wip

[4.x] Time based sharding

.github/workflows/static.yml

@@ -2,9 +2,17 @@ name: Static Analysis
 
 on:
   push:
+    branches: [4.x]
   pull_request:
   schedule:
-    - cron: '0 0 * * *'
+    - cron: '0 9 * * *'
+
+concurrency:
+  group: static-${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
 
 jobs:
   static:
@@ -12,6 +20,7 @@ jobs:
     name: Static Tests
 
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     strategy:
       fail-fast: true
       matrix:
@@ -19,26 +28,41 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Setup PHP
       uses: shivammathur/setup-php@v2
       with:
-        php-version: 8.2
+        php-version: 8.3
         tools: composer:v2
         coverage: none
+        extensions: sockets
+
+    - name: Get Composer cache directory
+      id: composer-cache
+      shell: bash
+      run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+
+    - name: Cache Composer dependencies
+      uses: actions/cache@v5
+      with:
+        path: ${{ steps.composer-cache.outputs.dir }}
+        key: static-php-8.3-${{ matrix.dependency-version }}-composer-${{ hashFiles('**/composer.json', '**/composer.lock') }}
+        restore-keys: |
+          static-php-8.3-${{ matrix.dependency-version }}-composer-
+          static-php-8.3-composer-
 
     - name: Install Dependencies
-      run: composer update --prefer-stable --no-interaction --no-progress --ansi
+      run: composer update --${{ matrix.dependency-version }} --no-interaction --no-progress --ansi
 
-  # - name: Type Check
-  #   run: composer test:type:check
+    - name: Profanity Check
+      run: composer test:profanity
+
+    - name: Type Check
+      run: composer test:type:check
 
     - name: Type Coverage
       run: composer test:type:coverage
 
-    - name: Refacto
-      run: composer test:refacto
-
     - name: Style
       run: composer test:lint

.github/workflows/tests.yml

@@ -2,26 +2,40 @@ name: Tests
 
 on:
   push:
+    branches: [4.x]
   pull_request:
+  schedule:
+    - cron: '0 9 * * *'
+
+concurrency:
+  group: tests-${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
 
 jobs:
   tests:
     if: github.event_name != 'schedule' || github.repository == 'pestphp/pest'
 
     runs-on: ${{ matrix.os }}
+    timeout-minutes: 15
     strategy:
       fail-fast: true
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-        symfony: ['7.0']
-        php: ['8.2', '8.3']
-        dependency_version: [prefer-lowest, prefer-stable]
+        os: [ubuntu-latest, macos-latest] # windows-latest
+        symfony: ['7.4', '8.0']
+        php: ['8.3', '8.4', '8.5']
+        dependency_version: [prefer-stable]
+        exclude:
+          - php: '8.3'
+            symfony: '8.0'
 
     name: PHP ${{ matrix.php }} - Symfony ^${{ matrix.symfony }} - ${{ matrix.os }} - ${{ matrix.dependency_version }}
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Setup PHP
       uses: shivammathur/setup-php@v2
@@ -29,6 +43,21 @@ jobs:
         php-version: ${{ matrix.php }}
         tools: composer:v2
         coverage: none
+        extensions: sockets
+
+    - name: Get Composer cache directory
+      id: composer-cache
+      shell: bash
+      run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+
+    - name: Cache Composer dependencies
+      uses: actions/cache@v5
+      with:
+        path: ${{ steps.composer-cache.outputs.dir }}
+        key: ${{ matrix.os }}-php-${{ matrix.php }}-symfony-${{ matrix.symfony }}-composer-${{ hashFiles('**/composer.json', '**/composer.lock') }}
+        restore-keys: |
+          ${{ matrix.os }}-php-${{ matrix.php }}-symfony-${{ matrix.symfony }}-composer-
+          ${{ matrix.os }}-php-${{ matrix.php }}-composer-
 
     - name: Setup Problem Matches
       run: |
@@ -36,7 +65,8 @@ jobs:
         echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"
 
     - name: Install PHP dependencies
-      run: composer update --${{ matrix.dependency_version }} --no-interaction --no-progress --ansi --with="symfony/console:~${{ matrix.symfony }}"
+      shell: bash
+      run: composer update --${{ matrix.dependency_version }} --no-interaction --no-progress --ansi --with="symfony/console:^${{ matrix.symfony }}"
 
     - name: Unit Tests
       run: composer test:unit
@@ -46,3 +76,21 @@ jobs:
 
     - name: Integration Tests
       run: composer test:integration
+
+    # tests-tia records coverage inside its sandbox, which requires
+    # pcov (or xdebug) in the process PHP. The main setup-php step is
+    # `coverage: none` for speed — re-enable pcov here just for the
+    # TIA step. Cheap: pcov startup is near-zero.
+    - name: Enable pcov for TIA
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ matrix.php }}
+        tools: composer:v2
+        coverage: pcov
+        extensions: sockets
+
+    - name: TIA End-to-End Tests
+      # Black-box tests drive Pest `--tia` against a throw-away sandbox.
+      # First scenario takes ~60s (composer-installs the host Pest into a
+      # cached template); subsequent clones are cheap.
+      run: composer test:tia

.gitignore

@@ -12,3 +12,5 @@ coverage.xml
 *.swp
 *.swo
 .vscode/
+.STREAM.md
+

CONTRIBUTING.md

@@ -42,7 +42,7 @@ composer test
 
 Check types:
 ```bash
-composer test:types
+composer test:type:check
 ```
 
 Unit tests:

Makefile

@@ -1,14 +0,0 @@
-# Well documented Makefiles
-DEFAULT_GOAL := help
-help:
-	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m<target>\033[0m\n"} /^[a-zA-Z0-9_-]+:.*?##/ { printf "  \033[36m%-40s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)
-
-build: ## Build all docker images. Specify the command e.g. via make build ARGS="--build-arg PHP=8.2"
-	docker compose build $(ARGS)
-
-##@ [Application]
-install: ## Install the composer dependencies
-	docker compose run --rm composer install
-
-test: ## Run the tests
-	docker compose run --rm composer test

README.md

@@ -1,43 +1,53 @@
 <p align="center">
-    <img src="https://raw.githubusercontent.com/pestphp/art/master/v3/banner.png" width="600" alt="PEST">
+    <img src="https://raw.githubusercontent.com/pestphp/art/master/v4/social.png" width="600" alt="PEST">
     <p align="center">
-        <a href="https://github.com/pestphp/pest/actions"><img alt="GitHub Workflow Status (master)" src="https://img.shields.io/github/actions/workflow/status/pestphp/pest/tests.yml?branch=2.x&label=Tests%202.x"></a>
+        <a href="https://github.com/pestphp/pest/actions"><img alt="GitHub Workflow Status (master)" src="https://img.shields.io/github/actions/workflow/status/pestphp/pest/tests.yml?branch=4.x&label=Tests%204.x"></a>
         <a href="https://packagist.org/packages/pestphp/pest"><img alt="Total Downloads" src="https://img.shields.io/packagist/dt/pestphp/pest"></a>
         <a href="https://packagist.org/packages/pestphp/pest"><img alt="Latest Version" src="https://img.shields.io/packagist/v/pestphp/pest"></a>
         <a href="https://packagist.org/packages/pestphp/pest"><img alt="License" src="https://img.shields.io/packagist/l/pestphp/pest"></a>
+        <a href="https://whyphp.dev"><img src="https://img.shields.io/badge/Why_PHP-in_2026-7A86E8?style=flat-square&labelColor=18181b" alt="Why PHP in 2026"></a>
     </p>
 </p>
 
 ------
 
-> Pest v3 Now Available: **[Read the announcement »](https://pestphp.com/docs/pest3-now-available)**.
+> Pest v4 Now Available: **[Read the announcement »](https://pestphp.com/docs/pest-v4-is-here-now-with-browser-testing)**.
 
 **Pest** is an elegant PHP testing Framework with a focus on simplicity, meticulously designed to bring back the joy of testing in PHP.
 
 - Explore our docs at **[pestphp.com »](https://pestphp.com)**
-- Follow us on Twitter at **[@pestphp »](https://twitter.com/pestphp)**
-- Join us at **[discord.gg/kaHY6p54JH »](https://discord.gg/kaHY6p54JH)** or **[t.me/+kYH5G4d5MV83ODk0 »](https://t.me/+kYH5G4d5MV83ODk0)**
+- Follow the creator Nuno Maduro:
+    - YouTube: **[youtube.com/@nunomaduro](https://youtube.com/@nunomaduro)** — Videos every week
+    - Twitch: **[twitch.tv/nunomaduro](https://twitch.tv/nunomaduro)** — Live coding on Mondays, Wednesdays, and Fridays at 9PM UTC
+    - Twitter / X: **[x.com/enunomaduro](https://x.com/enunomaduro)**
+    - LinkedIn: **[linkedin.com/in/nunomaduro](https://www.linkedin.com/in/nunomaduro)**
+    - Instagram: **[instagram.com/enunomaduro](https://www.instagram.com/enunomaduro)**
+    - Tiktok: **[tiktok.com/@enunomaduro](https://www.tiktok.com/@enunomaduro)**
 
 ## Sponsors
 
 We cannot thank our sponsors enough for their incredible support in funding Pest's development. Their contributions have been instrumental in making Pest the best it can be. For those who are interested in becoming a sponsor, please visit Nuno Maduro's Sponsor page at **[github.com/sponsors/nunomaduro](https://github.com/sponsors/nunomaduro)**.
 
+
 ### Platinum Sponsors
 
-- **[LaraJobs](https://larajobs.com)**
-- **[Brokerchooser](https://brokerchooser.com)**
-- **[Forge](https://forge.laravel.com)**
-- **[Spatie](https://spatie.be)**
-- **[Worksome](https://www.worksome.com/)**
+- **[CodeRabbit](https://coderabbit.ai/?ref=pestphp)**
+- **[Mailtrap](https://l.rw.rw/pestphp)**
+- **[SerpApi](https://serpapi.com/?ref=nunomaduro)**
+- **[Tighten](https://tighten.com/?ref=nunomaduro)**
+- **[Redberry](https://redberry.international/laravel-development/?utm_source=pest&utm_medium=banner&utm_campaign=pest_sponsorship)**
+
+### Gold Sponsors
+
+- **[CMS Max](https://cmsmax.com/?ref=pestphp)**
 
 ### Premium Sponsors
 
+- [Zapiet](https://zapiet.com/?ref=pestphp)
+- [Load Forge](https://loadforge.com/?ref=pestphp)
+- [Route4Me](https://route4me.com/pt?ref=pestphp)
+- [Nerdify](https://getnerdify.com/?ref=pestphp)
 - [Akaunting](https://akaunting.com/?ref=pestphp)
-- [Codecourse](https://codecourse.com/?ref=pestphp)
-- [DocuWriter.ai](https://www.docuwriter.ai/?ref=pestphp)
-- [Laracasts](https://laracasts.com/?ref=pestphp)
-- [Localazy](https://localazy.com/?ref=pestphp)
-- [Route4Me](https://www.route4me.com/?ref=pestphp)
-- [Zapiet](https://www.zapiet.com/?ref=pestphp)
+- [TestMu AI](https://www.testmuai.com/?utm_medium=sponsor&utm_source=pest)
 
 Pest is an open-sourced software licensed under the **[MIT license](https://opensource.org/licenses/MIT)**.

RELEASE.md

@@ -2,10 +2,10 @@
 
 When releasing a new version of Pest there are some checks and updates that need to be done:
 
-> **For Pest v2 you should use the `2.x` branch instead.**
+> **For Pest v3 you should use the `3.x` branch instead.**
 
-- Clear your local repository with: `git add . && git reset --hard && git checkout 3.x`
-- On the GitHub repository, check the contents of [github.com/pestphp/pest/compare/{latest_version}...3.x](https://github.com/pestphp/pest/compare/{latest_version}...3.x)
+- Clear your local repository with: `git add . && git reset --hard && git checkout 4.x`
+- On the GitHub repository, check the contents of [github.com/pestphp/pest/compare/{latest_version}...4.x](https://github.com/pestphp/pest/compare/{latest_version}...4.x)
 - Update the version number in [src/Pest.php](src/Pest.php)
 - Run the tests locally using: `composer test`
 - Commit the Pest file with the message: `git commit -m "release: vX.X.X"`

bin/pest

@@ -1,5 +1,7 @@
 #!/usr/bin/env php
-<?php declare(strict_types=1);
+<?php
+
+declare(strict_types=1);
 
 use Pest\Kernel;
 use Pest\Panic;
@@ -8,6 +10,7 @@ use Pest\TestCaseMethodFilters\AssigneeTestCaseFilter;
 use Pest\TestCaseMethodFilters\IssueTestCaseFilter;
 use Pest\TestCaseMethodFilters\NotesTestCaseFilter;
 use Pest\TestCaseMethodFilters\PrTestCaseFilter;
+use Pest\TestCaseMethodFilters\FlakyTestCaseFilter;
 use Pest\TestCaseMethodFilters\TodoTestCaseFilter;
 use Pest\TestSuite;
 use Symfony\Component\Console\Input\ArgvInput;
@@ -21,6 +24,7 @@ use Symfony\Component\Console\Output\ConsoleOutput;
 
     $dirty = false;
     $todo = false;
+    $flaky = false;
     $notes = false;
 
     foreach ($arguments as $key => $value) {
@@ -55,6 +59,11 @@ use Symfony\Component\Console\Output\ConsoleOutput;
             unset($arguments[$key]);
         }
 
+        if ($value === '--flaky') {
+            $flaky = true;
+            unset($arguments[$key]);
+        }
+
         if ($value === '--notes') {
             $notes = true;
             unset($arguments[$key]);
@@ -117,7 +126,6 @@ use Symfony\Component\Console\Output\ConsoleOutput;
         }
     }
 
-
     // Used when Pest is required using composer.
     $vendorPath = dirname(__DIR__, 4).'/vendor/autoload.php';
 
@@ -134,7 +142,16 @@ use Symfony\Component\Console\Output\ConsoleOutput;
 
     // Get $rootPath based on $autoloadPath
     $rootPath = dirname($autoloadPath, 2);
-    $input = new ArgvInput();
+
+    // Re-execs PHP without Xdebug on TIA replay runs so repeat `--tia`
+    // invocations aren't slowed by a coverage driver they don't use. Plain
+    // `pest` runs are left alone — users may rely on Xdebug for IDE
+    // breakpoints, step-through debugging, or custom tooling. See
+    // XdebugGuard for the full decision (coverage / tia-rebuild / Xdebug
+    // mode gates).
+    \Pest\Support\XdebugGuard::maybeDrop($rootPath);
+
+    $input = new ArgvInput;
 
     $testSuite = TestSuite::getInstance(
         $rootPath,
@@ -146,11 +163,15 @@ use Symfony\Component\Console\Output\ConsoleOutput;
     }
 
     if ($todo) {
-        $testSuite->tests->addTestCaseMethodFilter(new TodoTestCaseFilter());
+        $testSuite->tests->addTestCaseMethodFilter(new TodoTestCaseFilter);
+    }
+
+    if ($flaky) {
+        $testSuite->tests->addTestCaseMethodFilter(new FlakyTestCaseFilter);
     }
 
     if ($notes) {
-        $testSuite->tests->addTestCaseMethodFilter(new NotesTestCaseFilter());
+        $testSuite->tests->addTestCaseMethodFilter(new NotesTestCaseFilter);
     }
 
     if ($assignee = $input->getParameterOption('--assignee')) {

bin/pest-tia-vite-deps.mjs

@@ -0,0 +1,181 @@
+#!/usr/bin/env node
+
+/**
+ * TIA Vite dependency resolver.
+ *
+ * Spins up a throwaway headless Vite dev server using the project's
+ * `vite.config.*`, walks every `resources/js/Pages/**` entry to warm
+ * up the module graph, then serializes the graph as a reverse map:
+ *
+ *   { "<abs source path>": ["<page component name>", ...], ... }
+ *
+ * The resulting JSON is written to stdout. Stderr is silent on
+ * success so Pest can parse stdout without stripping.
+ *
+ * Why this exists: at TIA record time we need to know which Inertia
+ * page components depend on each shared source file (Button.vue,
+ * Layouts/*.vue, etc.) so a later edit to one of those files can
+ * invalidate only the tests that rendered an affected page. Vite
+ * already knows this via its module graph — we borrow it.
+ *
+ * Called from `Pest\Plugins\Tia\JsModuleGraph::build()` as:
+ *
+ *   node bin/pest-tia-vite-deps.mjs <absoluteProjectRoot>
+ *
+ * Environment:
+ *   TIA_VITE_PAGES_DIR  override the `resources/js/Pages` default.
+ *   TIA_VITE_TIMEOUT_MS  override the 20s internal watchdog.
+ */
+
+import { readdir } from 'node:fs/promises'
+import { existsSync } from 'node:fs'
+import { createRequire } from 'node:module'
+import { resolve, relative, extname, posix, sep, join } from 'node:path'
+import { pathToFileURL } from 'node:url'
+
+const PAGE_EXTENSIONS = new Set(['.vue', '.tsx', '.jsx', '.svelte'])
+const PROJECT_ROOT = resolve(process.argv[2] ?? process.cwd())
+const PAGES_REL = (process.env.TIA_VITE_PAGES_DIR ?? 'resources/js/Pages').replace(/\\/g, '/')
+const TIMEOUT_MS = Number.parseInt(process.env.TIA_VITE_TIMEOUT_MS ?? '20000', 10)
+
+// Resolve Vite from the project's own `node_modules`, not from this
+// helper's location (which lives under `vendor/pestphp/pest/bin/` and
+// has no `node_modules`). `createRequire` anchored at the project
+// root walks up from there, matching the resolution behaviour any
+// project-local script would see.
+async function loadVite() {
+  const projectRequire = createRequire(join(PROJECT_ROOT, 'package.json'))
+  const vitePath = projectRequire.resolve('vite')
+  return await import(pathToFileURL(vitePath).href)
+}
+
+const { createServer } = await loadVite()
+
+async function listPageFiles(pagesDir) {
+  if (!existsSync(pagesDir)) return []
+
+  const out = []
+  const walk = async (dir) => {
+    let entries
+    try { entries = await readdir(dir, { withFileTypes: true }) } catch { return }
+    for (const entry of entries) {
+      const full = resolve(dir, entry.name)
+      if (entry.isDirectory()) { await walk(full); continue }
+      if (PAGE_EXTENSIONS.has(extname(entry.name))) out.push(full)
+    }
+  }
+
+  await walk(pagesDir)
+  return out
+}
+
+function componentNameFor(pageAbs, pagesDir) {
+  const rel = relative(pagesDir, pageAbs).split(sep).join('/')
+  const ext = extname(rel)
+  return rel.slice(0, rel.length - ext.length)
+}
+
+async function main() {
+  const pagesDir = resolve(PROJECT_ROOT, PAGES_REL)
+  const pages = await listPageFiles(pagesDir)
+
+  if (pages.length === 0) {
+    process.stdout.write('{}')
+    return
+  }
+
+  // Boot Vite in middleware mode (no port binding, no HMR server).
+  // We only need the module graph; transformRequest per page warms
+  // it without running a bundle.
+  const server = await createServer({
+    configFile: undefined, // auto-detect vite.config.*
+    root: PROJECT_ROOT,
+    logLevel: 'silent',
+    clearScreen: false,
+    server: {
+      middlewareMode: true,
+      hmr: false,
+      watch: null,
+    },
+    appType: 'custom',
+    optimizeDeps: { disabled: true },
+  })
+
+  // Watchdog — don't let a pathological config hang the record run.
+  const killer = setTimeout(() => {
+    server.close().catch(() => {}).finally(() => process.exit(2))
+  }, TIMEOUT_MS)
+
+  // Reverse map: depSourcePath → Set<component name>.
+  const reverse = new Map()
+
+  const pageComponentCache = new Map()
+  for (const page of pages) {
+    pageComponentCache.set(page, componentNameFor(page, pagesDir))
+  }
+
+  try {
+    for (const pagePath of pages) {
+      const pageComponent = pageComponentCache.get(pagePath)
+      const pageUrl = '/' + posix.relative(
+        PROJECT_ROOT.split(sep).join('/'),
+        pagePath.split(sep).join('/'),
+      )
+
+      try {
+        await server.transformRequest(pageUrl, { ssr: false })
+      } catch {
+        // Transform errors (missing deps, syntax issues) shouldn't
+        // poison the whole graph — skip this page and continue.
+        continue
+      }
+
+      const pageModule = await server.moduleGraph.getModuleByUrl(pageUrl, false)
+      if (!pageModule) continue
+
+      // BFS over importedModules, scoped to files inside the project.
+      const visited = new Set()
+      const queue = [pageModule]
+      while (queue.length) {
+        const mod = queue.shift()
+        for (const imported of mod.importedModules) {
+          const id = imported.file ?? imported.id
+          if (!id || visited.has(id)) continue
+          visited.add(id)
+
+          // Skip files outside the project root (node_modules, etc.)
+          // and virtual modules (`\0`-prefixed ids from plugins).
+          if (id.startsWith('\0')) continue
+          if (!id.startsWith(PROJECT_ROOT)) continue
+
+          const rel = relative(PROJECT_ROOT, id).split(sep).join('/')
+          const bucket = reverse.get(rel) ?? new Set()
+          bucket.add(pageComponent)
+          reverse.set(rel, bucket)
+
+          queue.push(imported)
+        }
+      }
+    }
+  } finally {
+    clearTimeout(killer)
+    await server.close()
+  }
+
+  const payload = Object.create(null)
+  const keys = [...reverse.keys()].sort()
+  for (const key of keys) {
+    payload[key] = [...reverse.get(key)].sort()
+  }
+
+  process.stdout.write(JSON.stringify(payload))
+}
+
+try {
+  // Node 20 dynamic-import path — some environments are pickier than others.
+  void pathToFileURL // retained to silence tree-shakers referencing the import
+  await main()
+} catch (err) {
+  process.stderr.write(String(err?.stack ?? err ?? 'unknown error'))
+  process.exit(1)
+}

bin/worker.php

@@ -32,10 +32,13 @@ $bootPest = (static function (): void {
         'status-file:',
         'progress-file:',
         'unexpected-output-file:',
-        'testresult-file:',
+        'test-result-file:',
+        'result-cache-file:',
         'teamcity-file:',
         'testdox-file:',
         'testdox-color',
+        'testdox-columns:',
+        'testdox-summary',
         'phpunit-argv:',
     ]);
 
@@ -61,7 +64,8 @@ $bootPest = (static function (): void {
 
     assert(isset($getopt['progress-file']) && is_string($getopt['progress-file']));
     assert(isset($getopt['unexpected-output-file']) && is_string($getopt['unexpected-output-file']));
-    assert(isset($getopt['testresult-file']) && is_string($getopt['testresult-file']));
+    assert(isset($getopt['test-result-file']) && is_string($getopt['test-result-file']));
+    assert(! isset($getopt['result-cache-file']) || is_string($getopt['result-cache-file']));
     assert(! isset($getopt['teamcity-file']) || is_string($getopt['teamcity-file']));
     assert(! isset($getopt['testdox-file']) || is_string($getopt['testdox-file']));
 
@@ -77,11 +81,12 @@ $bootPest = (static function (): void {
         $phpunitArgv,
         $getopt['progress-file'],
         $getopt['unexpected-output-file'],
-        $getopt['testresult-file'],
+        $getopt['test-result-file'],
+        $getopt['result-cache-file'] ?? null,
         $getopt['teamcity-file'] ?? null,
         $getopt['testdox-file'] ?? null,
         isset($getopt['testdox-color']),
-        $getopt['testdox-columns'] ?? null,
+        (int) ($getopt['testdox-columns'] ?? null),
     );
 
     while (true) {

composer.json

@@ -17,18 +17,22 @@
         }
     ],
     "require": {
-        "php": "^8.2.0",
-        "brianium/paratest": "^7.5.4",
-        "nunomaduro/collision": "^8.4.0",
-        "nunomaduro/termwind": "^2.1.0",
-        "pestphp/pest-plugin": "^3.0.0",
-        "pestphp/pest-plugin-arch": "^3.0.0",
-        "pestphp/pest-plugin-mutate": "^3.0.3",
-        "phpunit/phpunit": "^11.3.4"
+        "php": "^8.3.0",
+        "brianium/paratest": "^7.20.0",
+        "composer/xdebug-handler": "^3.0.5",
+        "nunomaduro/collision": "^8.9.4",
+        "nunomaduro/termwind": "^2.4.0",
+        "pestphp/pest-plugin": "^4.0.0",
+        "pestphp/pest-plugin-arch": "^4.0.2",
+        "pestphp/pest-plugin-mutate": "^4.0.1",
+        "pestphp/pest-plugin-profanity": "^4.2.1",
+        "phpunit/phpunit": "^12.5.23",
+        "symfony/process": "^7.4.8|^8.0.8"
     },
     "conflict": {
-        "phpunit/phpunit": ">11.3.4",
-        "sebastian/exporter": "<6.0.0",
+        "filp/whoops": "<2.18.3",
+        "phpunit/phpunit": ">12.5.23",
+        "sebastian/exporter": "<7.0.0",
         "webmozart/assert": "<1.11.0"
     },
     "autoload": {
@@ -47,14 +51,19 @@
             "Tests\\Fixtures\\Arch\\": "tests/Fixtures/Arch",
             "Tests\\": "tests/PHPUnit/"
         },
+        "classmap": [
+            "tests/Fixtures/Arch/ToBeCasedCorrectly/IncorrectCasing/incorrectCasing.php"
+        ],
         "files": [
             "tests/Autoload.php"
         ]
     },
     "require-dev": {
-        "pestphp/pest-dev-tools": "^3.0.0",
-        "pestphp/pest-plugin-type-coverage": "^3.0.0",
-        "symfony/process": "^7.1.3"
+        "mrpunyapal/peststan": "^0.2.5",
+        "pestphp/pest-dev-tools": "^4.1.0",
+        "pestphp/pest-plugin-browser": "^4.3.1",
+        "pestphp/pest-plugin-type-coverage": "^4.0.4",
+        "psy/psysh": "^0.12.22"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,
@@ -69,25 +78,31 @@
         "bin/pest"
     ],
     "scripts": {
-        "refacto": "rector",
-        "lint": "pint",
-        "test:refacto": "rector --dry-run",
-        "test:lint": "pint --test",
+        "lint": [
+            "rector",
+            "pint --parallel"
+        ],
+        "test:lint": [
+            "rector --dry-run",
+            "pint --parallel --test"
+        ],
+        "test:profanity": "php bin/pest --profanity --compact",
         "test:type:check": "phpstan analyse --ansi --memory-limit=-1 --debug",
         "test:type:coverage": "php -d memory_limit=-1  bin/pest --type-coverage --min=100",
-        "test:unit": "php bin/pest --colors=always --exclude-group=integration --compact",
-        "test:inline": "php bin/pest --colors=always --configuration=phpunit.inline.xml",
-        "test:parallel": "php bin/pest --colors=always --exclude-group=integration --parallel --processes=3",
-        "test:integration": "php bin/pest --colors=always --group=integration -v",
-        "update:snapshots": "REBUILD_SNAPSHOTS=true php bin/pest --colors=always --update-snapshots",
+        "test:unit": "php bin/pest --exclude-group=integration --compact",
+        "test:inline": "php bin/pest --configuration=phpunit.inline.xml",
+        "test:parallel": "php bin/pest --exclude-group=integration --parallel --processes=3",
+        "test:integration": "php bin/pest --group=integration -v",
+        "test:tia": "php bin/pest --configuration=tests-tia/phpunit.xml",
+        "update:snapshots": "REBUILD_SNAPSHOTS=true php bin/pest --update-snapshots",
         "test": [
-            "@test:refacto",
             "@test:lint",
             "@test:type:check",
             "@test:type:coverage",
             "@test:unit",
             "@test:parallel",
-            "@test:integration"
+            "@test:integration",
+            "@test:tia"
         ]
     },
     "extra": {
@@ -110,6 +125,8 @@
                 "Pest\\Plugins\\Snapshot",
                 "Pest\\Plugins\\Verbose",
                 "Pest\\Plugins\\Version",
+                "Pest\\Plugins\\Shard",
+                "Pest\\Plugins\\Tia",
                 "Pest\\Plugins\\Parallel"
             ]
         },

docker-compose.yml

@@ -1,14 +0,0 @@
-version: "3.8"
-
-services:
-  php:
-    build:
-      context: ./docker
-    volumes:
-      - .:/var/www/html
-  composer:
-    build:
-      context: ./docker
-    volumes:
-      - .:/var/www/html
-    entrypoint: ["composer"]

overrides/Event/Value/ThrowableBuilder.php

@@ -52,6 +52,8 @@ use PHPUnit\Util\Filter;
 use PHPUnit\Util\ThrowableToStringMapper;
 
 /**
+ * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
+ *
  * @internal This class is not covered by the backward compatibility promise for PHPUnit
  */
 final readonly class ThrowableBuilder
@@ -68,7 +70,7 @@ final readonly class ThrowableBuilder
             $previous = self::from($previous);
         }
 
-        $trace = Filter::getFilteredStacktrace($t);
+        $trace = Filter::stackTraceFromThrowableAsString($t);
 
         if ($t instanceof RenderableOnCollisionEditor && $frame = $t->toCollisionEditor()) {
             $file = $frame->getFile();
@@ -82,7 +84,7 @@ final readonly class ThrowableBuilder
             $t->getMessage(),
             ThrowableToStringMapper::map($t),
             $trace,
-            $previous
+            $previous,
         );
     }
 }

overrides/Logging/JUnit/JunitXmlLogger.php

@@ -1,6 +1,39 @@
 <?php
 
+/*
+ * BSD 3-Clause License
+ *
+ * Copyright (c) 2001-2023, Sebastian Bergmann
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
 declare(strict_types=1);
+
 /*
  * This file is part of PHPUnit.
  *
@@ -14,6 +47,9 @@ namespace PHPUnit\Logging\JUnit;
 
 use DOMDocument;
 use DOMElement;
+use Pest\Logging\Converter;
+use Pest\Support\Container;
+use Pest\TestSuite;
 use PHPUnit\Event\Code\Test;
 use PHPUnit\Event\Code\TestMethod;
 use PHPUnit\Event\EventFacadeIsSealedException;
@@ -27,6 +63,7 @@ use PHPUnit\Event\Test\Finished;
 use PHPUnit\Event\Test\MarkedIncomplete;
 use PHPUnit\Event\Test\PreparationStarted;
 use PHPUnit\Event\Test\Prepared;
+use PHPUnit\Event\Test\PrintedUnexpectedOutput;
 use PHPUnit\Event\Test\Skipped;
 use PHPUnit\Event\TestSuite\Started;
 use PHPUnit\Event\UnknownSubscriberTypeException;
@@ -41,13 +78,15 @@ use function str_replace;
 use function trim;
 
 /**
+ * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
+ *
  * @internal This class is not covered by the backward compatibility promise for PHPUnit
  */
 final class JunitXmlLogger
 {
     private readonly Printer $printer;
 
-    private readonly \Pest\Logging\Converter $converter; // pest-added
+    private readonly Converter $converter; // pest-added
 
     private DOMDocument $document;
 
@@ -59,32 +98,32 @@ final class JunitXmlLogger
     private array $testSuites = [];
 
     /**
-     * @psalm-var array<int,int>
+     * @var array<int,int>
      */
     private array $testSuiteTests = [0];
 
     /**
-     * @psalm-var array<int,int>
+     * @var array<int,int>
      */
     private array $testSuiteAssertions = [0];
 
     /**
-     * @psalm-var array<int,int>
+     * @var array<int,int>
      */
     private array $testSuiteErrors = [0];
 
     /**
-     * @psalm-var array<int,int>
+     * @var array<int,int>
      */
     private array $testSuiteFailures = [0];
 
     /**
-     * @psalm-var array<int,int>
+     * @var array<int,int>
      */
     private array $testSuiteSkipped = [0];
 
     /**
-     * @psalm-var array<int,int>
+     * @var array<int,int>
      */
     private array $testSuiteTimes = [0];
 
@@ -105,7 +144,7 @@ final class JunitXmlLogger
     public function __construct(Printer $printer, Facade $facade)
     {
         $this->printer = $printer;
-        $this->converter = new \Pest\Logging\Converter(\Pest\Support\Container::getInstance()->get(\Pest\TestSuite::class)->rootPath); // pest-added
+        $this->converter = new Converter(Container::getInstance()->get(TestSuite::class)->rootPath); // pest-added
 
         $this->registerSubscribers($facade);
         $this->createDocument();
@@ -113,7 +152,7 @@ final class JunitXmlLogger
 
     public function flush(): void
     {
-        $this->printer->print($this->document->saveXML());
+        $this->printer->print($this->document->saveXML() ?: '');
 
         $this->printer->flush();
     }
@@ -195,28 +234,34 @@ final class JunitXmlLogger
         $this->createTestCase($event);
     }
 
-    /**
-     * @throws InvalidArgumentException
-     */
     public function testPreparationFailed(): void
     {
         $this->preparationFailed = true;
     }
 
-    /**
-     * @throws InvalidArgumentException
-     */
     public function testPrepared(): void
     {
         $this->prepared = true;
     }
 
+    public function testPrintedUnexpectedOutput(PrintedUnexpectedOutput $event): void
+    {
+        assert($this->currentTestCase !== null);
+
+        $systemOut = $this->document->createElement(
+            'system-out',
+            Xml::prepareString($event->output()),
+        );
+
+        $this->currentTestCase->appendChild($systemOut);
+    }
+
     /**
      * @throws InvalidArgumentException
      */
     public function testFinished(Finished $event): void
     {
-        if ($this->preparationFailed) {
+        if (! $this->prepared || $this->preparationFailed) {
             return;
         }
 
@@ -305,9 +350,11 @@ final class JunitXmlLogger
             new TestPreparationStartedSubscriber($this),
             new TestPreparationFailedSubscriber($this),
             new TestPreparedSubscriber($this),
+            new TestPrintedUnexpectedOutputSubscriber($this),
             new TestFinishedSubscriber($this),
             new TestErroredSubscriber($this),
             new TestFailedSubscriber($this),
+            new TestMarkedIncompleteSubscriber($this),
             new TestSkippedSubscriber($this),
             new TestRunnerExecutionFinishedSubscriber($this),
         );
@@ -431,7 +478,7 @@ final class JunitXmlLogger
     /**
      * @throws InvalidArgumentException
      *
-     * @psalm-assert !null $this->currentTestCase
+     * @phpstan-assert !null $this->currentTestCase
      */
     private function createTestCase(Errored|Failed|MarkedIncomplete|PreparationStarted|Prepared|Skipped $event): void
     {

overrides/Runner/Filter/NameFilterIterator.php

@@ -99,7 +99,9 @@ abstract class NameFilterIterator extends RecursiveFilterIterator
         }
 
         if ($test instanceof HasPrintableTestCaseName) {
-            $name = $test::getPrintableTestCaseName().'::'.$test->getPrintableTestCaseMethodName();
+            $name = trim(
+                $test::getPrintableTestCaseName().'::'.$test->getPrintableTestCaseMethodName().$test->dataSetAsString()
+            );
         } else {
             $name = $test::class.'::'.$test->nameWithDataSet();
         }

overrides/Runner/ResultCache/DefaultResultCache.php

@@ -46,9 +46,10 @@ declare(strict_types=1);
 namespace PHPUnit\Runner\ResultCache;
 
 use const DIRECTORY_SEPARATOR;
+use const LOCK_EX;
 
 use PHPUnit\Framework\TestStatus\TestStatus;
-use PHPUnit\Runner\DirectoryCannotBeCreatedException;
+use PHPUnit\Runner\DirectoryDoesNotExistException;
 use PHPUnit\Runner\Exception;
 use PHPUnit\Util\Filesystem;
 
@@ -65,24 +66,23 @@ use function json_encode;
 use function Pest\version;
 
 /**
+ * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
+ *
  * @internal This class is not covered by the backward compatibility promise for PHPUnit
  */
 final class DefaultResultCache implements ResultCache
 {
-    /**
-     * @var string
-     */
-    private const DEFAULT_RESULT_CACHE_FILENAME = '.phpunit.result.cache';
+    private const string DEFAULT_RESULT_CACHE_FILENAME = '.phpunit.result.cache';
 
     private readonly string $cacheFilename;
 
     /**
-     * @psalm-var array<string, TestStatus>
+     * @var array<string, TestStatus>
      */
     private array $defects = [];
 
     /**
-     * @psalm-var array<string, float>
+     * @var array<string, float>
      */
     private array $times = [];
 
@@ -95,28 +95,39 @@ final class DefaultResultCache implements ResultCache
         $this->cacheFilename = $filepath ?? $_ENV['PHPUNIT_RESULT_CACHE'] ?? self::DEFAULT_RESULT_CACHE_FILENAME;
     }
 
-    public function setStatus(string $id, TestStatus $status): void
+    public function setStatus(ResultCacheId $id, TestStatus $status): void
     {
         if ($status->isSuccess()) {
             return;
         }
 
-        $this->defects[$id] = $status;
+        $this->defects[$id->asString()] = $status;
     }
 
-    public function status(string $id): TestStatus
+    public function status(ResultCacheId $id): TestStatus
     {
-        return $this->defects[$id] ?? TestStatus::unknown();
+        return $this->defects[$id->asString()] ?? TestStatus::unknown();
     }
 
-    public function setTime(string $id, float $time): void
+    public function setTime(ResultCacheId $id, float $time): void
     {
+        $this->times[$id->asString()] = $time;
+    }
+
+    public function time(ResultCacheId $id): float
+    {
+        return $this->times[$id->asString()] ?? 0.0;
+    }
+
+    public function mergeWith(self $other): void
+    {
+        foreach ($other->defects as $id => $defect) {
+            $this->defects[$id] = $defect;
+        }
+
+        foreach ($other->times as $id => $time) {
             $this->times[$id] = $time;
         }
-
-    public function time(string $id): float
-    {
-        return $this->times[$id] ?? 0.0;
     }
 
     public function load(): void
@@ -165,7 +176,7 @@ final class DefaultResultCache implements ResultCache
     public function persist(): void
     {
         if (! Filesystem::createDirectory(dirname($this->cacheFilename))) {
-            throw new DirectoryCannotBeCreatedException($this->cacheFilename);
+            throw new DirectoryDoesNotExistException(dirname($this->cacheFilename));
         }
 
         $data = [

overrides/Runner/TestSuiteSorter.php

@@ -0,0 +1,388 @@
+<?php
+
+/*
+ * BSD 3-Clause License
+ *
+ * Copyright (c) 2001-2023, Sebastian Bergmann
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+declare(strict_types=1);
+
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace PHPUnit\Runner;
+
+use PHPUnit\Framework\DataProviderTestSuite;
+use PHPUnit\Framework\Reorderable;
+use PHPUnit\Framework\Test;
+use PHPUnit\Framework\TestCase;
+use PHPUnit\Framework\TestSuite;
+use PHPUnit\Runner\ResultCache\NullResultCache;
+use PHPUnit\Runner\ResultCache\ResultCache;
+use PHPUnit\Runner\ResultCache\ResultCacheId;
+
+use function array_diff;
+use function array_merge;
+use function array_reverse;
+use function array_splice;
+use function assert;
+use function count;
+use function in_array;
+use function max;
+use function shuffle;
+use function usort;
+
+/**
+ * @internal This class is not covered by the backward compatibility promise for PHPUnit
+ */
+final class TestSuiteSorter
+{
+    public const int ORDER_DEFAULT = 0;
+
+    public const int ORDER_RANDOMIZED = 1;
+
+    public const int ORDER_REVERSED = 2;
+
+    public const int ORDER_DEFECTS_FIRST = 3;
+
+    public const int ORDER_DURATION = 4;
+
+    public const int ORDER_SIZE = 5;
+
+    /**
+     * @var non-empty-array<non-empty-string, positive-int>
+     */
+    private const array SIZE_SORT_WEIGHT = [
+        'small' => 1,
+        'medium' => 2,
+        'large' => 3,
+        'unknown' => 4,
+    ];
+
+    /**
+     * @var array<string, int> Associative array of (string => DEFECT_SORT_WEIGHT) elements
+     */
+    private array $defectSortOrder = [];
+
+    private readonly ResultCache $cache;
+
+    public function __construct(?ResultCache $cache = null)
+    {
+        $this->cache = $cache ?? new NullResultCache;
+    }
+
+    /**
+     * @throws Exception
+     */
+    public function reorderTestsInSuite(Test $suite, int $order, bool $resolveDependencies, int $orderDefects): void
+    {
+        $allowedOrders = [
+            self::ORDER_DEFAULT,
+            self::ORDER_REVERSED,
+            self::ORDER_RANDOMIZED,
+            self::ORDER_DURATION,
+            self::ORDER_SIZE,
+        ];
+
+        if (! in_array($order, $allowedOrders, true)) {
+            // @codeCoverageIgnoreStart
+            throw new InvalidOrderException;
+            // @codeCoverageIgnoreEnd
+        }
+
+        $allowedOrderDefects = [
+            self::ORDER_DEFAULT,
+            self::ORDER_DEFECTS_FIRST,
+        ];
+
+        if (! in_array($orderDefects, $allowedOrderDefects, true)) {
+            // @codeCoverageIgnoreStart
+            throw new InvalidOrderException;
+            // @codeCoverageIgnoreEnd
+        }
+
+        if ($suite instanceof TestSuite) {
+            foreach ($suite as $_suite) {
+                $this->reorderTestsInSuite($_suite, $order, $resolveDependencies, $orderDefects);
+            }
+
+            if ($orderDefects === self::ORDER_DEFECTS_FIRST) {
+                $this->addSuiteToDefectSortOrder($suite);
+            }
+
+            $this->sort($suite, $order, $resolveDependencies, $orderDefects);
+        }
+    }
+
+    private function sort(TestSuite $suite, int $order, bool $resolveDependencies, int $orderDefects): void
+    {
+        if ($suite->tests() === []) {
+            return;
+        }
+
+        if ($order === self::ORDER_REVERSED) {
+            $suite->setTests($this->reverse($suite->tests()));
+        } elseif ($order === self::ORDER_RANDOMIZED) {
+            $suite->setTests($this->randomize($suite->tests()));
+        } elseif ($order === self::ORDER_DURATION) {
+            $suite->setTests($this->sortByDuration($suite->tests()));
+        } elseif ($order === self::ORDER_SIZE) {
+            $suite->setTests($this->sortBySize($suite->tests()));
+        }
+
+        if ($orderDefects === self::ORDER_DEFECTS_FIRST) {
+            $suite->setTests($this->sortDefectsFirst($suite->tests()));
+        }
+
+        if ($resolveDependencies && ! ($suite instanceof DataProviderTestSuite)) {
+            $tests = $suite->tests();
+
+            /** @noinspection PhpParamsInspection */
+            /** @phpstan-ignore argument.type */
+            $suite->setTests($this->resolveDependencies($tests));
+        }
+    }
+
+    private function addSuiteToDefectSortOrder(TestSuite $suite): void
+    {
+        $max = 0;
+
+        foreach ($suite->tests() as $test) {
+            assert($test instanceof Reorderable);
+
+            $sortId = $test->sortId();
+
+            if (! isset($this->defectSortOrder[$sortId])) {
+                $this->defectSortOrder[$sortId] = $this->cache->status(ResultCacheId::fromReorderable($test))->asInt();
+                $max = max($max, $this->defectSortOrder[$sortId]);
+            }
+        }
+
+        $this->defectSortOrder[$suite->sortId()] = $max;
+    }
+
+    /**
+     * @param  list<Test>  $tests
+     * @return list<Test>
+     */
+    private function reverse(array $tests): array
+    {
+        return array_reverse($tests);
+    }
+
+    /**
+     * @param  list<Test>  $tests
+     * @return list<Test>
+     */
+    private function randomize(array $tests): array
+    {
+        shuffle($tests);
+
+        return $tests;
+    }
+
+    /**
+     * @param  list<Test>  $tests
+     * @return list<Test>
+     */
+    private function sortDefectsFirst(array $tests): array
+    {
+        usort(
+            $tests,
+            fn (Test $left, Test $right) => $this->cmpDefectPriorityAndTime($left, $right),
+        );
+
+        return $tests;
+    }
+
+    /**
+     * @param  list<Test>  $tests
+     * @return list<Test>
+     */
+    private function sortByDuration(array $tests): array
+    {
+        usort(
+            $tests,
+            fn (Test $left, Test $right) => $this->cmpDuration($left, $right),
+        );
+
+        return $tests;
+    }
+
+    /**
+     * @param  list<Test>  $tests
+     * @return list<Test>
+     */
+    private function sortBySize(array $tests): array
+    {
+        usort(
+            $tests,
+            fn (Test $left, Test $right) => $this->cmpSize($left, $right),
+        );
+
+        return $tests;
+    }
+
+    /**
+     * Comparator callback function to sort tests for "reach failure as fast as possible".
+     *
+     * 1. sort tests by defect weight defined in self::DEFECT_SORT_WEIGHT
+     * 2. when tests are equally defective, sort the fastest to the front
+     * 3. do not reorder successful tests
+     */
+    private function cmpDefectPriorityAndTime(Test $a, Test $b): int
+    {
+        assert($a instanceof Reorderable);
+        assert($b instanceof Reorderable);
+
+        $priorityA = $this->defectSortOrder[$a->sortId()] ?? 0;
+        $priorityB = $this->defectSortOrder[$b->sortId()] ?? 0;
+
+        if ($priorityA !== $priorityB) {
+            // Sort defect weight descending
+            return $priorityB <=> $priorityA;
+        }
+
+        if ($priorityA > 0 || $priorityB > 0) {
+            return $this->cmpDuration($a, $b);
+        }
+
+        // do not change execution order
+        return 0;
+    }
+
+    /**
+     * Compares test duration for sorting tests by duration ascending.
+     */
+    private function cmpDuration(Test $a, Test $b): int
+    {
+        if (! ($a instanceof Reorderable && $b instanceof Reorderable)) {
+            return 0;
+        }
+
+        return $this->cache->time(ResultCacheId::fromReorderable($a)) <=> $this->cache->time(ResultCacheId::fromReorderable($b));
+    }
+
+    /**
+     * Compares test size for sorting tests small->medium->large->unknown.
+     */
+    private function cmpSize(Test $a, Test $b): int
+    {
+        $sizeA = ($a instanceof TestCase || $a instanceof DataProviderTestSuite)
+            ? $a->size()->asString()
+            : 'unknown';
+        $sizeB = ($b instanceof TestCase || $b instanceof DataProviderTestSuite)
+            ? $b->size()->asString()
+            : 'unknown';
+
+        return self::SIZE_SORT_WEIGHT[$sizeA] <=> self::SIZE_SORT_WEIGHT[$sizeB];
+    }
+
+    /**
+     * Reorder Tests within a TestCase in such a way as to resolve as many dependencies as possible.
+     * The algorithm will leave the tests in original running order when it can.
+     * For more details see the documentation for test dependencies.
+     *
+     * Short description of algorithm:
+     * 1. Pick the next Test from remaining tests to be checked for dependencies.
+     * 2. If the test has no dependencies: mark done, start again from the top
+     * 3. If the test has dependencies but none left to do: mark done, start again from the top
+     * 4. When we reach the end add any leftover tests to the end. These will be marked 'skipped' during execution.
+     *
+     * @param  array<TestCase>  $tests
+     * @return array<TestCase>
+     */
+    private function resolveDependencies(array $tests): array
+    {
+        // Pest: Fast-path. If no test in this suite declares dependencies, the
+        // original O(N^2) algorithm is wasted work — it would splice each test
+        // one-by-one back into the same order. The check deliberately walks
+        // TestCase instances directly instead of calling TestSuite::requires(),
+        // because the latter lazily builds TestSuite::provides() via
+        // ExecutionOrderDependency::mergeUnique, which is O(N^2) in the total
+        // number of tests. With thousands of tests that single call alone can
+        // burn several seconds before the sort even begins. Reading the
+        // cached TestCase::$dependencies property stays O(N) and costs nothing
+        // when no test uses `->depends()` / PHPUnit `@depends`.
+        if (! $this->anyTestHasDependencies($tests)) {
+            return $tests;
+        }
+
+        $newTestOrder = [];
+        $i = 0;
+        $provided = [];
+
+        do {
+            if (array_diff($tests[$i]->requires(), $provided) === []) {
+                $provided = array_merge($provided, $tests[$i]->provides());
+                $newTestOrder = array_merge($newTestOrder, array_splice($tests, $i, 1));
+                $i = 0;
+            } else {
+                $i++;
+            }
+        } while ($tests !== [] && ($i < count($tests)));
+
+        return array_merge($newTestOrder, $tests);
+    }
+
+    /**
+     * Cheaply determines whether any test in the tree declares @depends.
+     *
+     * Walks `TestSuite` containers recursively and inspects each `TestCase`
+     * directly so it never triggers `TestSuite::provides()`, which is O(N^2)
+     * in the total number of aggregated tests.
+     *
+     * @param  iterable<Test>  $tests
+     */
+    private function anyTestHasDependencies(iterable $tests): bool
+    {
+        foreach ($tests as $test) {
+            if ($test instanceof TestSuite) {
+                if ($this->anyTestHasDependencies($test->tests())) {
+                    return true;
+                }
+
+                continue;
+            }
+
+            if ($test instanceof TestCase && $test->requires() !== []) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}

overrides/TextUI/TestSuiteFilterProcessor.php

@@ -45,6 +45,7 @@ declare(strict_types=1);
 namespace PHPUnit\TextUI;
 
 use Pest\Plugins\Only;
+use Pest\Runner\Filter\EnsureTestCaseIsInitiatedFilter;
 use PHPUnit\Event;
 use PHPUnit\Framework\TestSuite;
 use PHPUnit\Runner\Filter\Factory;
@@ -66,6 +67,12 @@ final readonly class TestSuiteFilterProcessor
     {
         $factory = new Factory;
 
+        // @phpstan-ignore-next-line
+        (fn () => $this->filters[] = [
+            'className' => EnsureTestCaseIsInitiatedFilter::class,
+            'argument' => '',
+        ])->call($factory);
+
         if (! $configuration->hasFilter() &&
             ! $configuration->hasGroups() &&
             ! $configuration->hasExcludeGroups() &&
@@ -73,6 +80,8 @@ final readonly class TestSuiteFilterProcessor
             ! $configuration->hasTestsCovering() &&
             ! $configuration->hasTestsUsing() &&
             ! Only::isEnabled()) {
+            $suite->injectFilter($factory);
+
             return;
         }
 

phpstan-baseline.neon

@@ -0,0 +1,121 @@
+parameters:
+	ignoreErrors:
+		-
+			message: '#^Trait Pest\\Concerns\\Expectable is used zero times and is not analysed\.$#'
+			identifier: trait.unused
+			count: 1
+			path: src/Concerns/Expectable.php
+
+		-
+			message: '#^Trait Pest\\Concerns\\Logging\\WritesToConsole is used zero times and is not analysed\.$#'
+			identifier: trait.unused
+			count: 1
+			path: src/Concerns/Logging/WritesToConsole.php
+
+		-
+			message: '#^Trait Pest\\Concerns\\Testable is used zero times and is not analysed\.$#'
+			identifier: trait.unused
+			count: 1
+			path: src/Concerns/Testable.php
+
+		-
+			message: '#^Method Pest\\Expectation\:\:and\(\) should return Pest\\Expectation\<TAndValue\> but returns \(Pest\\Expectation&TAndValue\)\|Pest\\Expectation\<TAndValue of mixed\>\.$#'
+			identifier: return.type
+			count: 1
+			path: src/Expectation.php
+
+		-
+			message: '#^PHPDoc tag @property for property Pest\\Expectation\:\:\$each contains generic class Pest\\Expectations\\EachExpectation but does not specify its types\: TValue$#'
+			identifier: missingType.generics
+			count: 1
+			path: src/Expectation.php
+
+		-
+			message: '#^PHPDoc tag @property for property Pest\\Expectation\:\:\$not contains generic class Pest\\Expectations\\OppositeExpectation but does not specify its types\: TValue$#'
+			identifier: missingType.generics
+			count: 1
+			path: src/Expectation.php
+
+		-
+			message: '#^Parameter \#2 \$newScope of method Closure\:\:bindTo\(\) expects ''static''\|class\-string\|object\|null, string given\.$#'
+			identifier: argument.type
+			count: 1
+			path: src/Expectation.php
+
+		-
+			message: '#^Function expect\(\) should return Pest\\Expectation\<TValue\|null\> but returns Pest\\Expectation\<TValue\|null\>\.$#'
+			identifier: return.type
+			count: 1
+			path: src/Functions.php
+
+		-
+			message: '#^Parameter \#1 \$argv of method PHPUnit\\TextUI\\Application\:\:run\(\) expects list\<string\>, array\<int, string\> given\.$#'
+			identifier: argument.type
+			count: 1
+			path: src/Kernel.php
+
+		-
+			message: '#^Call to an undefined method object&TValue of mixed\:\:__toString\(\)\.$#'
+			identifier: method.notFound
+			count: 1
+			path: src/Mixins/Expectation.php
+
+		-
+			message: '#^Call to an undefined method object&TValue of mixed\:\:toArray\(\)\.$#'
+			identifier: method.notFound
+			count: 4
+			path: src/Mixins/Expectation.php
+
+		-
+			message: '#^Call to an undefined method object&TValue of mixed\:\:toSnapshot\(\)\.$#'
+			identifier: method.notFound
+			count: 1
+			path: src/Mixins/Expectation.php
+
+		-
+			message: '#^Call to an undefined method object&TValue of mixed\:\:toString\(\)\.$#'
+			identifier: method.notFound
+			count: 1
+			path: src/Mixins/Expectation.php
+
+		-
+			message: '#^Call to static method PHPUnit\\Framework\\Assert\:\:assertTrue\(\) with true will always evaluate to true\.$#'
+			identifier: staticMethod.alreadyNarrowedType
+			count: 2
+			path: src/Mixins/Expectation.php
+
+		-
+			message: '#^PHPDoc tag @var with type callable\(\)\: bool is not subtype of native type Closure\|null\.$#'
+			identifier: varTag.nativeType
+			count: 1
+			path: src/PendingCalls/TestCall.php
+
+		-
+			message: '#^Parameter \#4 \$testErroredEvents of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\Event\\Test\\AfterLastTestMethodErrored\|PHPUnit\\Event\\Test\\BeforeFirstTestMethodErrored\|PHPUnit\\Event\\Test\\Errored\>, array given\.$#'
+			identifier: argument.type
+			count: 1
+			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
+
+		-
+			message: '#^Parameter \#7 \$testSuiteSkippedEvents of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\Event\\TestSuite\\Skipped\>, array given\.$#'
+			identifier: argument.type
+			count: 1
+			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
+
+		-
+			message: '#^Parameter \#8 \$testSkippedEvents of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\Event\\Test\\Skipped\>, array given\.$#'
+			identifier: argument.type
+			count: 1
+			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
+
+		-
+			message: '#^Parameter \#9 \$testMarkedIncompleteEvents of class PHPUnit\\TestRunner\\TestResult\\TestResult constructor expects list\<PHPUnit\\Event\\Test\\MarkedIncomplete\>, array given\.$#'
+			identifier: argument.type
+			count: 1
+			path: src/Plugins/Parallel/Paratest/WrapperRunner.php
+
+		-
+			message: '#^Property Pest\\Plugins\\Parallel\\Paratest\\WrapperRunner\:\:\$pending \(list\<non\-empty\-string\>\) does not accept array\<int, non\-empty\-string\>\.$#'
+			identifier: assign.propertyType
+			count: 1
+			path: src/Plugins/Parallel/Paratest/WrapperRunner.php

phpstan-pest-extension.neon

@@ -0,0 +1,5 @@
+services:
+    -
+        class: Pest\PHPStan\HigherOrderExpectationTypeExtension
+        tags:
+            - phpstan.broker.expressionTypeResolverExtension

phpstan.neon

@@ -1,23 +1,11 @@
 includes:
-    - vendor/phpstan/phpstan-strict-rules/rules.neon
-    - vendor/ergebnis/phpstan-rules/rules.neon
-    - vendor/thecodingmachine/phpstan-strict-rules/phpstan-strict-rules.neon
+    - phpstan-baseline.neon
+    - phpstan-pest-extension.neon
+    - vendor/mrpunyapal/peststan/extension.neon
 
 parameters:
-    level: max
+    level: 7
     paths:
         - src
 
-    checkMissingIterableValueType: true
-    reportUnmatchedIgnoredErrors: true
-
-    ignoreErrors:
-        - "#has a nullable return type declaration.#"
-        - "#Language construct isset\\(\\) should not be used.#"
-        - "#is not allowed to extend#"
-        - "#is concrete, but does not have a Test suffix#"
-        - "#with a nullable type declaration#"
-        - "#type mixed is not subtype of native#"
-        - "# with null as default value#"
-        - "#has parameter \\$closure with default value.#"
-        - "#has parameter \\$description with default value.#"
+    reportUnmatchedIgnoredErrors: false

phpunit.xml

@@ -16,6 +16,7 @@
   <testsuites>
     <testsuite name="default">
       <directory suffix=".php">./tests</directory>
+      <directory suffix=".php">./tests-external</directory>
       <exclude>./tests/.snapshots</exclude>
       <exclude>./tests/.tests</exclude>
       <exclude>./tests/Fixtures/Inheritance</exclude>

rector.php

@@ -2,7 +2,10 @@
 
 declare(strict_types=1);
 
+use Rector\CodingStyle\Rector\ArrowFunction\ArrowFunctionDelegatingCallToFirstClassCallableRector;
 use Rector\Config\RectorConfig;
+use Rector\DeadCode\Rector\ClassMethod\RemoveParentDelegatingConstructorRector;
+use Rector\TypeDeclaration\Rector\ClassMethod\NarrowObjectReturnTypeRector;
 use Rector\TypeDeclaration\Rector\ClassMethod\ReturnNeverTypeRector;
 
 return RectorConfig::configure()
@@ -12,6 +15,9 @@ return RectorConfig::configure()
     ->withSkip([
         __DIR__.'/src/Plugins/Parallel/Paratest/WrapperRunner.php',
         ReturnNeverTypeRector::class,
+        ArrowFunctionDelegatingCallToFirstClassCallableRector::class,
+        NarrowObjectReturnTypeRector::class,
+        RemoveParentDelegatingConstructorRector::class,
     ])
     ->withPreparedSets(
         deadCode: true,

resources/views/installers/plugin-browser.php

@@ -0,0 +1,22 @@
+<div class="mx-2 mb-1">
+    <p>
+        <span>Using the <span class="text-yellow font-bold">visit()</span> function requires the Pest Plugin Browser to be installed.</span>
+
+        <span class="ml-1 text-yellow font-bold">Run:</span>
+    </p>
+
+    <div>
+        <span class="text-gray mr-1">- </span>
+        <span>composer require pestphp/pest-plugin-browser:^4.0 --dev</span>
+    </div>
+
+    <div>
+        <span class="text-gray mr-1">- </span>
+        <span>npm install playwright@latest</span>
+    </div>
+
+    <div>
+        <span class="text-gray mr-1">- </span>
+        <span>npx playwright install</span>
+    </div>
+</div>

src/ArchPresets/AbstractPreset.php

@@ -53,7 +53,7 @@ abstract class AbstractPreset // @pest-arch-ignore-line
     /**
      * Runs the given callback for each namespace.
      *
-     * @param  callable(Expectation<string|null>): ArchExpectation  ...$callbacks
+     * @param  callable(Expectation<string>): ArchExpectation  ...$callbacks
      */
     final public function eachUserNamespace(callable ...$callbacks): void
     {

src/ArchPresets/Laravel.php

@@ -27,17 +27,21 @@ final class Laravel extends AbstractPreset
             ->ignoring('App\Enums');
 
         $this->expectations[] = expect('App\Enums')
-            ->toBeEnums();
+            ->toBeEnums()
+            ->ignoring('App\Enums\Concerns');
 
         $this->expectations[] = expect('App\Features')
-            ->toBeClasses();
+            ->toBeClasses()
+            ->ignoring('App\Features\Concerns');
 
         $this->expectations[] = expect('App\Features')
-            ->toHaveMethod('resolve');
+            ->toHaveMethod('resolve')
+            ->ignoring('App\Features\Concerns');
 
         $this->expectations[] = expect('App\Exceptions')
             ->classes()
-            ->toImplement('Throwable');
+            ->toImplement('Throwable')
+            ->ignoring('App\Exceptions\Handler');
 
         $this->expectations[] = expect('App')
             ->not->toImplement(Throwable::class)
@@ -65,6 +69,7 @@ final class Laravel extends AbstractPreset
             ->toHaveSuffix('Request');
 
         $this->expectations[] = expect('App\Http\Requests')
+            ->classes()
             ->toExtend('Illuminate\Foundation\Http\FormRequest');
 
         $this->expectations[] = expect('App\Http\Requests')
@@ -114,6 +119,7 @@ final class Laravel extends AbstractPreset
             ->toHaveMethod('handle');
 
         $this->expectations[] = expect('App\Notifications')
+            ->classes()
             ->toExtend('Illuminate\Notifications\Notification');
 
         $this->expectations[] = expect('App')
@@ -124,6 +130,7 @@ final class Laravel extends AbstractPreset
             ->toHaveSuffix('ServiceProvider');
 
         $this->expectations[] = expect('App\Providers')
+            ->classes()
             ->toExtend('Illuminate\Support\ServiceProvider');
 
         $this->expectations[] = expect('App\Providers')
@@ -146,10 +153,10 @@ final class Laravel extends AbstractPreset
             ->toHaveSuffix('Controller');
 
         $this->expectations[] = expect('App\Http')
-            ->toOnlyBeUsedIn('App\Http');
+            ->toOnlyBeUsedIn(['App\Http', 'App\Providers']);
 
         $this->expectations[] = expect('App\Http\Controllers')
-            ->not->toHavePublicMethodsBesides(['__construct', '__invoke', 'index', 'show', 'create', 'store', 'edit', 'update', 'destroy']);
+            ->not->toHavePublicMethodsBesides(['__construct', '__invoke', 'index', 'show', 'create', 'store', 'edit', 'update', 'destroy', 'middleware']);
 
         $this->expectations[] = expect([
             'dd',
@@ -159,5 +166,15 @@ final class Laravel extends AbstractPreset
             'exit',
             'ray',
         ])->not->toBeUsed();
+
+        $this->expectations[] = expect('App\Policies')
+            ->classes()
+            ->toHaveSuffix('Policy');
+
+        $this->expectations[] = expect('App\Attributes')
+            ->classes()
+            ->toImplement('Illuminate\Contracts\Container\ContextualAttribute')
+            ->toHaveAttribute('Attribute')
+            ->toHaveMethod('resolve');
     }
 }

src/ArchPresets/Security.php

@@ -32,7 +32,6 @@ final class Security extends AbstractPreset
             'create_function',
             'unserialize',
             'extract',
-            'parse_str',
             'mb_parse_str',
             'dl',
             'assert',

src/ArchPresets/Strict.php

@@ -21,6 +21,7 @@ final class Strict extends AbstractPreset
             fn (Expectation $namespace): ArchExpectation => $namespace->classes()->not->toHaveProtectedMethods(),
             fn (Expectation $namespace): ArchExpectation => $namespace->classes()->not->toBeAbstract(),
             fn (Expectation $namespace): ArchExpectation => $namespace->toUseStrictTypes(),
+            fn (Expectation $namespace): ArchExpectation => $namespace->toUseStrictEquality(),
             fn (Expectation $namespace): ArchExpectation => $namespace->classes()->toBeFinal(),
         );
 

src/Bootstrappers/BootExcludeList.php

@@ -17,7 +17,7 @@ final class BootExcludeList implements Bootstrapper
      *
      * @var array<int, non-empty-string>
      */
-    private const EXCLUDE_LIST = [
+    private const array EXCLUDE_LIST = [
         'bin',
         'overrides',
         'resources',

src/Bootstrappers/BootFiles.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace Pest\Bootstrappers;
 
 use Pest\Contracts\Bootstrapper;
+use Pest\Exceptions\FatalException;
 use Pest\Support\DatasetInfo;
 use Pest\Support\Str;
 use Pest\TestSuite;
@@ -24,7 +25,7 @@ final class BootFiles implements Bootstrapper
      *
      * @var array<int, string>
      */
-    private const STRUCTURE = [
+    private const array STRUCTURE = [
         'Expectations',
         'Expectations.php',
         'Helpers',
@@ -40,6 +41,10 @@ final class BootFiles implements Bootstrapper
         $rootPath = TestSuite::getInstance()->rootPath;
         $testsPath = $rootPath.DIRECTORY_SEPARATOR.testDirectory();
 
+        if (! is_dir($testsPath)) {
+            throw new FatalException(sprintf('The test directory [%s] does not exist.', $testsPath));
+        }
+
         foreach (self::STRUCTURE as $filename) {
             $filename = sprintf('%s%s%s', $testsPath, DIRECTORY_SEPARATOR, $filename);
 
@@ -78,7 +83,7 @@ final class BootFiles implements Bootstrapper
 
     private function bootDatasets(string $testsPath): void
     {
-        assert(strlen($testsPath) > 0);
+        assert($testsPath !== '');
 
         $files = (new PhpUnitFileIterator)->getFilesAsArray($testsPath, '.php');
 

src/Bootstrappers/BootOverrides.php

@@ -15,17 +15,18 @@ final class BootOverrides implements Bootstrapper
     /**
      * The list of files to be overridden.
      *
-     * @var array<string, string>
+     * @var array<int, string>
      */
-    public const FILES = [
-        'c96b1cb57d7fc8e649f4c13a8abe418c2541bcfab194fb6702b99f777f52ee84' => 'Runner/Filter/NameFilterIterator.php',
-        'a4a43de01f641c6944ee83d963795a46d32b5206b5ab3bbc6cce76e67190acbf' => 'Runner/ResultCache/DefaultResultCache.php',
-        'd0e81317889ad88c707db4b08a94cadee4c9010d05ff0a759f04e71af5efed89' => 'Runner/TestSuiteLoader.php',
-        '3bb609b0d3bf6dee8df8d6cd62a3c8ece823c4bb941eaaae39e3cb267171b9d2' => 'TextUI/Command/Commands/WarmCodeCoverageCacheCommand.php',
-        '8abdad6413329c6fe0d7d44a8b9926e390af32c0b3123f3720bb9c5bbc6fbb7e' => 'TextUI/Output/Default/ProgressPrinter/Subscriber/TestSkippedSubscriber.php',
-        '43883b7e5811886cf3731c8ed6304d5a77078d9731e1e505abc2da36bde19f3e' => 'TextUI/TestSuiteFilterProcessor.php',
-        '357d5cd7007f8559b26e1b8cdf43bb6fb15b51b79db981779da6f31b7ec39dad' => 'Event/Value/ThrowableBuilder.php',
-        '01974a686eba69b5fbb87a904d936eae2176e39567616898c5b758db71d87a22' => 'Logging/JUnit/JunitXmlLogger.php',
+    public const array FILES = [
+        'Runner/Filter/NameFilterIterator.php',
+        'Runner/ResultCache/DefaultResultCache.php',
+        'Runner/TestSuiteLoader.php',
+        'Runner/TestSuiteSorter.php',
+        'TextUI/Command/Commands/WarmCodeCoverageCacheCommand.php',
+        'TextUI/Output/Default/ProgressPrinter/Subscriber/TestSkippedSubscriber.php',
+        'TextUI/TestSuiteFilterProcessor.php',
+        'Event/Value/ThrowableBuilder.php',
+        'Logging/JUnit/JunitXmlLogger.php',
     ];
 
     /**

src/Bootstrappers/BootSubscribers.php

@@ -20,11 +20,21 @@ final readonly class BootSubscribers implements Bootstrapper
      *
      * @var array<int, class-string<Subscriber>>
      */
-    private const SUBSCRIBERS = [
+    private const array SUBSCRIBERS = [
         Subscribers\EnsureConfigurationIsAvailable::class,
         Subscribers\EnsureIgnorableTestCasesAreIgnored::class,
         Subscribers\EnsureKernelDumpIsFlushed::class,
         Subscribers\EnsureTeamCityEnabled::class,
+        Subscribers\EnsureTiaCoverageIsRecorded::class,
+        Subscribers\EnsureTiaCoverageIsFlushed::class,
+        Subscribers\EnsureTiaResultsAreCollected::class,
+        Subscribers\EnsureTiaResultIsRecordedOnPassed::class,
+        Subscribers\EnsureTiaResultIsRecordedOnFailed::class,
+        Subscribers\EnsureTiaResultIsRecordedOnErrored::class,
+        Subscribers\EnsureTiaResultIsRecordedOnSkipped::class,
+        Subscribers\EnsureTiaResultIsRecordedOnIncomplete::class,
+        Subscribers\EnsureTiaResultIsRecordedOnRisky::class,
+        Subscribers\EnsureTiaAssertionsAreRecordedOnFinished::class,
     ];
 
     /**

src/Concerns/Extendable.php

@@ -8,6 +8,8 @@ use Closure;
 
 /**
  * @internal
+ *
+ * @template T of object
  */
 trait Extendable
 {
@@ -20,6 +22,8 @@ trait Extendable
 
     /**
      * Register a new extend.
+     *
+     * @param-closure-this T $extend
      */
     public function extend(string $name, Closure $extend): void
     {

src/Concerns/Pipeable.php

@@ -66,6 +66,6 @@ trait Pipeable
      */
     private function pipes(string $name, object $context, string $scope): array
     {
-        return array_map(fn (Closure $pipe): \Closure => $pipe->bindTo($context, $scope), self::$pipes[$name] ?? []);
+        return array_map(fn (Closure $pipe): Closure => $pipe->bindTo($context, $scope), self::$pipes[$name] ?? []);
     }
 }

src/Concerns/Testable.php

@@ -6,12 +6,23 @@ namespace Pest\Concerns;
 
 use Closure;
 use Pest\Exceptions\DatasetArgumentsMismatch;
+use Pest\Panic;
+use Pest\Plugins\Tia;
+use Pest\Plugins\Tia\BladeEdges;
+use Pest\Plugins\Tia\InertiaEdges;
+use Pest\Plugins\Tia\Recorder;
+use Pest\Plugins\Tia\TableTracker;
 use Pest\Preset;
 use Pest\Support\ChainableClosure;
+use Pest\Support\Container;
 use Pest\Support\ExceptionTrace;
 use Pest\Support\Reflection;
+use Pest\Support\Shell;
 use Pest\TestSuite;
+use PHPUnit\Framework\AssertionFailedError;
 use PHPUnit\Framework\Attributes\PostCondition;
+use PHPUnit\Framework\IncompleteTest;
+use PHPUnit\Framework\SkippedTest;
 use PHPUnit\Framework\TestCase;
 use ReflectionException;
 use ReflectionFunction;
@@ -61,14 +72,22 @@ trait Testable
 
     /**
      * The test's describing, if any.
+     *
+     * @var array<int, string>
      */
-    public ?string $__describing = null;
+    public array $__describing = [];
 
     /**
      * Whether the test has ran or not.
      */
     public bool $__ran = false;
 
+    /**
+     * Set when a `BeforeEachable` plugin returns a cached success result.
+     * Checked in `__runTest` and `tearDown` to skip body + cleanup.
+     */
+    private bool $__cachedPass = false;
+
     /**
      * The test's test closure.
      */
@@ -99,27 +118,6 @@ trait Testable
      */
     private array $__snapshotChanges = [];
 
-    /**
-     * Creates a new Test Case instance.
-     */
-    public function __construct(string $name)
-    {
-        parent::__construct($name);
-
-        $test = TestSuite::getInstance()->tests->get(self::$__filename);
-
-        if ($test->hasMethod($name)) {
-            $method = $test->getMethod($name);
-            $this->__description = self::$__latestDescription = $method->description;
-            self::$__latestAssignees = $method->assignees;
-            self::$__latestNotes = $method->notes;
-            self::$__latestIssues = $method->issues;
-            self::$__latestPrs = $method->prs;
-            $this->__describing = $method->describing;
-            $this->__test = $method->getClosure($this);
-        }
-    }
-
     /**
      * Resets the test case static properties.
      */
@@ -146,7 +144,7 @@ trait Testable
      */
     public function __addBeforeAll(?Closure $hook): void
     {
-        if (! $hook instanceof \Closure) {
+        if (! $hook instanceof Closure) {
             return;
         }
 
@@ -160,7 +158,7 @@ trait Testable
      */
     public function __addAfterAll(?Closure $hook): void
     {
-        if (! $hook instanceof \Closure) {
+        if (! $hook instanceof Closure) {
             return;
         }
 
@@ -190,7 +188,7 @@ trait Testable
      */
     private function __addHook(string $property, ?Closure $hook): void
     {
-        if (! $hook instanceof \Closure) {
+        if (! $hook instanceof Closure) {
             return;
         }
 
@@ -212,7 +210,11 @@ trait Testable
             $beforeAll = ChainableClosure::boundStatically(self::$__beforeAll, $beforeAll);
         }
 
+        try {
             call_user_func(Closure::bind($beforeAll, null, self::class));
+        } catch (Throwable $e) {
+            Panic::with($e);
+        }
     }
 
     /**
@@ -238,6 +240,8 @@ trait Testable
     {
         TestSuite::getInstance()->test = $this;
 
+        $this->__cachedPass = false;
+
         $method = TestSuite::getInstance()->tests->get(self::$__filename)->getMethod($this->name());
 
         $description = $method->description;
@@ -270,8 +274,64 @@ trait Testable
         self::$__latestIssues = $method->issues;
         self::$__latestPrs = $method->prs;
 
+        // TIA replay short-circuit. Runs AFTER dataset/description/
+        // assignee metadata is populated so output and filtering still
+        // see the correct test name + tags on a cache hit, but BEFORE
+        // `parent::setUp()` and `beforeEach` so we skip the user's
+        // fixture setup (which is the whole point of replay — avoid
+        // paying for work whose outcome we already know).
+        /** @var Tia $tia */
+        $tia = Container::getInstance()->get(Tia::class);
+        $cached = $tia->getCachedResult(self::$__filename, $this::class.'::'.$this->name());
+
+        if ($cached !== null) {
+            if ($cached->isSuccess()) {
+                $this->__cachedPass = true;
+
+                return;
+            }
+
+            // Risky tests have no public PHPUnit hook to replay as-risky.
+            // Best available: short-circuit as a pass so the test doesn't
+            // misreport as a failure. Aggregate risky totals won't
+            // survive replay — accepted trade-off until PHPUnit grows a
+            // programmatic risky-marker API.
+            if ($cached->isRisky()) {
+                $this->__cachedPass = true;
+
+                return;
+            }
+
+            // Non-success: throw the matching PHPUnit exception. Runner
+            // catches it and marks the test with the correct status so
+            // skips, failures, incompletes and todos appear in output
+            // exactly as they did in the cached run.
+            if ($cached->isSkipped()) {
+                $this->markTestSkipped($cached->message());
+            }
+
+            if ($cached->isIncomplete()) {
+                $this->markTestIncomplete($cached->message());
+            }
+
+            throw new AssertionFailedError($cached->message() ?: 'Cached failure');
+        }
+
         parent::setUp();
 
+        // TIA blade-edge + table-edge recording (Laravel-only). Runs
+        // right after `parent::setUp()` so the Laravel app exists and
+        // the View / DB facades are bound; each arm call is
+        // idempotent against the current app instance so the 774-test
+        // suite doesn't stack 774 composers / listeners when Laravel
+        // keeps the same app across tests.
+        $recorder = Container::getInstance()->get(Recorder::class);
+        if ($recorder instanceof Recorder) {
+            BladeEdges::arm($recorder);
+            TableTracker::arm($recorder);
+            InertiaEdges::arm($recorder);
+        }
+
         $beforeEach = TestSuite::getInstance()->beforeEach->get(self::$__filename)[1];
 
         if ($this->__beforeEach instanceof Closure) {
@@ -281,11 +341,44 @@ trait Testable
         $this->__callClosure($beforeEach, $arguments);
     }
 
+    /**
+     * Initialize test case properties from TestSuite.
+     */
+    public function __initializeTestCase(): void
+    {
+        // Return if the test case has already been initialized
+        if (isset($this->__test)) {
+            return;
+        }
+
+        $name = $this->name();
+        $test = TestSuite::getInstance()->tests->get(self::$__filename);
+
+        if ($test->hasMethod($name)) {
+            $method = $test->getMethod($name);
+            $this->__description = self::$__latestDescription = $method->description;
+            self::$__latestAssignees = $method->assignees;
+            self::$__latestNotes = $method->notes;
+            self::$__latestIssues = $method->issues;
+            self::$__latestPrs = $method->prs;
+            $this->__describing = $method->describing;
+            $this->__test = $method->getClosure();
+
+            $method->setUp($this);
+        }
+    }
+
     /**
      * Gets executed after the Test Case.
      */
     protected function tearDown(...$arguments): void
     {
+        if ($this->__cachedPass) {
+            TestSuite::getInstance()->test = null;
+
+            return;
+        }
+
         $afterEach = TestSuite::getInstance()->afterEach->get(self::$__filename);
 
         if ($this->__afterEach instanceof Closure) {
@@ -298,6 +391,9 @@ trait Testable
             parent::tearDown();
 
             TestSuite::getInstance()->test = null;
+
+            $method = TestSuite::getInstance()->tests->get(self::$__filename)->getMethod($this->name());
+            $method->tearDown($this);
         }
     }
 
@@ -308,12 +404,98 @@ trait Testable
      */
     private function __runTest(Closure $closure, ...$args): mixed
     {
+        if ($this->__cachedPass) {
+            // Feed the exact assertion count captured during the recorded
+            // run so Pest's "Tests: N passed (M assertions)" banner stays
+            // accurate on replay instead of collapsing to 1-per-test.
+            /** @var Tia $tia */
+            $tia = Container::getInstance()->get(Tia::class);
+            $assertions = $tia->getCachedAssertions($this::class.'::'.$this->name());
+
+            $this->addToAssertionCount($assertions);
+
+            return null;
+        }
+
         $arguments = $this->__resolveTestArguments($args);
         $this->__ensureDatasetArgumentNameAndNumberMatches($arguments);
 
+        $method = TestSuite::getInstance()->tests->get(self::$__filename)->getMethod($this->name());
+
+        if ($method->flakyTries === null) {
             return $this->__callClosure($closure, $arguments);
         }
 
+        $lastException = null;
+        $initialProperties = get_object_vars($this);
+
+        for ($attempt = 1; $attempt <= $method->flakyTries; $attempt++) {
+            try {
+                return $this->__callClosure($closure, $arguments);
+            } catch (Throwable $e) {
+                if ($e instanceof SkippedTest
+                    || $e instanceof IncompleteTest
+                    || $this->__isExpectedException($e)) {
+                    throw $e;
+                }
+
+                $lastException = $e;
+
+                if ($attempt < $method->flakyTries) {
+                    if ($this->__snapshotChanges !== []) {
+                        throw $e;
+                    }
+
+                    $this->tearDown();
+
+                    Closure::bind(fn (): array => $this->mockObjects = [], $this, TestCase::class)();
+
+                    foreach (array_keys(array_diff_key(get_object_vars($this), $initialProperties)) as $property) {
+                        unset($this->{$property});
+                    }
+
+                    $hasOutputExpectation = Closure::bind(fn (): bool => is_string($this->outputExpectedString) || is_string($this->outputExpectedRegex), $this, TestCase::class)();
+
+                    if ($hasOutputExpectation) {
+                        ob_clean();
+                    }
+
+                    $this->setUp();
+                }
+            }
+        }
+
+        throw $lastException;
+    }
+
+    /**
+     * Determines if the given exception matches PHPUnit's expected exception.
+     */
+    private function __isExpectedException(Throwable $e): bool
+    {
+        $read = fn (string $property): mixed => Closure::bind(fn () => $this->{$property}, $this, TestCase::class)();
+
+        $expectedClass = $read('expectedException');
+
+        if ($expectedClass !== null) {
+            return $e instanceof $expectedClass;
+        }
+
+        $expectedMessage = $read('expectedExceptionMessage');
+
+        if ($expectedMessage !== null) {
+            return str_contains($e->getMessage(), (string) $expectedMessage);
+        }
+
+        $expectedCode = $read('expectedExceptionCode');
+
+        if ($expectedCode !== null) {
+            return $e->getCode() === $expectedCode;
+        }
+
+        return false;
+    }
+
     /**
      * Resolve the passed arguments. Any Closures will be bound to the testcase and resolved.
      *
@@ -333,7 +515,8 @@ trait Testable
         }
 
         $underlyingTest = Reflection::getFunctionVariable($this->__test, 'closure');
-        $testParameterTypes = array_values(Reflection::getFunctionArguments($underlyingTest));
+        $testParameterTypesByName = Reflection::getFunctionArguments($underlyingTest);
+        $testParameterTypes = array_values($testParameterTypesByName);
 
         if (count($arguments) !== 1) {
             foreach ($arguments as $argumentIndex => $argumentValue) {
@@ -341,7 +524,11 @@ trait Testable
                     continue;
                 }
 
-                if (in_array($testParameterTypes[$argumentIndex], [Closure::class, 'callable', 'mixed'])) {
+                $parameterType = is_string($argumentIndex)
+                    ? $testParameterTypesByName[$argumentIndex]
+                    : $testParameterTypes[$argumentIndex];
+
+                if (in_array($parameterType, [Closure::class, 'callable', 'mixed'])) {
                     continue;
                 }
 
@@ -367,7 +554,7 @@ trait Testable
             return [$boundDatasetResult];
         }
 
-        return array_values($boundDatasetResult);
+        return $boundDatasetResult;
     }
 
     /**
@@ -392,11 +579,12 @@ trait Testable
             fn (ReflectionParameter $reflectionParameter): string => $reflectionParameter->getName(),
             array_filter($testReflection->getParameters(), fn (ReflectionParameter $reflectionParameter): bool => ! $reflectionParameter->isOptional()),
         );
+
         if (array_diff($testParameterNames, $datasetParameterNames) === []) {
             return;
         }
-        if (isset($testParameterNames[0])
-        && $suppliedParametersCount >= $requiredParametersCount) {
+
+        if (isset($testParameterNames[0]) && $suppliedParametersCount >= $requiredParametersCount) {
             return;
         }
 
@@ -426,15 +614,7 @@ trait Testable
             return;
         }
 
-        if (count($this->__snapshotChanges) === 1) {
-            $this->markTestIncomplete($this->__snapshotChanges[0]);
-
-            return;
-        }
-
-        $messages = implode(PHP_EOL, array_map(static fn (string $message): string => '- $message', $this->__snapshotChanges));
-
-        $this->markTestIncomplete($messages);
+        $this->markTestIncomplete(implode('. ', $this->__snapshotChanges));
     }
 
     /**
@@ -458,7 +638,7 @@ trait Testable
      */
     public static function getLatestPrintableTestCaseMethodName(): string
     {
-        return self::$__latestDescription;
+        return self::$__latestDescription ?? '';
     }
 
     /**
@@ -473,4 +653,12 @@ trait Testable
             'notes' => self::$__latestNotes,
         ];
     }
+
+    /**
+     * Opens a shell for the test case.
+     */
+    public function shell(): void
+    {
+        Shell::open();
+    }
 }

src/Configuration.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace Pest;
 
+use Pest\PendingCalls\BeforeEachCall;
 use Pest\PendingCalls\UsesCall;
 
 /**
@@ -62,6 +63,14 @@ final readonly class Configuration
         return (new UsesCall($this->filename, []))->group(...$groups);
     }
 
+    /**
+     * Marks all tests in the current file to be run exclusively.
+     */
+    public function only(): void
+    {
+        (new BeforeEachCall(TestSuite::getInstance(), $this->filename))->only();
+    }
+
     /**
      * Depending on where is called, it will extend the given classes and traits globally or locally.
      */
@@ -102,6 +111,22 @@ final readonly class Configuration
         return Configuration\Project::getInstance();
     }
 
+    /**
+     * Gets the browser configuration.
+     */
+    public function browser(): Browser\Configuration
+    {
+        return new Browser\Configuration;
+    }
+
+    /**
+     * Gets the TIA (Test Impact Analysis) configuration.
+     */
+    public function tia(): Plugins\Tia\Configuration
+    {
+        return new Plugins\Tia\Configuration;
+    }
+
     /**
      * Proxies calls to the uses method.
      *

src/Configuration/Project.php

@@ -89,7 +89,7 @@ final class Project
     {
         $this->issues = "https://{$namespace}.atlassian.net/browse/{$project}-%s";
 
-        $this->assignees = "https://{$namespace}.atlassian.net/secure/ViewProfile?name=%s";
+        $this->assignees = "https://{$namespace}.atlassian.net/secure/ViewProfile.jspa?name=%s";
 
         return $this;
     }

src/Console/Help.php

@@ -16,7 +16,7 @@ final readonly class Help
      *
      * @var array<int, string>
      */
-    private const HELP_MESSAGES = [
+    private const array HELP_MESSAGES = [
         '<comment>Pest Options:</comment>',
         '  <info>--init</info>                      Initialise a standard Pest configuration',
         '  <info>--coverage</info>                  Enable coverage and output to standard output',

src/Console/Thanks.php

@@ -22,10 +22,14 @@ final readonly class Thanks
      *
      * @var array<string, string>
      */
-    private const FUNDING_MESSAGES = [
+    private const array FUNDING_MESSAGES = [
         'Star' => 'https://github.com/pestphp/pest',
-        'News' => 'https://twitter.com/pestphp',
-        'Videos' => 'https://youtube.com/@nunomaduro',
+        'YouTube' => 'https://youtube.com/@nunomaduro',
+        'TikTok' => 'https://tiktok.com/@enunomaduro',
+        'Twitch' => 'https://twitch.tv/nunomaduro',
+        'LinkedIn' => 'https://linkedin.com/in/nunomaduro',
+        'Instagram' => 'https://instagram.com/enunomaduro',
+        'X' => 'https://x.com/enunomaduro',
         'Sponsor' => 'https://github.com/sponsors/nunomaduro',
     ];
 

src/Exceptions/DatasetMissing.php

@@ -22,7 +22,7 @@ final class DatasetMissing extends BadFunctionCallException implements Exception
     public function __construct(string $file, string $name, array $arguments)
     {
         parent::__construct(sprintf(
-            "A test with the description '%s' has %d argument(s) ([%s]) and no dataset(s) provided in %s",
+            'A test with the description [%s] has [%d] argument(s) ([%s]) and no dataset(s) provided in [%s]',
             $name,
             count($arguments),
             implode(', ', array_map(static fn (string $arg, string $type): string => sprintf('%s $%s', $type, $arg), array_keys($arguments), $arguments)),

src/Exceptions/ShouldNotHappen.php

@@ -20,7 +20,7 @@ final class ShouldNotHappen extends RuntimeException
         $message = $exception->getMessage();
 
         parent::__construct(sprintf(<<<'EOF'
-This should not happen - please create an new issue here: https://github.com/pestphp/pest.
+This should not happen - please create an new issue here: https://github.com/pestphp/pest/issues
 
   Issue: %s
   PHP version: %s

src/Exceptions/TestCaseAlreadyInUse.php

@@ -19,7 +19,11 @@ final class TestCaseAlreadyInUse extends InvalidArgumentException implements Exc
      */
     public function __construct(string $inUse, string $newOne, string $folder)
     {
-        parent::__construct(sprintf('Test case `%s` can not be used. The folder `%s` already uses the test case `%s`',
-            $newOne, $folder, $inUse));
+        parent::__construct(sprintf(
+            'Test case [%s] can not be used. The folder [%s] already uses the test case [%s].',
+            $newOne,
+            $folder,
+            $inUse,
+        ));
     }
 }

src/Exceptions/TestClosureMustNotBeStatic.php

@@ -22,7 +22,7 @@ final class TestClosureMustNotBeStatic extends InvalidArgumentException implemen
     {
         parent::__construct(
             sprintf(
-                'Test closure must not be static. Please remove the `static` keyword from the `%s` method in `%s`.',
+                'Test closure must not be static. Please remove the [static] keyword from the [%s] method in [%s].',
                 $method->description,
                 $method->filename
             )

src/Expectation.php

@@ -18,6 +18,7 @@ use Pest\Arch\Expectations\ToOnlyUse;
 use Pest\Arch\Expectations\ToUse;
 use Pest\Arch\Expectations\ToUseNothing;
 use Pest\Arch\PendingArchExpectation;
+use Pest\Arch\Support\Composer;
 use Pest\Arch\Support\FileLineFinder;
 use Pest\Concerns\Extendable;
 use Pest\Concerns\Pipeable;
@@ -52,7 +53,9 @@ use ReflectionProperty;
  */
 final class Expectation
 {
+    /** @use Extendable<self<TValue>> */
     use Extendable;
+
     use Pipeable;
     use Retrievable;
 
@@ -134,7 +137,7 @@ final class Expectation
     /**
      * Dump the expectation value when the result of the condition is truthy.
      *
-     * @param  (\Closure(TValue): bool)|bool  $condition
+     * @param  (Closure(TValue): bool)|bool  $condition
      * @return self<TValue>
      */
     public function ddWhen(Closure|bool $condition, mixed ...$arguments): Expectation
@@ -151,7 +154,7 @@ final class Expectation
     /**
      * Dump the expectation value when the result of the condition is falsy.
      *
-     * @param  (\Closure(TValue): bool)|bool  $condition
+     * @param  (Closure(TValue): bool)|bool  $condition
      * @return self<TValue>
      */
     public function ddUnless(Closure|bool $condition, mixed ...$arguments): Expectation
@@ -223,7 +226,7 @@ final class Expectation
             throw new BadMethodCallException('Expectation value is not iterable.');
         }
 
-        if (count($callbacks) == 0) {
+        if ($callbacks === []) {
             throw new InvalidArgumentException('No sequence expectations defined.');
         }
 
@@ -264,7 +267,7 @@ final class Expectation
         $matched = false;
 
         foreach ($expressions as $key => $callback) {
-            if ($subject != $key) {
+            if ($subject != $key) { // @pest-arch-ignore-line
                 continue;
             }
 
@@ -330,7 +333,7 @@ final class Expectation
      * @param  array<int, mixed>  $parameters
      * @return Expectation<TValue>|HigherOrderExpectation<Expectation<TValue>, TValue>
      */
-    public function __call(string $method, array $parameters): Expectation|HigherOrderExpectation|PendingArchExpectation
+    public function __call(string $method, array $parameters): Expectation|HigherOrderExpectation|PendingArchExpectation|ArchExpectation
     {
         if (! self::hasMethod($method)) {
             if (! is_object($this->value) && method_exists(PendingArchExpectation::class, $method)) {
@@ -355,6 +358,10 @@ final class Expectation
         $reflectionClosure = new \ReflectionFunction($closure);
         $expectation = $reflectionClosure->getClosureThis();
 
+        if ($reflectionClosure->getReturnType()?->__toString() === ArchExpectation::class) {
+            return $closure(...$parameters);
+        }
+
         assert(is_object($expectation));
 
         ExpectationPipeline::for($closure)
@@ -380,7 +387,7 @@ final class Expectation
         if (self::hasExtend($name)) {
             $extend = self::$extends[$name]->bindTo($this, Expectation::class);
 
-            if ($extend != false) {
+            if ($extend != false) { // @pest-arch-ignore-line
                 return $extend;
             }
         }
@@ -393,7 +400,7 @@ final class Expectation
      *
      * @return Expectation<TValue>|OppositeExpectation<TValue>|EachExpectation<TValue>|HigherOrderExpectation<Expectation<TValue>, TValue|null>|TValue
      */
-    public function __get(string $name)
+    public function __get(string $name): mixed
     {
         if (! self::hasMethod($name)) {
             if (! is_object($this->value) && method_exists(PendingArchExpectation::class, $name)) {
@@ -509,12 +516,25 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => (bool) preg_match('/^<\?php\s+declare\(.*?strict_types\s?=\s?1.*?\);/', (string) file_get_contents($object->path)),
+            fn (ObjectDescription $object): bool => (bool) preg_match('/^<\?php\s*(\/\*[\s\S]*?\*\/|\/\/[^\r\n]*(?:\r?\n|$)|\s)*declare\s*\(\s*strict_types\s*=\s*1\s*\)\s*;/m', (string) file_get_contents($object->path)),
             'to use strict types',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, '<?php')),
         );
     }
 
+    /**
+     * Asserts that the given expectation target uses strict equality.
+     */
+    public function toUseStrictEquality(): ArchExpectation
+    {
+        return Targeted::make(
+            $this,
+            fn (ObjectDescription $object): bool => ! str_contains((string) file_get_contents($object->path), ' == ') && ! str_contains((string) file_get_contents($object->path), ' != '),
+            'to use strict equality',
+            FileLineFinder::where(fn (string $line): bool => str_contains($line, ' == ') || str_contains($line, ' != ')),
+        );
+    }
+
     /**
      * Asserts that the given expectation target is final.
      */
@@ -522,7 +542,7 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => ! enum_exists($object->name) && $object->reflectionClass->isFinal(),
+            fn (ObjectDescription $object): bool => ! enum_exists($object->name) && isset($object->reflectionClass) && $object->reflectionClass->isFinal(),
             'to be final',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -535,7 +555,7 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => ! enum_exists($object->name) && $object->reflectionClass->isReadOnly() && assert(true), // @phpstan-ignore-line
+            fn (ObjectDescription $object): bool => ! enum_exists($object->name) && isset($object->reflectionClass) && $object->reflectionClass->isReadOnly() && assert(true), // @phpstan-ignore-line
             'to be readonly',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -548,7 +568,7 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => $object->reflectionClass->isTrait(),
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) && $object->reflectionClass->isTrait(),
             'to be trait',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -569,7 +589,7 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => $object->reflectionClass->isAbstract(),
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) && $object->reflectionClass->isAbstract(),
             'to be abstract',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -586,7 +606,7 @@ final class Expectation
 
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => count(array_filter($methods, fn (string $method): bool => $object->reflectionClass->hasMethod($method))) === count($methods),
+            fn (ObjectDescription $object): bool => count(array_filter($methods, fn (string $method): bool => isset($object->reflectionClass) && $object->reflectionClass->hasMethod($method))) === count($methods),
             sprintf("to have method '%s'", implode("', '", $methods)),
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -650,6 +670,41 @@ final class Expectation
         throw InvalidExpectation::fromMethods(['toHavePrivateMethods']);
     }
 
+    /**
+     * Asserts that the given expectation target is cased correctly.
+     */
+    public function toBeCasedCorrectly(): ArchExpectation
+    {
+        return Targeted::make(
+            $this,
+            function (ObjectDescription $object): bool {
+                if (! isset($object->reflectionClass)) {
+                    return false;
+                }
+
+                $realPath = realpath($object->path);
+
+                if ($realPath === false) {
+                    return false;
+                }
+
+                foreach (Composer::allNamespacesWithDirectories() as $directory => $namespace) {
+                    if (str_starts_with($realPath, $directory)) {
+                        $relativePath = substr($realPath, strlen($directory) + 1);
+                        $relativePath = explode('.', $relativePath)[0];
+                        $classFromPath = $namespace.'\\'.str_replace(DIRECTORY_SEPARATOR, '\\', $relativePath);
+
+                        return $classFromPath === $object->reflectionClass->getName();
+                    }
+                }
+
+                return false;
+            },
+            'to be cased correctly',
+            FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
+        );
+    }
+
     /**
      * Asserts that the given expectation target is enum.
      */
@@ -657,7 +712,7 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => $object->reflectionClass->isEnum(),
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) && $object->reflectionClass->isEnum(),
             'to be enum',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -699,7 +754,7 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => $object->reflectionClass->isInterface(),
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) && $object->reflectionClass->isInterface(),
             'to be interface',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -720,7 +775,7 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => $class === $object->reflectionClass->getName() || $object->reflectionClass->isSubclassOf($class),
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) && ($class === $object->reflectionClass->getName() || $object->reflectionClass->isSubclassOf($class)),
             sprintf("to extend '%s'", $class),
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -760,7 +815,26 @@ final class Expectation
             $this,
             function (ObjectDescription $object) use ($traits): bool {
                 foreach ($traits as $trait) {
-                    if (! in_array($trait, $object->reflectionClass->getTraitNames(), true)) {
+                    if (isset($object->reflectionClass) === false) {
+                        return false;
+                    }
+
+                    $currentClass = $object->reflectionClass;
+                    $usedTraits = [];
+
+                    do {
+                        $classTraits = $currentClass->getTraits();
+                        foreach ($classTraits as $traitReflection) {
+                            $usedTraits[$traitReflection->getName()] = $traitReflection->getName();
+
+                            $nestedTraits = $traitReflection->getTraits();
+                            foreach ($nestedTraits as $nestedTrait) {
+                                $usedTraits[$nestedTrait->getName()] = $nestedTrait->getName();
+                            }
+                        }
+                    } while ($currentClass = $currentClass->getParentClass());
+
+                    if (! array_key_exists($trait, $usedTraits)) {
                         return false;
                     }
                 }
@@ -779,7 +853,7 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => $object->reflectionClass->getInterfaceNames() === [],
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) && $object->reflectionClass->getInterfaceNames() === [],
             'to implement nothing',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -796,7 +870,8 @@ final class Expectation
 
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => count($interfaces) === count($object->reflectionClass->getInterfaceNames())
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass)
+                && (count($interfaces) === count($object->reflectionClass->getInterfaceNames()))
                 && array_diff($interfaces, $object->reflectionClass->getInterfaceNames()) === [],
             "to only implement '".implode("', '", $interfaces)."'",
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
@@ -810,7 +885,7 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => str_starts_with($object->reflectionClass->getShortName(), $prefix),
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) && str_starts_with($object->reflectionClass->getShortName(), $prefix),
             "to have prefix '{$prefix}'",
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -823,7 +898,7 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => str_ends_with($object->reflectionClass->getName(), $suffix),
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) && str_ends_with($object->reflectionClass->getName(), $suffix),
             "to have suffix '{$suffix}'",
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -842,7 +917,7 @@ final class Expectation
             $this,
             function (ObjectDescription $object) use ($interfaces): bool {
                 foreach ($interfaces as $interface) {
-                    if (! $object->reflectionClass->implementsInterface($interface)) {
+                    if (! isset($object->reflectionClass) || ! $object->reflectionClass->implementsInterface($interface)) {
                         return false;
                     }
                 }
@@ -872,6 +947,14 @@ final class Expectation
         return ToUseNothing::make($this);
     }
 
+    /**
+     * Asserts that the source code of the given expectation target does not include suspicious characters.
+     */
+    public function toHaveSuspiciousCharacters(): ArchExpectation
+    {
+        throw InvalidExpectation::fromMethods(['toHaveSuspiciousCharacters']);
+    }
+
     /**
      * Not supported.
      */
@@ -915,7 +998,7 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => $object->reflectionClass->hasMethod('__invoke'),
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) && $object->reflectionClass->hasMethod('__invoke'),
             'to be invokable',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class'))
         );
@@ -1024,7 +1107,7 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => $object->reflectionClass->getAttributes($attribute) !== [],
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) && $object->reflectionClass->getAttributes($attribute) !== [],
             "to have attribute '{$attribute}'",
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -1053,7 +1136,8 @@ final class Expectation
     {
         return Targeted::make(
             $this,
-            fn (ObjectDescription $object): bool => $object->reflectionClass->isEnum()
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass)
+                && $object->reflectionClass->isEnum()
                 && (new ReflectionEnum($object->name))->isBacked() // @phpstan-ignore-line
                 && (string) (new ReflectionEnum($object->name))->getBackingType() === $backingType, // @phpstan-ignore-line
             'to be '.$backingType.' backed enum',

src/Expectations/OppositeExpectation.php

@@ -15,6 +15,7 @@ use Pest\Arch\PendingArchExpectation;
 use Pest\Arch\SingleArchExpectation;
 use Pest\Arch\Support\FileLineFinder;
 use Pest\Exceptions\InvalidExpectation;
+use Pest\Exceptions\MissingDependency;
 use Pest\Expectation;
 use Pest\Support\Arr;
 use Pest\Support\Exporter;
@@ -24,6 +25,7 @@ use PHPUnit\Framework\AssertionFailedError;
 use PHPUnit\Framework\ExpectationFailedException;
 use ReflectionMethod;
 use ReflectionProperty;
+use Spoofchecker;
 use stdClass;
 
 /**
@@ -74,7 +76,10 @@ final readonly class OppositeExpectation
      */
     public function toUse(array|string $targets): ArchExpectation
     {
-        return GroupArchExpectation::fromExpectations($this->original, array_map(fn (string $target): SingleArchExpectation => ToUse::make($this->original, $target)->opposite(
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
+        return GroupArchExpectation::fromExpectations($original, array_map(fn (string $target): SingleArchExpectation => ToUse::make($original, $target)->opposite(
             fn () => $this->throwExpectationFailedException('toUse', $target),
         ), is_string($targets) ? [$targets] : $targets));
     }
@@ -84,8 +89,11 @@ final readonly class OppositeExpectation
      */
     public function toHaveFileSystemPermissions(string $permissions): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
+            $original,
             fn (ObjectDescription $object): bool => substr(sprintf('%o', fileperms($object->path)), -4) !== $permissions,
             sprintf('permissions not to be [%s]', $permissions),
             FileLineFinder::where(fn (string $line): bool => str_contains($line, '<?php')),
@@ -105,8 +113,11 @@ final readonly class OppositeExpectation
      */
     public function toHaveMethodsDocumented(): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
+            $original,
             fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false
                 || array_filter(
                     Reflection::getMethodsFromReflectionClass($object->reflectionClass),
@@ -124,8 +135,11 @@ final readonly class OppositeExpectation
      */
     public function toHavePropertiesDocumented(): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
+            $original,
             fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false
                 || array_filter(
                     Reflection::getPropertiesFromReflectionClass($object->reflectionClass),
@@ -144,22 +158,44 @@ final readonly class OppositeExpectation
      */
     public function toUseStrictTypes(): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
+            $original,
             fn (ObjectDescription $object): bool => ! (bool) preg_match('/^<\?php\s+declare\(.*?strict_types\s?=\s?1.*?\);/', (string) file_get_contents($object->path)),
             'not to use strict types',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, '<?php')),
         );
     }
 
+    /**
+     * Asserts that the given expectation target does not use the strict equality operator.
+     */
+    public function toUseStrictEquality(): ArchExpectation
+    {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
+        return Targeted::make(
+            $original,
+            fn (ObjectDescription $object): bool => ! str_contains((string) file_get_contents($object->path), ' === ') && ! str_contains((string) file_get_contents($object->path), ' !== '),
+            'to use strict equality',
+            FileLineFinder::where(fn (string $line): bool => str_contains($line, ' === ') || str_contains($line, ' !== ')),
+        );
+    }
+
     /**
      * Asserts that the given expectation target is not final.
      */
     public function toBeFinal(): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => ! enum_exists($object->name) && ! $object->reflectionClass->isFinal(),
+            $original,
+            fn (ObjectDescription $object): bool => ! enum_exists($object->name) && (isset($object->reflectionClass) === false || ! $object->reflectionClass->isFinal()),
             'not to be final',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -170,9 +206,12 @@ final readonly class OppositeExpectation
      */
     public function toBeReadonly(): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => ! enum_exists($object->name) && ! $object->reflectionClass->isReadOnly() && assert(true), // @phpstan-ignore-line
+            $original,
+            fn (ObjectDescription $object): bool => ! enum_exists($object->name) && (isset($object->reflectionClass) === false || ! $object->reflectionClass->isReadOnly()) && assert(true), // @phpstan-ignore-line
             'not to be readonly',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -183,9 +222,12 @@ final readonly class OppositeExpectation
      */
     public function toBeTrait(): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => ! $object->reflectionClass->isTrait(),
+            $original,
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false || ! $object->reflectionClass->isTrait(),
             'not to be trait',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -204,9 +246,12 @@ final readonly class OppositeExpectation
      */
     public function toBeAbstract(): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => ! $object->reflectionClass->isAbstract(),
+            $original,
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false || ! $object->reflectionClass->isAbstract(),
             'not to be abstract',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -221,17 +266,42 @@ final readonly class OppositeExpectation
     {
         $methods = is_array($method) ? $method : [$method];
 
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
+            $original,
             fn (ObjectDescription $object): bool => array_filter(
                 $methods,
-                fn (string $method): bool => $object->reflectionClass->hasMethod($method),
+                fn (string $method): bool => isset($object->reflectionClass) === false || $object->reflectionClass->hasMethod($method),
             ) === [],
             'to not have methods: '.implode(', ', $methods),
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
     }
 
+    /**
+     * Asserts that the given expectation target does not have suspicious characters.
+     */
+    public function toHaveSuspiciousCharacters(): ArchExpectation
+    {
+        if (! class_exists(Spoofchecker::class)) {
+            throw new MissingDependency(__FUNCTION__, 'ext-intl >= 2.0');
+        }
+
+        $checker = new Spoofchecker;
+
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
+        return Targeted::make(
+            $original,
+            fn (ObjectDescription $object): bool => ! $checker->isSuspicious((string) file_get_contents($object->path)),
+            'to not include suspicious characters',
+            FileLineFinder::where(fn (string $line): bool => $checker->isSuspicious($line)),
+        );
+    }
+
     /**
      * Asserts that the given expectation target does not have the given methods.
      *
@@ -253,8 +323,11 @@ final readonly class OppositeExpectation
 
         $state = new stdClass;
 
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
+            $original,
             function (ObjectDescription $object) use ($methods, &$state): bool {
                 $reflectionMethods = isset($object->reflectionClass)
                     ? Reflection::getMethodsFromReflectionClass($object->reflectionClass, ReflectionMethod::IS_PUBLIC)
@@ -273,7 +346,7 @@ final readonly class OppositeExpectation
             $methods === []
                 ? 'not to have public methods'
                 : sprintf("not to have public methods besides '%s'", implode("', '", $methods)),
-            FileLineFinder::where(fn (string $line): bool => str_contains($line, $state->contains)),
+            FileLineFinder::where(fn (string $line): bool => str_contains($line, (string) $state->contains)),
         );
     }
 
@@ -296,8 +369,11 @@ final readonly class OppositeExpectation
 
         $state = new stdClass;
 
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
+            $original,
             function (ObjectDescription $object) use ($methods, &$state): bool {
                 $reflectionMethods = isset($object->reflectionClass)
                     ? Reflection::getMethodsFromReflectionClass($object->reflectionClass, ReflectionMethod::IS_PROTECTED)
@@ -316,7 +392,7 @@ final readonly class OppositeExpectation
             $methods === []
                 ? 'not to have protected methods'
                 : sprintf("not to have protected methods besides '%s'", implode("', '", $methods)),
-            FileLineFinder::where(fn (string $line): bool => str_contains($line, $state->contains)),
+            FileLineFinder::where(fn (string $line): bool => str_contains($line, (string) $state->contains)),
         );
     }
 
@@ -339,8 +415,11 @@ final readonly class OppositeExpectation
 
         $state = new stdClass;
 
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
+            $original,
             function (ObjectDescription $object) use ($methods, &$state): bool {
                 $reflectionMethods = isset($object->reflectionClass)
                     ? Reflection::getMethodsFromReflectionClass($object->reflectionClass, ReflectionMethod::IS_PRIVATE)
@@ -359,7 +438,7 @@ final readonly class OppositeExpectation
             $methods === []
                 ? 'not to have private methods'
                 : sprintf("not to have private methods besides '%s'", implode("', '", $methods)),
-            FileLineFinder::where(fn (string $line): bool => str_contains($line, $state->contains)),
+            FileLineFinder::where(fn (string $line): bool => str_contains($line, (string) $state->contains)),
         );
     }
 
@@ -376,9 +455,12 @@ final readonly class OppositeExpectation
      */
     public function toBeEnum(): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => ! $object->reflectionClass->isEnum(),
+            $original,
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false || ! $object->reflectionClass->isEnum(),
             'not to be enum',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -397,8 +479,11 @@ final readonly class OppositeExpectation
      */
     public function toBeClass(): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
+            $original,
             fn (ObjectDescription $object): bool => ! class_exists($object->name),
             'not to be class',
             FileLineFinder::where(fn (string $line): bool => true),
@@ -418,9 +503,12 @@ final readonly class OppositeExpectation
      */
     public function toBeInterface(): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => ! $object->reflectionClass->isInterface(),
+            $original,
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false || ! $object->reflectionClass->isInterface(),
             'not to be interface',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -439,9 +527,12 @@ final readonly class OppositeExpectation
      */
     public function toExtend(string $class): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => ! $object->reflectionClass->isSubclassOf($class),
+            $original,
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false || ! $object->reflectionClass->isSubclassOf($class),
             sprintf("not to extend '%s'", $class),
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -452,9 +543,12 @@ final readonly class OppositeExpectation
      */
     public function toExtendNothing(): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => $object->reflectionClass->getParentClass() !== false,
+            $original,
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false || $object->reflectionClass->getParentClass() !== false,
             'to extend a class',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -477,11 +571,14 @@ final readonly class OppositeExpectation
     {
         $traits = is_array($traits) ? $traits : [$traits];
 
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
+            $original,
             function (ObjectDescription $object) use ($traits): bool {
                 foreach ($traits as $trait) {
-                    if (in_array($trait, $object->reflectionClass->getTraitNames(), true)) {
+                    if (isset($object->reflectionClass) && in_array($trait, $object->reflectionClass->getTraitNames(), true)) {
                         return false;
                     }
                 }
@@ -502,11 +599,14 @@ final readonly class OppositeExpectation
     {
         $interfaces = is_array($interfaces) ? $interfaces : [$interfaces];
 
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
+            $original,
             function (ObjectDescription $object) use ($interfaces): bool {
                 foreach ($interfaces as $interface) {
-                    if ($object->reflectionClass->implementsInterface($interface)) {
+                    if (isset($object->reflectionClass) && $object->reflectionClass->implementsInterface($interface)) {
                         return false;
                     }
                 }
@@ -523,9 +623,12 @@ final readonly class OppositeExpectation
      */
     public function toImplementNothing(): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => $object->reflectionClass->getInterfaceNames() !== [],
+            $original,
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false || $object->reflectionClass->getInterfaceNames() !== [],
             'to implement an interface',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -544,9 +647,12 @@ final readonly class OppositeExpectation
      */
     public function toHavePrefix(string $prefix): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => ! str_starts_with($object->reflectionClass->getShortName(), $prefix),
+            $original,
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false || ! str_starts_with($object->reflectionClass->getShortName(), $prefix),
             "not to have prefix '{$prefix}'",
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -557,9 +663,12 @@ final readonly class OppositeExpectation
      */
     public function toHaveSuffix(string $suffix): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => ! str_ends_with($object->reflectionClass->getName(), $suffix),
+            $original,
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false || ! str_ends_with($object->reflectionClass->getName(), $suffix),
             "not to have suffix '{$suffix}'",
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class')),
         );
@@ -586,7 +695,10 @@ final readonly class OppositeExpectation
      */
     public function toBeUsed(): ArchExpectation
     {
-        return ToBeUsedInNothing::make($this->original);
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
+        return ToBeUsedInNothing::make($original);
     }
 
     /**
@@ -596,7 +708,10 @@ final readonly class OppositeExpectation
      */
     public function toBeUsedIn(array|string $targets): ArchExpectation
     {
-        return GroupArchExpectation::fromExpectations($this->original, array_map(fn (string $target): GroupArchExpectation => ToBeUsedIn::make($this->original, $target)->opposite(
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
+        return GroupArchExpectation::fromExpectations($original, array_map(fn (string $target): GroupArchExpectation => ToBeUsedIn::make($original, $target)->opposite(
             fn () => $this->throwExpectationFailedException('toBeUsedIn', $target),
         ), is_string($targets) ? [$targets] : $targets));
     }
@@ -619,9 +734,12 @@ final readonly class OppositeExpectation
      */
     public function toBeInvokable(): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => ! $object->reflectionClass->hasMethod('__invoke'),
+            $original,
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false || ! $object->reflectionClass->hasMethod('__invoke'),
             'to not be invokable',
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class'))
         );
@@ -632,9 +750,12 @@ final readonly class OppositeExpectation
      */
     public function toHaveAttribute(string $attribute): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => $object->reflectionClass->getAttributes($attribute) === [],
+            $original,
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false || $object->reflectionClass->getAttributes($attribute) === [],
             "to not have attribute '{$attribute}'",
             FileLineFinder::where(fn (string $line): bool => str_contains($line, 'class'))
         );
@@ -724,9 +845,13 @@ final readonly class OppositeExpectation
      */
     private function toBeBackedEnum(string $backingType): ArchExpectation
     {
+        /** @var Expectation<array<int, string>|string> $original */
+        $original = $this->original;
+
         return Targeted::make(
-            $this->original,
-            fn (ObjectDescription $object): bool => ! $object->reflectionClass->isEnum()
+            $original,
+            fn (ObjectDescription $object): bool => isset($object->reflectionClass) === false
+                || ! $object->reflectionClass->isEnum()
                 || ! (new \ReflectionEnum($object->name))->isBacked() // @phpstan-ignore-line
                 || (string) (new \ReflectionEnum($object->name))->getBackingType() !== $backingType, // @phpstan-ignore-line
             'not to be '.$backingType.' backed enum',

src/Factories/Covers/CoversNothing.php

@@ -1,10 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Pest\Factories\Covers;
-
-/**
- * @internal
- */
-final class CoversNothing {}

src/Factories/TestCaseFactory.php

@@ -17,6 +17,7 @@ use Pest\Factories\Concerns\HigherOrderable;
 use Pest\Support\Reflection;
 use Pest\Support\Str;
 use Pest\TestSuite;
+use PHPUnit\Framework\Attributes\TestDox;
 use PHPUnit\Framework\TestCase;
 use RuntimeException;
 
@@ -58,6 +59,11 @@ final class TestCaseFactory
         Concerns\Expectable::class,
     ];
 
+    /**
+     * The namespace for the test case, overrides the path-based namespace when set.
+     */
+    public ?string $namespace = null;
+
     /**
      * Creates a new Factory instance.
      */
@@ -110,8 +116,8 @@ final class TestCaseFactory
         $relativePath = (string) preg_replace('|%[a-fA-F0-9][a-fA-F0-9]|', '', $relativePath);
         // Remove escaped quote sequences (maintain namespace)
         $relativePath = str_replace(array_map(fn (string $quote): string => sprintf('\\%s', $quote), ['\'', '"']), '', $relativePath);
-        // Limit to A-Z, a-z, 0-9, '_', '-'.
-        $relativePath = (string) preg_replace('/[^A-Za-z0-9\\\\]/', '', $relativePath);
+        // Limit to Unicode letters and numbers.
+        $relativePath = (string) preg_replace('/[^\p{L}\p{N}\\\\]/u', '', $relativePath);
 
         $classFQN = 'P\\'.$relativePath;
 
@@ -126,7 +132,7 @@ final class TestCaseFactory
 
         $partsFQN = explode('\\', $classFQN);
         $className = array_pop($partsFQN);
-        $namespace = implode('\\', $partsFQN);
+        $namespace = $this->namespace ?? implode('\\', $partsFQN);
         $baseClass = sprintf('\%s', $this->class);
 
         if (trim($className) === '') {
@@ -135,7 +141,7 @@ final class TestCaseFactory
 
         $this->attributes = [
             new Attribute(
-                \PHPUnit\Framework\Attributes\TestDox::class,
+                TestDox::class,
                 [$this->filename],
             ),
             ...$this->attributes,
@@ -166,7 +172,7 @@ final class TestCaseFactory
             }
             PHP;
 
-            eval($classCode); // @phpstan-ignore-line
+            eval($classCode);
         } catch (ParseError $caught) {
             throw new RuntimeException(sprintf(
                 "Unable to create test case for test file at %s. \n %s",

src/Factories/TestCaseMethodFactory.php

@@ -9,10 +9,14 @@ use Pest\Evaluators\Attributes;
 use Pest\Exceptions\ShouldNotHappen;
 use Pest\Factories\Concerns\HigherOrderable;
 use Pest\Repositories\DatasetsRepository;
+use Pest\Support\Description;
 use Pest\Support\Str;
 use Pest\TestSuite;
 use PHPUnit\Framework\Assert;
 use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\Attributes\Depends;
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\Attributes\TestDox;
 use PHPUnit\Framework\TestCase;
 
 /**
@@ -31,8 +35,10 @@ final class TestCaseMethodFactory
 
     /**
      * The test's describing, if any.
+     *
+     * @var array<int, Description>
      */
-    public ?string $describing = null;
+    public array $describing = [];
 
     /**
      * The test's description, if any.
@@ -44,6 +50,11 @@ final class TestCaseMethodFactory
      */
     public int $repetitions = 1;
 
+    /**
+     * The test's number of flaky retry tries.
+     */
+    public ?int $flakyTries = null;
+
     /**
      * Determines if the test is a "todo".
      */
@@ -118,9 +129,9 @@ final class TestCaseMethodFactory
     }
 
     /**
-     * Creates the test's closure.
+     * Sets the test's hooks, and runs any proxy to the test case.
      */
-    public function getClosure(TestCase $concrete): Closure
+    public function setUp(TestCase $concrete): void
     {
         $concrete::flush(); // @phpstan-ignore-line
 
@@ -128,17 +139,32 @@ final class TestCaseMethodFactory
             throw ShouldNotHappen::fromMessage('Description can not be empty.');
         }
 
-        $closure = $this->closure;
-
         $testCase = TestSuite::getInstance()->tests->get($this->filename);
 
         assert($testCase instanceof TestCaseFactory);
         $testCase->factoryProxies->proxy($concrete);
         $this->factoryProxies->proxy($concrete);
+    }
 
+    /**
+     * Flushes the test case.
+     */
+    public function tearDown(TestCase $concrete): void
+    {
+        $concrete::flush(); // @phpstan-ignore-line
+    }
+
+    /**
+     * Creates the test's closure.
+     */
+    public function getClosure(): Closure
+    {
+        $closure = $this->closure;
+        $testCase = TestSuite::getInstance()->tests->get($this->filename);
+        assert($testCase instanceof TestCaseFactory);
         $method = $this;
 
-        return function (...$arguments) use ($testCase, $method, $closure): mixed { // @phpstan-ignore-line
+        return function (...$arguments) use ($testCase, $method, $closure): mixed {
             /* @var TestCase $this */
             $testCase->proxies->proxy($this);
             $method->proxies->proxy($this);
@@ -175,21 +201,21 @@ final class TestCaseMethodFactory
 
         $this->attributes = [
             new Attribute(
-                \PHPUnit\Framework\Attributes\Test::class,
+                Test::class,
                 [],
             ),
             new Attribute(
-                \PHPUnit\Framework\Attributes\TestDox::class,
+                TestDox::class,
                 [str_replace('*/', '{@*}', $this->description)],
             ),
             ...$this->attributes,
         ];
 
         foreach ($this->depends as $depend) {
-            $depend = Str::evaluable($this->describing !== null ? Str::describe($this->describing, $depend) : $depend);
+            $depend = Str::evaluable($this->describing === [] ? $depend : Str::describe($this->describing, $depend));
 
             $this->attributes[] = new Attribute(
-                \PHPUnit\Framework\Attributes\Depends::class,
+                Depends::class,
                 [$depend],
             );
         }
@@ -209,10 +235,8 @@ final class TestCaseMethodFactory
             $attributesCode
                 public function $methodName(...\$arguments)
                 {
-                    \$test = \Pest\TestSuite::getInstance()->tests->get(self::\$__filename)->getMethod(\$this->name())->getClosure(\$this);
-
                     return \$this->__runTest(
-                        \$test,
+                        \$this->__test,
                         ...\$arguments,
                     );
                 }

src/Functions.php

@@ -2,11 +2,13 @@
 
 declare(strict_types=1);
 
-use Pest\Concerns\Expectable;
+use Pest\Browser\Api\ArrayablePendingAwaitablePage;
+use Pest\Browser\Api\PendingAwaitablePage;
 use Pest\Configuration;
 use Pest\Exceptions\AfterAllWithinDescribe;
 use Pest\Exceptions\BeforeAllWithinDescribe;
 use Pest\Expectation;
+use Pest\Installers\PluginBrowser;
 use Pest\Mutate\Contracts\MutationTestRunner;
 use Pest\Mutate\Repositories\ConfigurationRepository;
 use Pest\PendingCalls\AfterEachCall;
@@ -18,6 +20,7 @@ use Pest\Repositories\DatasetsRepository;
 use Pest\Support\Backtrace;
 use Pest\Support\Container;
 use Pest\Support\DatasetInfo;
+use Pest\Support\Description;
 use Pest\Support\HigherOrderTapProxy;
 use Pest\TestSuite;
 use PHPUnit\Framework\TestCase;
@@ -43,8 +46,8 @@ if (! function_exists('beforeAll')) {
      */
     function beforeAll(Closure $closure): void
     {
-        if (! is_null(DescribeCall::describing())) {
-            $filename = Backtrace::file();
+        if (DescribeCall::describing() !== []) {
+            $filename = Backtrace::testFile();
 
             throw new BeforeAllWithinDescribe($filename);
         }
@@ -57,13 +60,11 @@ if (! function_exists('beforeEach')) {
     /**
      * Runs the given closure before each test in the current file.
      *
-     * @param-closure-this TestCase  $closure
-     *
-     * @return HigherOrderTapProxy<Expectable|TestCall|TestCase>|Expectable|TestCall|TestCase|mixed
+     * @param-closure-this TestCall  $closure
      */
     function beforeEach(?Closure $closure = null): BeforeEachCall
     {
-        $filename = Backtrace::file();
+        $filename = Backtrace::testFile();
 
         return new BeforeEachCall(TestSuite::getInstance(), $filename, $closure);
     }
@@ -88,14 +89,12 @@ if (! function_exists('describe')) {
      * Adds the given closure as a group of tests. The first argument
      * is the group description; the second argument is a closure
      * that contains the group tests.
-     *
-     * @return HigherOrderTapProxy<Expectable|TestCall|TestCase>|Expectable|TestCall|TestCase|mixed
      */
     function describe(string $description, Closure $tests): DescribeCall
     {
         $filename = Backtrace::testFile();
 
-        return new DescribeCall(TestSuite::getInstance(), $filename, $description, $tests);
+        return new DescribeCall(TestSuite::getInstance(), $filename, new Description($description), $tests);
     }
 }
 
@@ -108,7 +107,7 @@ if (! function_exists('uses')) {
      */
     function uses(string ...$classAndTraits): UsesCall
     {
-        $filename = Backtrace::file();
+        $filename = Backtrace::testFile();
 
         return new UsesCall($filename, array_values($classAndTraits));
     }
@@ -120,7 +119,7 @@ if (! function_exists('pest')) {
      */
     function pest(): Configuration
     {
-        return new Configuration(Backtrace::file());
+        return new Configuration(Backtrace::testFile());
     }
 }
 
@@ -130,13 +129,13 @@ if (! function_exists('test')) {
      * is the test description; the second argument is
      * a closure that contains the test expectations.
      *
-     * @param-closure-this TestCase  $closure
+     * @param-closure-this TestCall  $closure
      *
-     * @return Expectable|TestCall|TestCase|mixed
+     * @return ($description is string ? TestCall : HigherOrderTapProxy|TestCall)
      */
     function test(?string $description = null, ?Closure $closure = null): HigherOrderTapProxy|TestCall
     {
-        if ($description === null && TestSuite::getInstance()->test instanceof \PHPUnit\Framework\TestCase) {
+        if ($description === null && TestSuite::getInstance()->test instanceof TestCase) {
             return new HigherOrderTapProxy(TestSuite::getInstance()->test);
         }
 
@@ -152,34 +151,23 @@ if (! function_exists('it')) {
      * is the test description; the second argument is
      * a closure that contains the test expectations.
      *
-     * @param-closure-this TestCase  $closure
-     *
-     * @return Expectable|TestCall|TestCase|mixed
+     * @param-closure-this TestCall  $closure
      */
     function it(string $description, ?Closure $closure = null): TestCall
     {
         $description = sprintf('it %s', $description);
 
-        /** @var TestCall $test */
-        $test = test($description, $closure);
-
-        return $test;
+        return test($description, $closure);
     }
 }
 
 if (! function_exists('todo')) {
     /**
      * Creates a new test that is marked as "todo".
-     *
-     * @return Expectable|TestCall|TestCase|mixed
      */
     function todo(string $description): TestCall
     {
-        $test = test($description);
-
-        assert($test instanceof TestCall);
-
-        return $test->todo();
+        return test($description)->todo();
     }
 }
 
@@ -187,13 +175,11 @@ if (! function_exists('afterEach')) {
     /**
      * Runs the given closure after each test in the current file.
      *
-     * @param-closure-this TestCase  $closure
-     *
-     * @return Expectable|HigherOrderTapProxy<Expectable|TestCall|TestCase>|TestCall|mixed
+     * @param-closure-this TestCall  $closure
      */
     function afterEach(?Closure $closure = null): AfterEachCall
     {
-        $filename = Backtrace::file();
+        $filename = Backtrace::testFile();
 
         return new AfterEachCall(TestSuite::getInstance(), $filename, $closure);
     }
@@ -205,8 +191,8 @@ if (! function_exists('afterAll')) {
      */
     function afterAll(Closure $closure): void
     {
-        if (! is_null(DescribeCall::describing())) {
-            $filename = Backtrace::file();
+        if (DescribeCall::describing() !== []) {
+            $filename = Backtrace::testFile();
 
             throw new AfterAllWithinDescribe($filename);
         }
@@ -217,13 +203,13 @@ if (! function_exists('afterAll')) {
 
 if (! function_exists('covers')) {
     /**
-     * Specifies which classes, or functions, a test method covers.
+     * Specifies which classes, or functions, a test case covers.
      *
      * @param  array<int, string>|string  $classesOrFunctions
      */
     function covers(array|string ...$classesOrFunctions): void
     {
-        $filename = Backtrace::file();
+        $filename = Backtrace::testFile();
 
         $beforeEachCall = (new BeforeEachCall(TestSuite::getInstance(), $filename));
 
@@ -232,7 +218,7 @@ if (! function_exists('covers')) {
 
         /** @var MutationTestRunner $runner */
         $runner = Container::getInstance()->get(MutationTestRunner::class);
-        /** @var \Pest\Mutate\Repositories\ConfigurationRepository $configurationRepository */
+        /** @var ConfigurationRepository $configurationRepository */
         $configurationRepository = Container::getInstance()->get(ConfigurationRepository::class);
         $everything = $configurationRepository->cliConfiguration->toArray()['everything'] ?? false;
         $classes = $configurationRepository->cliConfiguration->toArray()['classes'] ?? false;
@@ -243,3 +229,86 @@ if (! function_exists('covers')) {
         }
     }
 }
+
+if (! function_exists('mutates')) {
+    /**
+     * Specifies which classes, enums, or traits a test case mutates.
+     *
+     * @param  array<int, string>|string  $targets
+     */
+    function mutates(array|string ...$targets): void
+    {
+        $filename = Backtrace::testFile();
+
+        $beforeEachCall = (new BeforeEachCall(TestSuite::getInstance(), $filename));
+        $beforeEachCall->group('__pest_mutate_only');
+
+        /** @var MutationTestRunner $runner */
+        $runner = Container::getInstance()->get(MutationTestRunner::class);
+        /** @var ConfigurationRepository $configurationRepository */
+        $configurationRepository = Container::getInstance()->get(ConfigurationRepository::class);
+        $everything = $configurationRepository->cliConfiguration->toArray()['everything'] ?? false;
+        $classes = $configurationRepository->cliConfiguration->toArray()['classes'] ?? false;
+        $paths = $configurationRepository->cliConfiguration->toArray()['paths'] ?? false;
+
+        if ($runner->isEnabled() && ! $everything && ! is_array($classes) && ! is_array($paths)) {
+            $beforeEachCall->only('__pest_mutate_only');
+        }
+
+        /** @var ConfigurationRepository $configurationRepository */
+        $configurationRepository = Container::getInstance()->get(ConfigurationRepository::class);
+        $paths = $configurationRepository->cliConfiguration->toArray()['paths'] ?? false;
+
+        if (! is_array($paths)) {
+            $configurationRepository->globalConfiguration('default')->class(...$targets); // @phpstan-ignore-line
+        }
+    }
+}
+
+if (! function_exists('fixture')) {
+    /**
+     * Returns the absolute path to a fixture file.
+     */
+    function fixture(string $file): string
+    {
+        $file = implode(DIRECTORY_SEPARATOR, [
+            TestSuite::getInstance()->rootPath,
+            TestSuite::getInstance()->testPath,
+            'Fixtures',
+            str_replace(['/', '\\'], DIRECTORY_SEPARATOR, $file),
+        ]);
+
+        $fileRealPath = realpath($file);
+
+        if ($fileRealPath === false) {
+            throw new InvalidArgumentException(
+                'The fixture file ['.$file.'] does not exist.',
+            );
+        }
+
+        return $fileRealPath;
+    }
+}
+
+if (! function_exists('visit')) {
+    /**
+     * Browse to the given URL.
+     *
+     * @template TUrl of array<int, string>|string
+     *
+     * @param  TUrl  $url
+     * @param  array<string, mixed>  $options
+     * @return (TUrl is array<int, string> ? ArrayablePendingAwaitablePage : PendingAwaitablePage)
+     */
+    function visit(array|string $url, array $options = []): ArrayablePendingAwaitablePage|PendingAwaitablePage
+    {
+        if (! class_exists(Pest\Browser\Configuration::class)) {
+            PluginBrowser::install();
+
+            exit(0);
+        }
+
+        // @phpstan-ignore-next-line
+        return test()->visit($url, $options);
+    }
+}

src/Installers/PluginBrowser.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Installers;
+
+use Pest\Support\View;
+
+final readonly class PluginBrowser
+{
+    public static function install(): void
+    {
+        View::render('installers/plugin-browser');
+    }
+}

src/Kernel.php

@@ -34,8 +34,9 @@ final readonly class Kernel
      *
      * @var array<int, class-string>
      */
-    private const BOOTSTRAPPERS = [
+    private const array BOOTSTRAPPERS = [
         Bootstrappers\BootOverrides::class,
+        Plugins\Tia\Bootstrapper::class,
         Bootstrappers\BootSubscribers::class,
         Bootstrappers\BootFiles::class,
         Bootstrappers\BootView::class,
@@ -71,7 +72,7 @@ final readonly class Kernel
             $output,
         );
 
-        register_shutdown_function(fn () => $kernel->shutdown());
+        register_shutdown_function($kernel->shutdown(...));
 
         foreach (self::BOOTSTRAPPERS as $bootstrapper) {
             $bootstrapper = Container::getInstance()->get($bootstrapper);

src/KernelDump.php

@@ -40,7 +40,7 @@ final class KernelDump
      */
     public function disable(): void
     {
-        @ob_clean(); // @phpstan-ignore-line
+        @ob_clean();
 
         if ($this->buffer !== '') {
             $this->flush();

src/Logging/Converter.php

@@ -11,6 +11,7 @@ use Pest\Support\Str;
 use PHPUnit\Event\Code\Test;
 use PHPUnit\Event\Code\TestMethod;
 use PHPUnit\Event\Code\Throwable;
+use PHPUnit\Event\Test\AfterLastTestMethodErrored;
 use PHPUnit\Event\Test\BeforeFirstTestMethodErrored;
 use PHPUnit\Event\Test\ConsideredRisky;
 use PHPUnit\Event\Test\Errored;
@@ -18,6 +19,7 @@ use PHPUnit\Event\Test\Failed;
 use PHPUnit\Event\Test\MarkedIncomplete;
 use PHPUnit\Event\Test\Skipped;
 use PHPUnit\Event\TestSuite\TestSuite;
+use PHPUnit\Event\TestSuite\TestSuiteForTestMethodWithDataProvider;
 use PHPUnit\Framework\Exception as FrameworkException;
 use PHPUnit\TestRunner\TestResult\TestResult as PhpUnitTestResult;
 
@@ -29,7 +31,7 @@ final readonly class Converter
     /**
      * The prefix for the test suite name.
      */
-    private const PREFIX = 'P\\';
+    private const string PREFIX = 'P\\';
 
     /**
      *  The state generator.
@@ -129,7 +131,7 @@ final readonly class Converter
 
         // clean the paths of each frame.
         $frames = array_map(
-            fn (string $frame): string => $this->toRelativePath($frame),
+            $this->toRelativePath(...),
             $frames
         );
 
@@ -147,6 +149,13 @@ final readonly class Converter
      */
     public function getTestSuiteName(TestSuite $testSuite): string
     {
+        if ($testSuite instanceof TestSuiteForTestMethodWithDataProvider) {
+            $firstTest = $this->getFirstTest($testSuite);
+            if ($firstTest instanceof TestMethod) {
+                return $this->getTestMethodNameWithoutDatasetSuffix($firstTest);
+            }
+        }
+
         $name = $testSuite->name();
 
         if (! str_starts_with($name, self::PREFIX)) {
@@ -168,6 +177,35 @@ final readonly class Converter
      * Gets the test suite location.
      */
     public function getTestSuiteLocation(TestSuite $testSuite): ?string
+    {
+        $firstTest = $this->getFirstTest($testSuite);
+        if (! $firstTest instanceof TestMethod) {
+            return null;
+        }
+        $path = $firstTest->testDox()->prettifiedClassName();
+        $classRelativePath = $this->toRelativePath($path);
+
+        if ($testSuite instanceof TestSuiteForTestMethodWithDataProvider) {
+            $methodName = $this->getTestMethodNameWithoutDatasetSuffix($firstTest);
+
+            return "$classRelativePath::$methodName";
+        }
+
+        return $classRelativePath;
+    }
+
+    /**
+     * Gets the prettified test method name without dataset-related suffix.
+     */
+    private function getTestMethodNameWithoutDatasetSuffix(TestMethod $testMethod): string
+    {
+        return Str::beforeLast($testMethod->testDox()->prettifiedMethodName(), ' with data set ');
+    }
+
+    /**
+     * Gets the first test from the test suite.
+     */
+    private function getFirstTest(TestSuite $testSuite): ?TestMethod
     {
         $tests = $testSuite->tests()->asArray();
 
@@ -181,9 +219,7 @@ final readonly class Converter
             throw ShouldNotHappen::fromMessage('Not an instance of TestMethod');
         }
 
-        $path = $firstTest->testDox()->prettifiedClassName();
-
-        return $this->toRelativePath($path);
+        return $firstTest;
     }
 
     /**
@@ -219,8 +255,9 @@ final readonly class Converter
         $numberOfNotPassedTests = count(
             array_unique(
                 array_map(
-                    function (BeforeFirstTestMethodErrored|Errored|Failed|Skipped|ConsideredRisky|MarkedIncomplete $event): string {
-                        if ($event instanceof BeforeFirstTestMethodErrored) {
+                    function (AfterLastTestMethodErrored|BeforeFirstTestMethodErrored|Errored|Failed|Skipped|ConsideredRisky|MarkedIncomplete $event): string {
+                        if ($event instanceof BeforeFirstTestMethodErrored
+                            || $event instanceof AfterLastTestMethodErrored) {
                             return $event->testClassName();
                         }
 

src/Logging/TeamCity/ServiceMessage.php

@@ -38,7 +38,7 @@ final class ServiceMessage
     {
         return new self('testSuiteStarted', [
             'name' => $name,
-            'locationHint' => $location === null ? null : "file://$location",
+            'locationHint' => $location === null ? null : "pest_qn://$location",
         ]);
     }
 

src/Logging/TeamCity/TeamCityLogger.php

@@ -200,7 +200,7 @@ final class TeamCityLogger
 
     public function testFinished(Finished $event): void
     {
-        if (! $this->time instanceof \PHPUnit\Event\Telemetry\HRTime) {
+        if (! $this->time instanceof HRTime) {
             throw ShouldNotHappen::fromMessage('Start time has not been set.');
         }
 
@@ -232,7 +232,6 @@ final class TeamCityLogger
             $reflector = new ReflectionClass($telemetry);
 
             $property = $reflector->getProperty('current');
-            $property->setAccessible(true);
             $snapshot = $property->getValue($telemetry);
             assert($snapshot instanceof Snapshot);
 

src/Mixins/Expectation.php

@@ -9,10 +9,12 @@ use Closure;
 use Countable;
 use DateTimeInterface;
 use Error;
+use Illuminate\Testing\TestResponse;
 use InvalidArgumentException;
 use JsonSerializable;
 use Pest\Exceptions\InvalidExpectationValue;
 use Pest\Matchers\Any;
+use Pest\Plugins\Snapshot;
 use Pest\Support\Arr;
 use Pest\Support\Exporter;
 use Pest\Support\NullClosure;
@@ -183,7 +185,6 @@ final class Expectation
     {
         foreach ($needles as $needle) {
             if (is_string($this->value)) {
-                // @phpstan-ignore-next-line
                 Assert::assertStringContainsString((string) $needle, $this->value);
             } else {
                 if (! is_iterable($this->value)) {
@@ -782,15 +783,13 @@ final class Expectation
         foreach ($array as $key => $value) {
             Assert::assertArrayHasKey($key, $valueAsArray, $message);
 
-            if ($message === '') {
-                $message = sprintf(
+            $assertMessage = $message !== '' ? $message : sprintf(
                 'Failed asserting that an array has a key %s with the value %s.',
                 $this->export($key),
                 $this->export($valueAsArray[$key]),
             );
-            }
 
-            Assert::assertEquals($value, $valueAsArray[$key], $message);
+            Assert::assertEquals($value, $valueAsArray[$key], $assertMessage);
         }
 
         return $this;
@@ -803,7 +802,7 @@ final class Expectation
      * @param  iterable<string, mixed>  $object
      * @return self<TValue>
      */
-    public function toMatchObject(iterable $object, string $message = ''): self
+    public function toMatchObject(object|iterable $object, string $message = ''): self
     {
         foreach ((array) $object as $property => $value) {
             if (! is_object($this->value) && ! is_string($this->value)) {
@@ -815,15 +814,13 @@ final class Expectation
             /* @phpstan-ignore-next-line */
             $propertyValue = $this->value->{$property};
 
-            if ($message === '') {
-                $message = sprintf(
+            $assertMessage = $message !== '' ? $message : sprintf(
                 'Failed asserting that an object has a property %s with the value %s.',
                 $this->export($property),
                 $this->export($propertyValue),
             );
-            }
 
-            Assert::assertEquals($value, $propertyValue, $message);
+            Assert::assertEquals($value, $propertyValue, $assertMessage);
         }
 
         return $this;
@@ -847,7 +844,7 @@ final class Expectation
             is_object($this->value) && method_exists($this->value, 'toSnapshot') => $this->value->toSnapshot(),
             is_object($this->value) && method_exists($this->value, '__toString') => $this->value->__toString(),
             is_object($this->value) && method_exists($this->value, 'toString') => $this->value->toString(),
-            $this->value instanceof \Illuminate\Testing\TestResponse => $this->value->getContent(), // @phpstan-ignore-line
+            $this->value instanceof TestResponse => $this->value->getContent(), // @phpstan-ignore-line
             is_array($this->value) => json_encode($this->value, JSON_THROW_ON_ERROR | JSON_PRETTY_PRINT),
             $this->value instanceof Traversable => json_encode(iterator_to_array($this->value), JSON_THROW_ON_ERROR | JSON_PRETTY_PRINT),
             $this->value instanceof JsonSerializable => json_encode($this->value->jsonSerialize(), JSON_THROW_ON_ERROR | JSON_PRETTY_PRINT),
@@ -855,18 +852,31 @@ final class Expectation
             default => InvalidExpectationValue::expected('array|object|string'),
         };
 
-        if ($snapshots->has()) {
-            [$filename, $content] = $snapshots->get();
-
-            Assert::assertSame(
-                strtr($content, ["\r\n" => "\n", "\r" => "\n"]),
-                strtr($string, ["\r\n" => "\n", "\r" => "\n"]),
-                $message === '' ? "Failed asserting that the string value matches its snapshot ($filename)." : $message
-            );
-        } else {
+        if (! $snapshots->has()) {
             $filename = $snapshots->save($string);
 
             TestSuite::getInstance()->registerSnapshotChange("Snapshot created at [$filename]");
+        } else {
+            [$filename, $content] = $snapshots->get();
+
+            $normalizedContent = strtr($content, ["\r\n" => "\n", "\r" => "\n"]);
+            $normalizedString = strtr($string, ["\r\n" => "\n", "\r" => "\n"]);
+
+            if (Snapshot::$updateSnapshots && $normalizedContent !== $normalizedString) {
+                $snapshots->save($string);
+
+                TestSuite::getInstance()->registerSnapshotChange("Snapshot updated at [$filename]");
+            } else {
+                if (Snapshot::$updateSnapshots) {
+                    TestSuite::getInstance()->registerSnapshotChange("Snapshot unchanged at [$filename]");
+                }
+
+                Assert::assertSame(
+                    $normalizedContent,
+                    $normalizedString,
+                    $message === '' ? "Failed asserting that the string value matches its snapshot ($filename)." : $message
+                );
+            }
         }
 
         return $this;
@@ -988,7 +998,7 @@ final class Expectation
      */
     private function export(mixed $value): string
     {
-        if (! $this->exporter instanceof \Pest\Support\Exporter) {
+        if (! $this->exporter instanceof Exporter) {
             $this->exporter = Exporter::default();
         }
 
@@ -1159,4 +1169,21 @@ final class Expectation
 
         return $this;
     }
+
+    /**
+     * Asserts that the value can be converted to a slug
+     *
+     * @return self<TValue>
+     */
+    public function toBeSlug(string $message = ''): self
+    {
+        if ($message === '') {
+            $message = "Failed asserting that {$this->value} can be converted to a slug.";
+        }
+
+        $slug = Str::slugify((string) $this->value);
+        Assert::assertNotEmpty($slug, $message);
+
+        return $this;
+    }
 }

src/PHPStan/HigherOrderExpectationTypeExtension.php

@@ -0,0 +1,57 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\PHPStan;
+
+use Pest\Expectations\HigherOrderExpectation;
+use PhpParser\Node\Expr;
+use PhpParser\Node\Expr\PropertyFetch;
+use PhpParser\Node\Identifier;
+use PHPStan\Analyser\Scope;
+use PHPStan\Reflection\ReflectionProvider;
+use PHPStan\Type\ExpressionTypeResolverExtension;
+use PHPStan\Type\ObjectType;
+use PHPStan\Type\Type;
+
+/**
+ * Prevents native declared properties of HigherOrderExpectation (like $original,
+ * $expectation, $opposite, $shouldReset) from being incorrectly resolved as
+ * higher-order value property accesses by downstream ExpressionTypeResolverExtensions.
+ *
+ * This extension must be registered BEFORE the peststan HigherOrderExpectationTypeExtension.
+ *
+ * @internal
+ */
+final readonly class HigherOrderExpectationTypeExtension implements ExpressionTypeResolverExtension
+{
+    public function __construct(
+        private ReflectionProvider $reflectionProvider,
+    ) {}
+
+    public function getType(Expr $expr, Scope $scope): ?Type
+    {
+        if (! $expr instanceof PropertyFetch || ! $expr->name instanceof Identifier) {
+            return null;
+        }
+
+        $varType = $scope->getType($expr->var);
+
+        if (! (new ObjectType(HigherOrderExpectation::class))->isSuperTypeOf($varType)->yes()) {
+            return null;
+        }
+
+        if (! $this->reflectionProvider->hasClass(HigherOrderExpectation::class)) {
+            return null;
+        }
+
+        $propertyName = $expr->name->name;
+        $classReflection = $this->reflectionProvider->getClass(HigherOrderExpectation::class);
+
+        if (! $classReflection->hasNativeProperty($propertyName)) {
+            return null;
+        }
+
+        return $varType->getProperty($propertyName, $scope)->getReadableType();
+    }
+}

src/Panic.php

@@ -46,7 +46,7 @@ final readonly class Panic
     {
         try {
             $output = Container::getInstance()->get(OutputInterface::class);
-        } catch (Throwable) { // @phpstan-ignore-line
+        } catch (Throwable) {
             $output = new ConsoleOutput;
         }
 

src/PendingCalls/AfterEachCall.php

@@ -6,6 +6,7 @@ namespace Pest\PendingCalls;
 
 use Closure;
 use Pest\PendingCalls\Concerns\Describable;
+use Pest\Support\Arr;
 use Pest\Support\Backtrace;
 use Pest\Support\ChainableClosure;
 use Pest\Support\HigherOrderMessageCollection;
@@ -54,8 +55,8 @@ final class AfterEachCall
         $proxies = $this->proxies;
 
         $afterEachTestCase = ChainableClosure::boundWhen(
-            fn (): bool => is_null($describing) || $this->__describing === $describing,
-            ChainableClosure::bound(fn () => $proxies->chain($this), $this->closure)->bindTo($this, self::class), // @phpstan-ignore-line
+            fn (): bool => $describing === [] || in_array(Arr::last($describing), $this->__describing, true),
+            ChainableClosure::bound(fn () => $proxies->chain($this), $this->closure)->bindTo($this, self::class),
         )->bindTo($this, self::class);
 
         assert($afterEachTestCase instanceof Closure);

src/PendingCalls/BeforeEachCall.php

@@ -7,6 +7,7 @@ namespace Pest\PendingCalls;
 use Closure;
 use Pest\Exceptions\AfterBeforeTestFunction;
 use Pest\PendingCalls\Concerns\Describable;
+use Pest\Support\Arr;
 use Pest\Support\Backtrace;
 use Pest\Support\ChainableClosure;
 use Pest\Support\HigherOrderMessageCollection;
@@ -63,12 +64,12 @@ final class BeforeEachCall
 
         $beforeEachTestCall = function (TestCall $testCall) use ($describing): void {
 
-            if ($this->describing !== null) {
-                if ($describing !== $this->describing) {
+            if ($this->describing !== []) {
+                if (Arr::last($describing) !== Arr::last($this->describing)) {
                     return;
                 }
 
-                if ($describing !== $testCall->describing) {
+                if (! in_array(Arr::last($describing), $testCall->describing, true)) {
                     return;
                 }
             }
@@ -77,8 +78,8 @@ final class BeforeEachCall
         };
 
         $beforeEachTestCase = ChainableClosure::boundWhen(
-            fn (): bool => is_null($describing) || $this->__describing === $describing,
-            ChainableClosure::bound(fn () => $testCaseProxies->chain($this), $this->closure)->bindTo($this, self::class), // @phpstan-ignore-line
+            fn (): bool => $describing === [] || in_array(Arr::last($describing), $this->__describing, true),
+            ChainableClosure::bound(fn () => $testCaseProxies->chain($this), $this->closure)->bindTo($this, self::class),
         )->bindTo($this, self::class);
 
         assert($beforeEachTestCase instanceof Closure);
@@ -96,7 +97,7 @@ final class BeforeEachCall
      */
     public function after(Closure $closure): self
     {
-        if ($this->describing === null) {
+        if ($this->describing === []) {
             throw new AfterBeforeTestFunction($this->filename);
         }
 

src/PendingCalls/Concerns/Describable.php

@@ -4,6 +4,8 @@ declare(strict_types=1);
 
 namespace Pest\PendingCalls\Concerns;
 
+use Pest\Support\Description;
+
 /**
  * @internal
  */
@@ -11,11 +13,15 @@ trait Describable
 {
     /**
      * Note: this is property is not used; however, it gets added automatically by rector php.
+     *
+     * @var array<int, Description>
      */
-    public string $__describing;
+    public array $__describing;
 
     /**
      * The describing of the test case.
+     *
+     * @var array<int, Description>
      */
-    public ?string $describing = null;
+    public array $describing = [];
 }

src/PendingCalls/DescribeCall.php

@@ -5,7 +5,7 @@ declare(strict_types=1);
 namespace Pest\PendingCalls;
 
 use Closure;
-use Pest\Support\Backtrace;
+use Pest\Support\Description;
 use Pest\TestSuite;
 
 /**
@@ -15,8 +15,10 @@ final class DescribeCall
 {
     /**
      * The current describe call.
+     *
+     * @var array<int, Description>
      */
-    private static ?string $describing = null;
+    private static array $describing = [];
 
     /**
      * The describe "before each" call.
@@ -29,7 +31,7 @@ final class DescribeCall
     public function __construct(
         public readonly TestSuite $testSuite,
         public readonly string $filename,
-        public readonly string $description,
+        public readonly Description $description,
         public readonly Closure $tests
     ) {
         //
@@ -37,8 +39,10 @@ final class DescribeCall
 
     /**
      * What is the current describing.
+     *
+     * @return array<int, Description>
      */
-    public static function describing(): ?string
+    public static function describing(): array
     {
         return self::$describing;
     }
@@ -48,14 +52,18 @@ final class DescribeCall
      */
     public function __destruct()
     {
-        unset($this->currentBeforeEachCall);
+        // Ensure BeforeEachCall destructs before creating tests
+        // by moving to local scope and clearing the reference
+        $beforeEach = $this->currentBeforeEachCall;
+        $this->currentBeforeEachCall = null;
+        unset($beforeEach);  // Trigger destructor immediately
 
-        self::$describing = $this->description;
+        self::$describing[] = $this->description;
 
         try {
             ($this->tests)();
         } finally {
-            self::$describing = null;
+            array_pop(self::$describing);
         }
     }
 
@@ -66,15 +74,16 @@ final class DescribeCall
      */
     public function __call(string $name, array $arguments): self
     {
-        $filename = Backtrace::file();
+        if (! $this->currentBeforeEachCall instanceof BeforeEachCall) {
+            $this->currentBeforeEachCall = new BeforeEachCall(TestSuite::getInstance(), $this->filename);
 
-        if (! $this->currentBeforeEachCall instanceof \Pest\PendingCalls\BeforeEachCall) {
-            $this->currentBeforeEachCall = new BeforeEachCall(TestSuite::getInstance(), $filename);
-
-            $this->currentBeforeEachCall->describing = $this->description;
+            $this->currentBeforeEachCall->describing = array_merge(
+                DescribeCall::describing(),
+                [$this->description]
+            );
         }
 
-        $this->currentBeforeEachCall->{$name}(...$arguments); // @phpstan-ignore-line
+        $this->currentBeforeEachCall->{$name}(...$arguments);
 
         return $this;
     }

src/PendingCalls/TestCall.php

@@ -5,12 +5,14 @@ declare(strict_types=1);
 namespace Pest\PendingCalls;
 
 use Closure;
+use Pest\Concerns\Testable;
 use Pest\Exceptions\InvalidArgumentException;
 use Pest\Exceptions\TestDescriptionMissing;
 use Pest\Factories\Attribute;
 use Pest\Factories\TestCaseMethodFactory;
 use Pest\Mutate\Repositories\ConfigurationRepository;
 use Pest\PendingCalls\Concerns\Describable;
+use Pest\Plugins\Environment;
 use Pest\Plugins\Only;
 use Pest\Support\Backtrace;
 use Pest\Support\Container;
@@ -20,14 +22,18 @@ use Pest\Support\NullClosure;
 use Pest\Support\Str;
 use Pest\TestSuite;
 use PHPUnit\Framework\AssertionFailedError;
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\CoversFunction;
+use PHPUnit\Framework\Attributes\CoversTrait;
+use PHPUnit\Framework\Attributes\Group;
 use PHPUnit\Framework\TestCase;
 
 /**
  * @internal
  *
- * @mixin HigherOrderCallables|TestCase
+ * @mixin HigherOrderCallables|TestCase|Testable
  */
-final class TestCall
+final class TestCall // @phpstan-ignore-line
 {
     use Describable;
 
@@ -75,7 +81,7 @@ final class TestCall
             throw new TestDescriptionMissing($this->filename);
         }
 
-        $description = is_null($this->describing)
+        $description = $this->describing === []
             ? $this->description
             : Str::describe($this->describing, $this->description);
 
@@ -177,10 +183,9 @@ final class TestCall
     }
 
     /**
-     * Runs the current test multiple times with
-     * each item of the given `iterable`.
+     * Runs the current test multiple times with each item of the given `iterable`.
      *
-     * @param  array<\Closure|iterable<int|string, mixed>|string>  $data
+     * @param  Closure|iterable<array-key, mixed>|string  $data
      */
     public function with(Closure|iterable|string ...$data): self
     {
@@ -210,7 +215,7 @@ final class TestCall
     {
         foreach ($groups as $group) {
             $this->testCaseMethod->attributes[] = new Attribute(
-                \PHPUnit\Framework\Attributes\Group::class,
+                Group::class,
                 [$group],
             );
         }
@@ -223,7 +228,7 @@ final class TestCall
      */
     public function only(): self
     {
-        Only::enable($this, ...func_get_args()); // @phpstan-ignore-line
+        Only::enable($this, ...func_get_args());
 
         return $this;
     }
@@ -314,6 +319,61 @@ final class TestCall
             : $this;
     }
 
+    /**
+     * Weather the current test is running on a CI environment.
+     */
+    private function runningOnCI(): bool
+    {
+        foreach ([
+            'CI',
+            'GITHUB_ACTIONS',
+            'GITLAB_CI',
+            'CIRCLECI',
+            'TRAVIS',
+            'APPVEYOR',
+            'BITBUCKET_BUILD_NUMBER',
+            'BUILDKITE',
+            'TEAMCITY_VERSION',
+            'JENKINS_URL',
+            'SYSTEM_COLLECTIONURI',
+            'CI_NAME',
+            'TASKCLUSTER_ROOT_URL',
+            'DRONE',
+            'WERCKER',
+            'NEVERCODE',
+            'SEMAPHORE',
+            'NETLIFY',
+            'NOW_BUILDER',
+        ] as $env) {
+            if (getenv($env) !== false) {
+                return true;
+            }
+        }
+
+        return Environment::name() === Environment::CI;
+    }
+
+    /**
+     * Skips the current test when running on a CI environments.
+     */
+    public function skipOnCI(): self
+    {
+        if ($this->runningOnCI()) {
+            return $this->skip('This test is skipped on [CI].');
+        }
+
+        return $this;
+    }
+
+    public function skipLocally(): self
+    {
+        if ($this->runningOnCI() === false) {
+            return $this->skip('This test is skipped [locally].');
+        }
+
+        return $this;
+    }
+
     /**
      * Skips the current test unless the given test is running on Windows.
      */
@@ -352,14 +412,28 @@ final class TestCall
         return $this;
     }
 
+    /**
+     * Marks the test as flaky, retrying it up to the given number of times.
+     */
+    public function flaky(int $tries = 3): self
+    {
+        if ($tries < 1) {
+            throw new InvalidArgumentException('The number of tries must be greater than 0.');
+        }
+
+        $this->testCaseMethod->flakyTries = $tries;
+
+        return $this;
+    }
+
     /**
      * Marks the test as "todo".
      */
     public function todo(// @phpstan-ignore-line
         array|string|null $note = null,
         array|string|null $assignee = null,
-        array|string|null $issue = null,
-        array|string|null $pr = null,
+        array|string|int|null $issue = null,
+        array|string|int|null $pr = null,
     ): self {
         $this->skip('__TODO__');
 
@@ -390,8 +464,8 @@ final class TestCall
     public function wip(// @phpstan-ignore-line
         array|string|null $note = null,
         array|string|null $assignee = null,
-        array|string|null $issue = null,
-        array|string|null $pr = null,
+        array|string|int|null $issue = null,
+        array|string|int|null $pr = null,
     ): self {
         if ($issue !== null) {
             $this->issue($issue);
@@ -418,8 +492,8 @@ final class TestCall
     public function done(// @phpstan-ignore-line
         array|string|null $note = null,
         array|string|null $assignee = null,
-        array|string|null $issue = null,
-        array|string|null $pr = null,
+        array|string|int|null $issue = null,
+        array|string|int|null $pr = null,
     ): self {
         if ($issue !== null) {
             $this->issue($issue);
@@ -548,7 +622,7 @@ final class TestCall
     {
         foreach ($classes as $class) {
             $this->testCaseFactoryAttributes[] = new Attribute(
-                \PHPUnit\Framework\Attributes\CoversClass::class,
+                CoversClass::class,
                 [$class],
             );
         }
@@ -571,7 +645,7 @@ final class TestCall
     {
         foreach ($traits as $trait) {
             $this->testCaseFactoryAttributes[] = new Attribute(
-                \PHPUnit\Framework\Attributes\CoversTrait::class,
+                CoversTrait::class,
                 [$trait],
             );
         }
@@ -594,7 +668,7 @@ final class TestCall
     {
         foreach ($functions as $function) {
             $this->testCaseFactoryAttributes[] = new Attribute(
-                \PHPUnit\Framework\Attributes\CoversFunction::class,
+                CoversFunction::class,
                 [$function],
             );
         }
@@ -603,18 +677,29 @@ final class TestCall
     }
 
     /**
-     * Sets that the current test covers nothing.
+     * Adds one or more references to the tested method or class. This helps
+     * to link test cases to the source code for easier navigation.
+     *
+     * @param  array<class-string|string>|class-string  ...$classes
      */
-    public function coversNothing(): self
+    public function references(string|array ...$classes): self
     {
-        $this->testCaseMethod->attributes[] = new Attribute(
-            \PHPUnit\Framework\Attributes\CoversNothing::class,
-            [],
-        );
+        assert($classes !== []);
 
         return $this;
     }
 
+    /**
+     * Adds one or more references to the tested method or class. This helps
+     * to link test cases to the source code for easier navigation.
+     *
+     * @param  array<class-string|string>|class-string  ...$classes
+     */
+    public function see(string|array ...$classes): self
+    {
+        return $this->references(...$classes);
+    }
+
     /**
      * Informs the test runner that no expectations happen in this test,
      * and its purpose is simply to check whether the given code can
@@ -682,7 +767,7 @@ final class TestCall
             throw new TestDescriptionMissing($this->filename);
         }
 
-        if (! is_null($this->describing)) {
+        if ($this->describing !== []) {
             $this->testCaseMethod->describing = $this->describing;
             $this->testCaseMethod->description = Str::describe($this->describing, $this->description);
         } else {
@@ -692,7 +777,12 @@ final class TestCall
         $this->testSuite->tests->set($this->testCaseMethod);
 
         if (! is_null($testCase = $this->testSuite->tests->get($this->filename))) {
-            $testCase->attributes = array_merge($testCase->attributes, $this->testCaseFactoryAttributes);
+            $attributesToMerge = array_filter(
+                $this->testCaseFactoryAttributes,
+                fn (Attribute $attributeToMerge): bool => array_filter($testCase->attributes, fn (Attribute $attribute): bool => serialize($attributeToMerge) === serialize($attribute)) === []
+            );
+
+            $testCase->attributes = array_merge($testCase->attributes, $attributesToMerge);
         }
     }
 }

src/Pest.php

@@ -6,7 +6,7 @@ namespace Pest;
 
 function version(): string
 {
-    return '3.0.3';
+    return '4.6.3';
 }
 
 function testDirectory(string $file = ''): string

src/Plugins/Cache.php

@@ -21,7 +21,7 @@ final class Cache implements HandlesArguments
     /**
      * The temporary folder.
      */
-    private const TEMPORARY_FOLDER = __DIR__
+    private const string TEMPORARY_FOLDER = __DIR__
         .DIRECTORY_SEPARATOR
         .'..'
         .DIRECTORY_SEPARATOR

src/Plugins/Concerns/HandleArguments.php

@@ -56,4 +56,31 @@ trait HandleArguments
 
         return array_values(array_flip($arguments));
     }
+
+    /**
+     * Pops the given argument and its value from the arguments, returning the value.
+     *
+     * @param  array<int, string>  $arguments
+     */
+    public function popArgumentValue(string $argument, array &$arguments): ?string
+    {
+        foreach ($arguments as $key => $value) {
+            if (str_contains($value, "$argument=")) {
+                unset($arguments[$key]);
+                $arguments = array_values($arguments);
+
+                return substr($value, strlen($argument) + 1);
+            }
+
+            if ($value === $argument && isset($arguments[$key + 1])) {
+                $result = $arguments[$key + 1];
+                unset($arguments[$key], $arguments[$key + 1]);
+                $arguments = array_values($arguments);
+
+                return $result;
+            }
+        }
+
+        return null;
+    }
 }

src/Plugins/Configuration.php

@@ -21,7 +21,7 @@ final class Configuration implements HandlesArguments, Terminable
     /**
      * The base PHPUnit file.
      */
-    public const BASE_PHPUNIT_FILE = __DIR__
+    public const string BASE_PHPUNIT_FILE = __DIR__
         .DIRECTORY_SEPARATOR
         .'..'
         .DIRECTORY_SEPARATOR
@@ -34,7 +34,7 @@ final class Configuration implements HandlesArguments, Terminable
      */
     public function handleArguments(array $arguments): array
     {
-        if ($this->hasArgument('--configuration', $arguments) || $this->hasCustomConfigurationFile()) {
+        if ($this->hasArgument('--configuration', $arguments) || $this->hasArgument('-c', $arguments) || $this->hasCustomConfigurationFile()) {
             return $arguments;
         }
 

src/Plugins/Coverage.php

@@ -17,26 +17,39 @@ use Symfony\Component\Console\Output\OutputInterface;
  */
 final class Coverage implements AddsOutput, HandlesArguments
 {
-    /**
-     * @var string
-     */
-    private const COVERAGE_OPTION = 'coverage';
+    private const string COVERAGE_OPTION = 'coverage';
 
-    /**
-     * @var string
-     */
-    private const MIN_OPTION = 'min';
+    private const string MIN_OPTION = 'min';
+
+    private const string EXACTLY_OPTION = 'exactly';
+
+    private const string ONLY_COVERED_OPTION = 'only-covered';
 
     /**
      * Whether it should show the coverage or not.
      */
     public bool $coverage = false;
 
+    /**
+     * Whether it should show the coverage or not.
+     */
+    public bool $compact = false;
+
     /**
      * The minimum coverage.
      */
     public float $coverageMin = 0.0;
 
+    /**
+     * The exactly coverage.
+     */
+    public ?float $coverageExactly = null;
+
+    /**
+     * Whether it should show only covered files.
+     */
+    public bool $showOnlyCovered = false;
+
     /**
      * Creates a new Plugin instance.
      */
@@ -51,7 +64,7 @@ final class Coverage implements AddsOutput, HandlesArguments
     public function handleArguments(array $originals): array
     {
         $arguments = [...[''], ...array_values(array_filter($originals, function (string $original): bool {
-            foreach ([self::COVERAGE_OPTION, self::MIN_OPTION] as $option) {
+            foreach ([self::COVERAGE_OPTION, self::MIN_OPTION, self::EXACTLY_OPTION, self::ONLY_COVERED_OPTION] as $option) {
                 if ($original === sprintf('--%s', $option)) {
                     return true;
                 }
@@ -73,6 +86,8 @@ final class Coverage implements AddsOutput, HandlesArguments
         $inputs = [];
         $inputs[] = new InputOption(self::COVERAGE_OPTION, null, InputOption::VALUE_NONE);
         $inputs[] = new InputOption(self::MIN_OPTION, null, InputOption::VALUE_REQUIRED);
+        $inputs[] = new InputOption(self::EXACTLY_OPTION, null, InputOption::VALUE_REQUIRED);
+        $inputs[] = new InputOption(self::ONLY_COVERED_OPTION, null, InputOption::VALUE_NONE);
 
         $input = new ArgvInput($arguments, new InputDefinition($inputs));
         if ((bool) $input->getOption(self::COVERAGE_OPTION)) {
@@ -106,6 +121,21 @@ final class Coverage implements AddsOutput, HandlesArguments
             $this->coverageMin = (float) $minOption;
         }
 
+        if ($input->getOption(self::EXACTLY_OPTION) !== null) {
+            /** @var int|float $exactlyOption */
+            $exactlyOption = $input->getOption(self::EXACTLY_OPTION);
+
+            $this->coverageExactly = (float) $exactlyOption;
+        }
+
+        if ((bool) $input->getOption(self::ONLY_COVERED_OPTION)) {
+            $this->showOnlyCovered = true;
+        }
+
+        if ($_SERVER['COLLISION_PRINTER_COMPACT'] ?? false) {
+            $this->compact = true;
+        }
+
         return $originals;
     }
 
@@ -126,11 +156,23 @@ final class Coverage implements AddsOutput, HandlesArguments
                 exit(1);
             }
 
-            $coverage = \Pest\Support\Coverage::report($this->output);
-
+            $coverage = \Pest\Support\Coverage::report($this->output, $this->compact, $this->showOnlyCovered);
             $exitCode = (int) ($coverage < $this->coverageMin);
 
+            if ($exitCode === 0 && $this->coverageExactly !== null) {
+                $comparableCoverage = $this->computeComparableCoverage($coverage);
+                $comparableCoverageExactly = $this->computeComparableCoverage($this->coverageExactly);
+
+                $exitCode = $comparableCoverage === $comparableCoverageExactly ? 0 : 1;
+
                 if ($exitCode === 1) {
+                    $this->output->writeln(sprintf(
+                        "\n  <fg=white;bg=red;options=bold> FAIL </> Code coverage not exactly <fg=white;options=bold> %s %%</>, currently <fg=red;options=bold> %s %%</>.",
+                        number_format($this->coverageExactly, 1),
+                        number_format(floor($coverage * 10) / 10, 1),
+                    ));
+                }
+            } elseif ($exitCode === 1) {
                 $this->output->writeln(sprintf(
                     "\n  <fg=white;bg=red;options=bold> FAIL </> Code coverage below expected <fg=white;options=bold> %s %%</>, currently <fg=red;options=bold> %s %%</>.",
                     number_format($this->coverageMin, 1),
@@ -143,4 +185,12 @@ final class Coverage implements AddsOutput, HandlesArguments
 
         return $exitCode;
     }
+
+    /**
+     * Computes the comparable coverage to a percentage with one decimal.
+     */
+    private function computeComparableCoverage(float $coverage): float
+    {
+        return floor($coverage * 10) / 10;
+    }
 }

src/Plugins/Environment.php

@@ -14,12 +14,12 @@ final class Environment implements HandlesArguments
     /**
      * The continuous integration environment.
      */
-    public const CI = 'ci';
+    public const string CI = 'ci';
 
     /**
      * The local environment.
      */
-    public const LOCAL = 'local';
+    public const string LOCAL = 'local';
 
     /**
      * The current environment.

src/Plugins/Help.php

@@ -99,6 +99,7 @@ final readonly class Help implements HandlesArguments
     {
         $helpReflection = new PHPUnitHelp;
 
+        // @phpstan-ignore-next-line
         $content = (fn (): array => $this->elements())->call($helpReflection);
 
         $content['Configuration'] = [...[[
@@ -106,6 +107,13 @@ final readonly class Help implements HandlesArguments
             'desc' => 'Initialise a standard Pest configuration',
         ]], ...$content['Configuration']];
 
+        $content['AI'] = [
+            [
+                'arg' => '--ai',
+                'desc' => 'Run a code snippet as a fully scaffolded test for AI verification',
+            ],
+        ];
+
         $content['Execution'] = [...[
             [
                 'arg' => '--parallel',
@@ -115,6 +123,10 @@ final readonly class Help implements HandlesArguments
                 'arg' => '--update-snapshots',
                 'desc' => 'Update snapshots for tests using the "toMatchSnapshot" expectation',
             ],
+            [
+                'arg' => '--update-shards',
+                'desc' => 'Update shards.json with test timing data for time-balanced sharding',
+            ],
         ], ...$content['Execution']];
 
         $content['Selection'] = [[
@@ -141,6 +153,12 @@ final readonly class Help implements HandlesArguments
         ], [
             'arg' => '--retry',
             'desc' => 'Run non-passing tests first and stop execution upon first error or failure',
+        ], [
+            'arg' => '--dirty',
+            'desc' => 'Only run tests that have uncommitted changes according to Git',
+        ], [
+            'arg' => '--flaky',
+            'desc' => 'Output to standard output tests marked as flaky',
         ], ...$content['Selection']];
 
         $content['Reporting'] = [...$content['Reporting'], ...[
@@ -156,6 +174,12 @@ final readonly class Help implements HandlesArguments
         ], [
             'arg' => '--coverage --min',
             'desc' => 'Set the minimum required coverage percentage, and fail if not met',
+        ], [
+            'arg' => '--coverage --exactly',
+            'desc' => 'Set the exact required coverage percentage, and fail if not met',
+        ], [
+            'arg' => '--coverage --only-covered',
+            'desc' => 'Hide files with 0% coverage from the code coverage report',
         ], ...$content['Code Coverage']];
 
         $content['Mutation Testing'] = [[

src/Plugins/Init.php

@@ -20,12 +20,12 @@ final readonly class Init implements HandlesArguments
     /**
      * The option the triggers the init job.
      */
-    private const INIT_OPTION = '--init';
+    private const string INIT_OPTION = '--init';
 
     /**
      * The files that will be created.
      */
-    private const STUBS = [
+    private const array STUBS = [
         'phpunit.xml.stub' => 'phpunit.xml',
         'Pest.php.stub' => 'tests/Pest.php',
         'TestCase.php.stub' => 'tests/TestCase.php',
@@ -119,6 +119,6 @@ final readonly class Init implements HandlesArguments
      */
     private function isLaravelInstalled(): bool
     {
-        return InstalledVersions::isInstalled('laravel/laravel');
+        return InstalledVersions::isInstalled('laravel/framework');
     }
 }

src/Plugins/Only.php

@@ -5,7 +5,10 @@ declare(strict_types=1);
 namespace Pest\Plugins;
 
 use Pest\Contracts\Plugins\Terminable;
+use Pest\Factories\Attribute;
+use Pest\Factories\TestCaseMethodFactory;
 use Pest\PendingCalls\TestCall;
+use PHPUnit\Framework\Attributes\Group;
 
 /**
  * @internal
@@ -15,7 +18,7 @@ final class Only implements Terminable
     /**
      * The temporary folder.
      */
-    private const TEMPORARY_FOLDER = __DIR__
+    private const string TEMPORARY_FOLDER = __DIR__
         .DIRECTORY_SEPARATOR
         .'..'
         .DIRECTORY_SEPARATOR
@@ -23,28 +26,19 @@ final class Only implements Terminable
         .DIRECTORY_SEPARATOR
         .'.temp';
 
-    /**
-     * {@inheritDoc}
-     */
-    public function terminate(): void
-    {
-        if (Parallel::isWorker()) {
-            return;
-        }
-
-        $lockFile = self::TEMPORARY_FOLDER.DIRECTORY_SEPARATOR.'only.lock';
-
-        if (file_exists($lockFile)) {
-            unlink($lockFile);
-        }
-    }
-
     /**
      * Creates the lock file.
      */
-    public static function enable(TestCall $testCall, string $group = '__pest_only'): void
+    public static function enable(TestCall|TestCaseMethodFactory $testCall, string $group = '__pest_only'): void
     {
+        if ($testCall instanceof TestCall) {
             $testCall->group($group);
+        } else {
+            $testCall->attributes[] = new Attribute(
+                Group::class,
+                [$group],
+            );
+        }
 
         if (Environment::name() === Environment::CI || Parallel::isWorker()) {
             return;
@@ -88,4 +82,20 @@ final class Only implements Terminable
 
         return file_get_contents($lockFile) ?: '__pest_only'; // @phpstan-ignore-line
     }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function terminate(): void
+    {
+        if (Parallel::isWorker()) {
+            return;
+        }
+
+        $lockFile = self::TEMPORARY_FOLDER.DIRECTORY_SEPARATOR.'only.lock';
+
+        if (file_exists($lockFile)) {
+            unlink($lockFile);
+        }
+    }
 }

src/Plugins/Parallel.php

@@ -23,9 +23,9 @@ final class Parallel implements HandlesArguments
 {
     use HandleArguments;
 
-    private const GLOBAL_PREFIX = 'PEST_PARALLEL_GLOBAL_';
+    private const string GLOBAL_PREFIX = 'PEST_PARALLEL_GLOBAL_';
 
-    private const HANDLERS = [
+    private const array HANDLERS = [
         Parallel\Handlers\Parallel::class,
         Parallel\Handlers\Pest::class,
         Parallel\Handlers\Laravel::class,
@@ -34,7 +34,7 @@ final class Parallel implements HandlesArguments
     /**
      * @var string[]
      */
-    private const UNSUPPORTED_ARGUMENTS = ['--todo', '--todos', '--retry', '--notes', '--issue', '--pr', '--pull-request'];
+    private const array UNSUPPORTED_ARGUMENTS = ['--todo', '--todos', '--retry', '--notes', '--issue', '--pr', '--pull-request', '--flaky'];
 
     /**
      * Whether the given command line arguments indicate that the test suite should be run in parallel.
@@ -127,7 +127,9 @@ final class Parallel implements HandlesArguments
             $arguments
         );
 
-        $exitCode = $this->paratestCommand()->run(new ArgvInput($filteredArguments), new CleanConsoleOutput);
+        $filteredArguments = $this->processTeamcityArguments($filteredArguments);
+
+        $exitCode = $this->paratestCommand()->run(new ArgvInput(array_values($filteredArguments)), new CleanConsoleOutput);
 
         return CallsAddsOutput::execute($exitCode);
     }
@@ -197,4 +199,18 @@ final class Parallel implements HandlesArguments
 
         return $this->popArgument('-p', $arguments);
     }
+
+    /**
+     * @param  string[]  $arguments
+     * @return string[]
+     */
+    public function processTeamcityArguments(array $arguments): array
+    {
+        $argv = new ArgvInput;
+        if ($argv->hasParameterOption('--teamcity')) {
+            $arguments[] = '--teamcity';
+        }
+
+        return $arguments;
+    }
 }

src/Plugins/Parallel/Handlers/Laravel.php

@@ -7,6 +7,7 @@ namespace Pest\Plugins\Parallel\Handlers;
 use Closure;
 use Composer\InstalledVersions;
 use Illuminate\Testing\ParallelRunner;
+use Orchestra\Testbench\TestCase;
 use ParaTest\Options;
 use ParaTest\RunnerInterface;
 use Pest\Contracts\Plugins\HandlesArguments;
@@ -39,13 +40,13 @@ final class Laravel implements HandlesArguments
      * Executes the given closure when running Laravel.
      *
      * @param  array<int, string>  $arguments
-     * @param  CLosure(array<int, string>): array<int, string>  $closure
+     * @param  Closure(array<int, string>): array<int, string>  $closure
      * @return array<int, string>
      */
     private function whenUsingLaravel(array $arguments, Closure $closure): array
     {
         $isLaravelApplication = InstalledVersions::isInstalled('laravel/framework', false);
-        $isLaravelPackage = class_exists(\Orchestra\Testbench\TestCase::class);
+        $isLaravelPackage = class_exists(TestCase::class);
 
         if ($isLaravelApplication && ! $isLaravelPackage) {
             return $closure($arguments);

src/Plugins/Parallel/Handlers/Parallel.php

@@ -18,7 +18,7 @@ final class Parallel implements HandlesArguments
     /**
      * The list of arguments to remove.
      */
-    private const ARGS_TO_REMOVE = [
+    private const array ARGS_TO_REMOVE = [
         '--parallel',
         '-p',
         '--no-output',

src/Plugins/Parallel/Paratest/CleanConsoleOutput.php

@@ -11,6 +11,7 @@ final class CleanConsoleOutput extends ConsoleOutput
     /**
      * {@inheritdoc}
      */
+    #[\Override]
     protected function doWrite(string $message, bool $newline): void // @pest-arch-ignore-line
     {
         if ($this->isOpeningHeadline($message)) {

src/Plugins/Parallel/Paratest/ResultPrinter.php

@@ -59,10 +59,10 @@ final class ResultPrinter
         private readonly OutputInterface $output,
         private readonly Options $options
     ) {
-        $this->printer = new class($this->output) implements Printer
+        $this->printer = new readonly class($this->output) implements Printer
         {
             public function __construct(
-                private readonly OutputInterface $output,
+                private OutputInterface $output,
             ) {}
 
             public function print(string $buffer): void
@@ -81,7 +81,9 @@ final class ResultPrinter
             public function flush(): void {}
         };
 
-        $this->compactPrinter = CompactPrinter::default();
+        $this->compactPrinter = CompactPrinter::default(
+            decorated: ! in_array('--colors=never', $_SERVER['argv'] ?? [], true),
+        );
 
         if (! $this->options->configuration->hasLogfileTeamcity()) {
             return;
@@ -92,14 +94,13 @@ final class ResultPrinter
         $this->teamcityLogFileHandle = $teamcityLogFileHandle;
     }
 
-    /** @param  list<SplFileInfo>  $teamcityFiles */
     public function printFeedback(
         SplFileInfo $progressFile,
         SplFileInfo $outputFile,
-        array $teamcityFiles
+        ?SplFileInfo $teamcityFile,
     ): void {
-        if ($this->options->needsTeamcity) {
-            $teamcityProgress = $this->tailMultiple($teamcityFiles);
+        if ($this->options->needsTeamcity && $teamcityFile instanceof SplFileInfo) {
+            $teamcityProgress = $this->tailMultiple([$teamcityFile]);
 
             if ($this->teamcityLogFileHandle !== null) {
                 fwrite($this->teamcityLogFileHandle, $teamcityProgress);
@@ -171,9 +172,19 @@ final class ResultPrinter
 
         $state = (new StateGenerator)->fromPhpUnitTestResult($this->passedTests, $testResult);
 
+        if ($testResult->numberOfTestsRun() === 0 && $state->testSuiteTestsCount() === 0) {
+            $this->output->writeln([
+                '',
+                '  <fg=white;options=bold;bg=blue> INFO </> No tests found.',
+                '',
+            ]);
+        }
+
+        if (! isset($_SERVER['PEST_PARALLEL_NO_OUTPUT'])) {
             $this->compactPrinter->errors($state);
             $this->compactPrinter->recap($state, $testResult, $duration, $this->options);
         }
+    }
 
     private function printFeedbackItem(string $item): void
     {

src/Plugins/Parallel/Paratest/WrapperRunner.php

@@ -17,8 +17,10 @@ use ParaTest\WrapperRunner\WrapperWorker;
 use Pest\Result;
 use Pest\TestSuite;
 use PHPUnit\Event\Facade as EventFacade;
+use PHPUnit\Event\Test\AfterLastTestMethodFailed;
 use PHPUnit\Event\TestRunner\WarningTriggered;
 use PHPUnit\Runner\CodeCoverage;
+use PHPUnit\Runner\ResultCache\DefaultResultCache;
 use PHPUnit\TestRunner\TestResult\Facade as TestResultFacade;
 use PHPUnit\TestRunner\TestResult\TestResult;
 use PHPUnit\TextUI\Configuration\CodeCoverageFilterRegistry;
@@ -37,6 +39,7 @@ use function dirname;
 use function file_get_contents;
 use function max;
 use function realpath;
+use function str_starts_with;
 use function unlink;
 use function unserialize;
 use function usleep;
@@ -49,7 +52,12 @@ final class WrapperRunner implements RunnerInterface
     /**
      * The time to sleep between cycles.
      */
-    private const CYCLE_SLEEP = 10000;
+    /**
+     * The merged test result from the parallel run.
+     */
+    public static ?TestResult $result = null;
+
+    private const int CYCLE_SLEEP = 10000;
 
     /**
      * The result printer.
@@ -79,7 +87,10 @@ final class WrapperRunner implements RunnerInterface
     private array $unexpectedOutputFiles = [];
 
     /** @var list<SplFileInfo> */
-    private array $testresultFiles = [];
+    private array $resultCacheFiles = [];
+
+    /** @var list<SplFileInfo> */
+    private array $testResultFiles = [];
 
     /** @var list<SplFileInfo> */
     private array $coverageFiles = [];
@@ -122,7 +133,11 @@ final class WrapperRunner implements RunnerInterface
             $parameters = array_merge($parameters, $options->passthruPhp);
         }
 
+        /** @var array<int, non-empty-string> $parameters */
+        $parameters = $this->handleLaravelHerd($parameters);
+
         $parameters[] = $wrapper;
+        $parameters[] = '--test-directory='.TestSuite::getInstance()->testPath;
 
         $this->parameters = $parameters;
         $this->codeCoverageFilterRegistry = new CodeCoverageFilterRegistry;
@@ -153,6 +168,21 @@ final class WrapperRunner implements RunnerInterface
         return $this->complete($result);
     }
 
+    /**
+     * Handles Laravel Herd's debug and coverage modes.
+     *
+     * @param  array<string>  $parameters
+     * @return array<string>
+     */
+    private function handleLaravelHerd(array $parameters): array
+    {
+        if (isset($_ENV['HERD_DEBUG_INI'])) {
+            return array_merge($parameters, ['-c', $_ENV['HERD_DEBUG_INI']]);
+        }
+
+        return $parameters;
+    }
+
     private function startWorkers(): void
     {
         for ($token = 1; $token <= $this->options->processes; $token++) {
@@ -202,7 +232,7 @@ final class WrapperRunner implements RunnerInterface
         $this->printer->printFeedback(
             $worker->progressFile,
             $worker->unexpectedOutputFile,
-            $this->teamcityFiles,
+            $worker->teamcityFile ?? null,
         );
         $worker->reset();
     }
@@ -246,7 +276,8 @@ final class WrapperRunner implements RunnerInterface
         $this->batches[$token] = 0;
 
         $this->unexpectedOutputFiles[] = $worker->unexpectedOutputFile;
-        $this->testresultFiles[] = $worker->testresultFile;
+        $this->unexpectedOutputFiles[] = $worker->unexpectedOutputFile;
+        $this->testResultFiles[] = $worker->testResultFile;
 
         if (isset($worker->junitFile)) {
             $this->junitFiles[] = $worker->junitFile;
@@ -280,37 +311,52 @@ final class WrapperRunner implements RunnerInterface
 
     private function complete(TestResult $testResultSum): int
     {
-        foreach ($this->testresultFiles as $testresultFile) {
-            if (! $testresultFile->isFile()) {
+        foreach ($this->testResultFiles as $testResultFile) {
+            if (! $testResultFile->isFile()) {
                 continue;
             }
 
-            $contents = file_get_contents($testresultFile->getPathname());
+            $contents = file_get_contents($testResultFile->getPathname());
             assert($contents !== false);
             $testResult = unserialize($contents);
             assert($testResult instanceof TestResult);
 
+            /** @var list<AfterLastTestMethodFailed> $failedEvents */
+            $failedEvents = array_merge_recursive($testResultSum->testFailedEvents(), $testResult->testFailedEvents());
+
             $testResultSum = new TestResult(
                 (int) $testResultSum->hasTests() + (int) $testResult->hasTests(),
                 $testResultSum->numberOfTestsRun() + $testResult->numberOfTestsRun(),
                 $testResultSum->numberOfAssertions() + $testResult->numberOfAssertions(),
                 array_merge_recursive($testResultSum->testErroredEvents(), $testResult->testErroredEvents()),
-                array_merge_recursive($testResultSum->testFailedEvents(), $testResult->testFailedEvents()),
+                $failedEvents,
                 array_merge_recursive($testResultSum->testConsideredRiskyEvents(), $testResult->testConsideredRiskyEvents()),
                 array_merge_recursive($testResultSum->testSuiteSkippedEvents(), $testResult->testSuiteSkippedEvents()),
                 array_merge_recursive($testResultSum->testSkippedEvents(), $testResult->testSkippedEvents()),
                 array_merge_recursive($testResultSum->testMarkedIncompleteEvents(), $testResult->testMarkedIncompleteEvents()),
                 array_merge_recursive($testResultSum->testTriggeredPhpunitDeprecationEvents(), $testResult->testTriggeredPhpunitDeprecationEvents()),
                 array_merge_recursive($testResultSum->testTriggeredPhpunitErrorEvents(), $testResult->testTriggeredPhpunitErrorEvents()),
+                array_merge_recursive($testResultSum->testTriggeredPhpunitNoticeEvents(), $testResult->testTriggeredPhpunitNoticeEvents()),
                 array_merge_recursive($testResultSum->testTriggeredPhpunitWarningEvents(), $testResult->testTriggeredPhpunitWarningEvents()),
+                // @phpstan-ignore-next-line
                 array_merge_recursive($testResultSum->testRunnerTriggeredDeprecationEvents(), $testResult->testRunnerTriggeredDeprecationEvents()),
+                // @phpstan-ignore-next-line
+                array_merge_recursive($testResultSum->testRunnerTriggeredNoticeEvents(), $testResult->testRunnerTriggeredNoticeEvents()),
+                // @phpstan-ignore-next-line
                 array_merge_recursive($testResultSum->testRunnerTriggeredWarningEvents(), $testResult->testRunnerTriggeredWarningEvents()),
+                // @phpstan-ignore-next-line
                 array_merge_recursive($testResultSum->errors(), $testResult->errors()),
+                // @phpstan-ignore-next-line
                 array_merge_recursive($testResultSum->deprecations(), $testResult->deprecations()),
+                // @phpstan-ignore-next-line
                 array_merge_recursive($testResultSum->notices(), $testResult->notices()),
+                // @phpstan-ignore-next-line
                 array_merge_recursive($testResultSum->warnings(), $testResult->warnings()),
+                // @phpstan-ignore-next-line
                 array_merge_recursive($testResultSum->phpDeprecations(), $testResult->phpDeprecations()),
+                // @phpstan-ignore-next-line
                 array_merge_recursive($testResultSum->phpNotices(), $testResult->phpNotices()),
+                // @phpstan-ignore-next-line
                 array_merge_recursive($testResultSum->phpWarnings(), $testResult->phpWarnings()),
                 $testResultSum->numberOfIssuesIgnoredByBaseline() + $testResult->numberOfIssuesIgnoredByBaseline(),
             );
@@ -328,8 +374,10 @@ final class WrapperRunner implements RunnerInterface
             $testResultSum->testMarkedIncompleteEvents(),
             $testResultSum->testTriggeredPhpunitDeprecationEvents(),
             $testResultSum->testTriggeredPhpunitErrorEvents(),
+            $testResultSum->testTriggeredPhpunitNoticeEvents(),
             $testResultSum->testTriggeredPhpunitWarningEvents(),
             $testResultSum->testRunnerTriggeredDeprecationEvents(),
+            $testResultSum->testRunnerTriggeredNoticeEvents(),
             array_values(array_filter(
                 $testResultSum->testRunnerTriggeredWarningEvents(),
                 fn (WarningTriggered $event): bool => ! str_contains($event->message(), 'No tests found')
@@ -342,9 +390,22 @@ final class WrapperRunner implements RunnerInterface
             $testResultSum->phpNotices(),
             $testResultSum->phpWarnings(),
             $testResultSum->numberOfIssuesIgnoredByBaseline(),
-
         );
 
+        self::$result = $testResultSum;
+
+        if ($this->options->configuration->cacheResult()) {
+            $resultCacheSum = new DefaultResultCache($this->options->configuration->testResultCacheFile());
+            foreach ($this->resultCacheFiles as $resultCacheFile) {
+                $resultCache = new DefaultResultCache($resultCacheFile->getPathname());
+                $resultCache->load();
+
+                $resultCacheSum->mergeWith($resultCache);
+            }
+
+            $resultCacheSum->persist();
+        }
+
         $this->printer->printResults(
             $testResultSum,
             $this->teamcityFiles,
@@ -357,7 +418,7 @@ final class WrapperRunner implements RunnerInterface
         $exitcode = Result::exitCode($this->options->configuration, $testResultSum);
 
         $this->clearFiles($this->unexpectedOutputFiles);
-        $this->clearFiles($this->testresultFiles);
+        $this->clearFiles($this->testResultFiles);
         $this->clearFiles($this->coverageFiles);
         $this->clearFiles($this->junitFiles);
         $this->clearFiles($this->teamcityFiles);
@@ -431,15 +492,61 @@ final class WrapperRunner implements RunnerInterface
      */
     private function getTestFiles(SuiteLoader $suiteLoader): array
     {
-        /** @var array<string, non-empty-string> $files */
-        $files = [
-            ...array_values(array_filter(
+        /** @var array<string, null> $files */
+        $files = [];
+
+        foreach (array_filter(
             $suiteLoader->tests,
             fn (string $filename): bool => ! str_ends_with($filename, "eval()'d code")
-            )),
-            ...TestSuite::getInstance()->tests->getFilenames(),
-        ];
+        ) as $filename) {
+            $resolved = realpath($filename) ?: $filename;
+            $files[$resolved] = null;
+        }
 
-        return $files; // @phpstan-ignore-line
+        foreach (TestSuite::getInstance()->tests->getFilenames() as $filename) {
+            if ($this->shouldIncludeBootstrappedTestFile($filename)) {
+                $resolved = realpath($filename)
+                    ?: realpath($this->options->cwd.DIRECTORY_SEPARATOR.$filename)
+                    ?: $filename;
+                $files[$resolved] = null;
+            }
+        }
+
+        return array_keys($files); // @phpstan-ignore-line
+    }
+
+    private function shouldIncludeBootstrappedTestFile(string $filename): bool
+    {
+        if (! $this->options->configuration->hasCliArguments()) {
+            return true;
+        }
+
+        $resolvedFilename = realpath($filename);
+
+        if ($resolvedFilename === false) {
+            $resolvedFilename = realpath($this->options->cwd.DIRECTORY_SEPARATOR.$filename);
+        }
+
+        if ($resolvedFilename === false) {
+            return false;
+        }
+
+        foreach ($this->options->configuration->cliArguments() as $path) {
+            $resolvedPath = realpath($path);
+
+            if ($resolvedPath === false) {
+                continue;
+            }
+
+            if ($resolvedFilename === $resolvedPath) {
+                return true;
+            }
+
+            if (is_dir($resolvedPath) && str_starts_with($resolvedFilename, $resolvedPath.DIRECTORY_SEPARATOR)) {
+                return true;
+            }
+        }
+
+        return false;
     }
 }

src/Plugins/Parallel/Support/CompactPrinter.php

@@ -34,7 +34,7 @@ final class CompactPrinter
     /**
      * @var array<string, array<int, string>>
      */
-    private const LOOKUP_TABLE = [
+    private const array LOOKUP_TABLE = [
         '.' => ['gray', '.'],
         'S' => ['yellow', 's'],
         'T' => ['cyan', 't'],
@@ -62,12 +62,12 @@ final class CompactPrinter
     /**
      * Creates a new instance of the Compact Printer.
      */
-    public static function default(): self
+    public static function default(bool $decorated = true): self
     {
         return new self(
             terminal(),
-            new ConsoleOutput(decorated: true),
-            new Style(new ConsoleOutput(decorated: true)),
+            new ConsoleOutput(decorated: $decorated),
+            new Style(new ConsoleOutput(decorated: $decorated)),
             terminal()->width() - 4,
         );
     }
@@ -131,14 +131,14 @@ final class CompactPrinter
             $status['collected'],
             $status['threshold'],
             $status['roots'],
-            null,
-            null,
-            null,
-            null,
-            null,
-            null,
-            null,
-            null,
+            0.00,
+            0.00,
+            0.00,
+            0.00,
+            false,
+            false,
+            false,
+            0,
         );
 
         $telemetry = new Info(

src/Plugins/Shard.php

@@ -0,0 +1,530 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins;
+
+use Pest\Contracts\Plugins\AddsOutput;
+use Pest\Contracts\Plugins\HandlesArguments;
+use Pest\Contracts\Plugins\Terminable;
+use Pest\Exceptions\InvalidOption;
+use Pest\Subscribers\EnsureShardTimingFinished;
+use Pest\Subscribers\EnsureShardTimingsAreCollected;
+use Pest\Subscribers\EnsureShardTimingStarted;
+use Pest\TestSuite;
+use PHPUnit\Event;
+use Symfony\Component\Console\Input\ArgvInput;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Process\Process;
+
+/**
+ * @internal
+ */
+final class Shard implements AddsOutput, HandlesArguments, Terminable
+{
+    use Concerns\HandleArguments;
+
+    private const string SHARD_OPTION = 'shard';
+
+    /**
+     * The shard index and total number of shards.
+     *
+     * @var array{
+     *     index: int,
+     *     total: int,
+     *     testsRan: int,
+     *     testsCount: int
+     * }|null
+     */
+    private static ?array $shard = null;
+
+    /**
+     * Whether to update the shards.json file.
+     */
+    private static bool $updateShards = false;
+
+    /**
+     * Whether time-balanced sharding was used.
+     */
+    private static bool $timeBalanced = false;
+
+    /**
+     * Whether the shards.json file is outdated.
+     */
+    private static bool $shardsOutdated = false;
+
+    /**
+     * Whether the test suite passed.
+     */
+    private static bool $passed = false;
+
+    /**
+     * Collected timings from workers or subscribers.
+     *
+     * @var array<string, float>|null
+     */
+    private static ?array $collectedTimings = null;
+
+    /**
+     * The canonical list of test classes from --list-tests.
+     *
+     * @var list<string>|null
+     */
+    private static ?array $knownTests = null;
+
+    /**
+     * Creates a new Plugin instance.
+     */
+    public function __construct(
+        private readonly OutputInterface $output,
+    ) {
+        //
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function handleArguments(array $arguments): array
+    {
+        if ($this->hasArgument('--update-shards', $arguments)) {
+            return $this->handleUpdateShards($arguments);
+        }
+
+        if (Parallel::isWorker() && Parallel::getGlobal('UPDATE_SHARDS') === true) {
+            self::$updateShards = true;
+
+            Event\Facade::instance()->registerSubscriber(new EnsureShardTimingStarted);
+            Event\Facade::instance()->registerSubscriber(new EnsureShardTimingFinished);
+
+            return $arguments;
+        }
+
+        if (! $this->hasArgument('--shard', $arguments)) {
+            return $arguments;
+        }
+
+        // @phpstan-ignore-next-line
+        $input = new ArgvInput($arguments);
+
+        ['index' => $index, 'total' => $total] = self::getShard($input);
+
+        $arguments = $this->popArgument("--shard=$index/$total", $this->popArgument('--shard', $this->popArgument(
+            "$index/$total",
+            $arguments,
+        )));
+
+        /** @phpstan-ignore-next-line */
+        $tests = $this->allTests($arguments);
+
+        $timings = $this->loadShardsFile();
+        if ($timings !== null) {
+            $knownTests = array_values(array_filter($tests, fn (string $test): bool => isset($timings[$test])));
+            $newTests = array_values(array_diff($tests, $knownTests));
+
+            $partitions = $this->partitionByTime($knownTests, $timings, $total);
+
+            foreach ($newTests as $i => $test) {
+                $partitions[$i % $total][] = $test;
+            }
+
+            $testsToRun = $partitions[$index - 1] ?? [];
+            self::$timeBalanced = true;
+            self::$shardsOutdated = $newTests !== [];
+        } else {
+            $testsToRun = (array_chunk($tests, max(1, (int) ceil(count($tests) / $total))))[$index - 1] ?? [];
+        }
+
+        self::$shard = [
+            'index' => $index,
+            'total' => $total,
+            'testsRan' => count($testsToRun),
+            'testsCount' => count($tests),
+        ];
+
+        if ($testsToRun === []) {
+            return $arguments;
+        }
+
+        return [...$arguments, '--filter', $this->buildFilterArgument($testsToRun)];
+    }
+
+    /**
+     * Handles the --update-shards argument.
+     *
+     * @param  array<int, string>  $arguments
+     * @return array<int, string>
+     */
+    private function handleUpdateShards(array $arguments): array
+    {
+        if ($this->hasArgument('--shard', $arguments)) {
+            throw new InvalidOption('The [--update-shards] option cannot be combined with [--shard].');
+        }
+
+        $arguments = $this->popArgument('--update-shards', $arguments);
+
+        self::$updateShards = true;
+
+        /** @phpstan-ignore-next-line */
+        self::$knownTests = $this->allTests($arguments);
+
+        if ($this->hasArgument('--parallel', $arguments) || $this->hasArgument('-p', $arguments)) {
+            Parallel::setGlobal('UPDATE_SHARDS', true);
+            Parallel::setGlobal('SHARD_RUN_ID', uniqid('pest-shard-', true));
+        } else {
+            Event\Facade::instance()->registerSubscriber(new EnsureShardTimingStarted);
+            Event\Facade::instance()->registerSubscriber(new EnsureShardTimingFinished);
+        }
+
+        return $arguments;
+    }
+
+    /**
+     * Returns all tests that the test suite would run.
+     *
+     * @param  list<string>  $arguments
+     * @return list<string>
+     */
+    private function allTests(array $arguments): array
+    {
+        $output = (new Process([
+            'php',
+            ...$this->removeParallelArguments($arguments),
+            '--list-tests',
+        ]))->setTimeout(120)->mustRun()->getOutput();
+
+        preg_match_all('/ - (?:P\\\\)?(Tests\\\\[^:]+)::/', $output, $matches);
+
+        return array_values(array_unique($matches[1]));
+    }
+
+    /**
+     * @param  array<int, string>  $arguments
+     * @return array<int, string>
+     */
+    private function removeParallelArguments(array $arguments): array
+    {
+        return array_filter($arguments, fn (string $argument): bool => ! in_array($argument, ['--parallel', '-p'], strict: true));
+    }
+
+    /**
+     * Builds the filter argument for the given tests to run.
+     */
+    private function buildFilterArgument(mixed $testsToRun): string
+    {
+        return addslashes(implode('|', $testsToRun));
+    }
+
+    /**
+     * Adds output after the Test Suite execution.
+     */
+    public function addOutput(int $exitCode): int
+    {
+        self::$passed = $exitCode === 0;
+
+        if (self::$updateShards && self::$passed && ! Parallel::isWorker()) {
+            self::$collectedTimings = $this->collectTimings();
+
+            $count = self::$knownTests !== null
+                ? count(array_intersect_key(self::$collectedTimings, array_flip(self::$knownTests)))
+                : count(self::$collectedTimings);
+
+            $this->output->writeln(sprintf(
+                '  <fg=gray>Shards:</>   <fg=default>shards.json updated with timings for %d test class%s.</>',
+                $count,
+                $count === 1 ? '' : 'es',
+            ));
+        }
+
+        if (self::$shard === null) {
+            return $exitCode;
+        }
+
+        [
+            'index' => $index,
+            'total' => $total,
+            'testsRan' => $testsRan,
+            'testsCount' => $testsCount,
+        ] = self::$shard;
+
+        $this->output->writeln(sprintf(
+            '  <fg=gray>Shard:</>    <fg=default>%d of %d</> — %d file%s ran, out of %d%s.',
+            $index,
+            $total,
+            $testsRan,
+            $testsRan === 1 ? '' : 's',
+            $testsCount,
+            self::$timeBalanced ? ' <fg=gray>(time-balanced)</>' : '',
+        ));
+
+        if (self::$shardsOutdated) {
+            $this->output->writeln('  <fg=yellow;options=bold>WARN</>  <fg=default>The [tests/.pest/shards.json] file is out of date. Run [--update-shards] to update it.</>');
+        }
+
+        return $exitCode;
+    }
+
+    /**
+     * Terminates the plugin.
+     */
+    public function terminate(): void
+    {
+        if (! self::$updateShards) {
+            return;
+        }
+
+        if (Parallel::isWorker()) {
+            $this->writeWorkerTimings();
+
+            return;
+        }
+
+        if (! self::$passed) {
+            return;
+        }
+
+        $timings = self::$collectedTimings ?? $this->collectTimings();
+
+        if ($timings === []) {
+            return;
+        }
+
+        $this->writeTimings($timings);
+    }
+
+    /**
+     * Collects timings from subscribers or worker temp files.
+     *
+     * @return array<string, float>
+     */
+    private function collectTimings(): array
+    {
+        $runId = Parallel::getGlobal('SHARD_RUN_ID');
+
+        if (is_string($runId)) {
+            return $this->readWorkerTimings($runId);
+        }
+
+        return EnsureShardTimingsAreCollected::timings();
+    }
+
+    /**
+     * Writes the current worker's timing data to a temp file.
+     */
+    private function writeWorkerTimings(): void
+    {
+        $timings = EnsureShardTimingsAreCollected::timings();
+
+        if ($timings === []) {
+            return;
+        }
+
+        $runId = Parallel::getGlobal('SHARD_RUN_ID');
+
+        if (! is_string($runId)) {
+            return;
+        }
+
+        $path = sys_get_temp_dir().DIRECTORY_SEPARATOR.'__pest_sharding_'.$runId.'-'.getmypid().'.json';
+
+        file_put_contents($path, json_encode($timings, JSON_THROW_ON_ERROR));
+    }
+
+    /**
+     * Reads and merges timing data from all worker temp files.
+     *
+     * @return array<string, float>
+     */
+    private function readWorkerTimings(string $runId): array
+    {
+        $pattern = sys_get_temp_dir().DIRECTORY_SEPARATOR.'__pest_sharding_'.$runId.'-*.json';
+        $files = glob($pattern);
+
+        if ($files === false || $files === []) {
+            return [];
+        }
+
+        $merged = [];
+
+        foreach ($files as $file) {
+            $contents = file_get_contents($file);
+
+            if ($contents === false) {
+                continue;
+            }
+
+            $timings = json_decode($contents, true);
+
+            if (is_array($timings)) {
+                $merged = array_merge($merged, $timings);
+            }
+
+            unlink($file);
+        }
+
+        return $merged;
+    }
+
+    /**
+     * Returns the path to shards.json.
+     */
+    private function shardsPath(): string
+    {
+        $testSuite = TestSuite::getInstance();
+
+        return implode(DIRECTORY_SEPARATOR, [$testSuite->rootPath, $testSuite->testPath, '.pest', 'shards.json']);
+    }
+
+    /**
+     * Loads the timings from shards.json.
+     *
+     * @return array<string, float>|null
+     */
+    private function loadShardsFile(): ?array
+    {
+        $path = $this->shardsPath();
+
+        if (! file_exists($path)) {
+            return null;
+        }
+
+        $contents = file_get_contents($path);
+
+        if ($contents === false) {
+            throw new InvalidOption('The [tests/.pest/shards.json] file could not be read. Delete it or run [--update-shards] to regenerate.');
+        }
+
+        $data = json_decode($contents, true);
+
+        if (! is_array($data) || ! isset($data['timings']) || ! is_array($data['timings'])) {
+            throw new InvalidOption('The [tests/.pest/shards.json] file is corrupted. Delete it or run [--update-shards] to regenerate.');
+        }
+
+        return $data['timings'];
+    }
+
+    /**
+     * Partitions tests across shards using the LPT (Longest Processing Time) algorithm.
+     *
+     * @param  list<string>  $tests
+     * @param  array<string, float>  $timings
+     * @return list<list<string>>
+     */
+    private function partitionByTime(array $tests, array $timings, int $total): array
+    {
+        $knownTimings = array_filter(
+            array_map(fn (string $test): ?float => $timings[$test] ?? null, $tests),
+            fn (?float $t): bool => $t !== null,
+        );
+
+        $median = $knownTimings !== [] ? $this->median(array_values($knownTimings)) : 1.0;
+
+        $testsWithTimings = array_map(
+            fn (string $test): array => ['test' => $test, 'time' => $timings[$test] ?? $median],
+            $tests,
+        );
+
+        usort($testsWithTimings, fn (array $a, array $b): int => $b['time'] <=> $a['time']);
+
+        /** @var list<list<string>> */
+        $bins = array_fill(0, $total, []);
+        /** @var non-empty-list<float> */
+        $binTimes = array_fill(0, $total, 0.0);
+
+        foreach ($testsWithTimings as $item) {
+            $minIndex = array_search(min($binTimes), $binTimes, strict: true);
+            assert(is_int($minIndex));
+
+            $bins[$minIndex][] = $item['test'];
+            $binTimes[$minIndex] += $item['time'];
+        }
+
+        return $bins;
+    }
+
+    /**
+     * Calculates the median of an array of floats.
+     *
+     * @param  list<float>  $values
+     */
+    private function median(array $values): float
+    {
+        sort($values);
+
+        $count = count($values);
+        $middle = (int) floor($count / 2);
+
+        if ($count % 2 === 0) {
+            return ($values[$middle - 1] + $values[$middle]) / 2;
+        }
+
+        return $values[$middle];
+    }
+
+    /**
+     * Writes the timings to shards.json.
+     *
+     * @param  array<string, float>  $timings
+     */
+    private function writeTimings(array $timings): void
+    {
+        $path = $this->shardsPath();
+
+        $directory = dirname($path);
+        if (! is_dir($directory)) {
+            mkdir($directory, 0755, true);
+        }
+
+        if (self::$knownTests !== null) {
+            $knownSet = array_flip(self::$knownTests);
+            $timings = array_intersect_key($timings, $knownSet);
+        }
+
+        ksort($timings);
+
+        $canonical = self::$knownTests ?? array_keys($timings);
+        sort($canonical);
+
+        file_put_contents($path, json_encode([
+            'timings' => $timings,
+            'checksum' => md5(implode("\n", $canonical)),
+            'updated_at' => date('c'),
+        ], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES)."\n");
+    }
+
+    /**
+     * Returns the shard information.
+     *
+     * @return array{index: int, total: int}
+     */
+    public static function getShard(InputInterface $input): array
+    {
+        if ($input->hasParameterOption('--'.self::SHARD_OPTION)) {
+            $shard = $input->getParameterOption('--'.self::SHARD_OPTION);
+        } else {
+            $shard = null;
+        }
+
+        if (! is_string($shard) || ! preg_match('/^\d+\/\d+$/', $shard)) {
+            throw new InvalidOption('The [--shard] option must be in the format "index/total".');
+        }
+
+        [$index, $total] = explode('/', $shard);
+
+        if (! is_numeric($index) || ! is_numeric($total)) {
+            throw new InvalidOption('The [--shard] option must be in the format "index/total".');
+        }
+
+        if ($index <= 0 || $total <= 0 || $index > $total) {
+            throw new InvalidOption('The [--shard] option index must be a non-negative integer less than the total number of shards.');
+        }
+
+        $index = (int) $index;
+        $total = (int) $total;
+
+        return [
+            'index' => $index,
+            'total' => $total,
+        ];
+    }
+}

src/Plugins/Snapshot.php

@@ -5,7 +5,6 @@ declare(strict_types=1);
 namespace Pest\Plugins;
 
 use Pest\Contracts\Plugins\HandlesArguments;
-use Pest\Exceptions\InvalidOption;
 use Pest\TestSuite;
 
 /**
@@ -15,21 +14,116 @@ final class Snapshot implements HandlesArguments
 {
     use Concerns\HandleArguments;
 
+    /**
+     * Whether snapshots should be updated on this run.
+     */
+    public static bool $updateSnapshots = false;
+
     /**
      * {@inheritDoc}
      */
     public function handleArguments(array $arguments): array
     {
+        if (Parallel::isWorker() && Parallel::getGlobal('UPDATE_SNAPSHOTS') === true) {
+            self::$updateSnapshots = true;
+
+            return $arguments;
+        }
+
         if (! $this->hasArgument('--update-snapshots', $arguments)) {
             return $arguments;
         }
 
-        if ($this->hasArgument('--parallel', $arguments)) {
-            throw new InvalidOption('The [--update-snapshots] option is not supported when running in parallel.');
+        self::$updateSnapshots = true;
+
+        if ($this->isFullRun($arguments)) {
+            TestSuite::getInstance()->snapshots->flush();
         }
 
-        TestSuite::getInstance()->snapshots->flush();
+        if ($this->hasArgument('--parallel', $arguments) || $this->hasArgument('-p', $arguments)) {
+            Parallel::setGlobal('UPDATE_SNAPSHOTS', true);
+        }
 
         return $this->popArgument('--update-snapshots', $arguments);
     }
+
+    /**
+     * Options that take a value as the next argument (rather than via "=value").
+     *
+     * @var list<string>
+     */
+    private const array FLAGS_WITH_VALUES = [
+        '--filter',
+        '--group',
+        '--exclude-group',
+        '--test-suffix',
+        '--covers',
+        '--uses',
+        '--cache-directory',
+        '--cache-result-file',
+        '--configuration',
+        '--colors',
+        '--test-directory',
+        '--bootstrap',
+        '--order-by',
+        '--random-order-seed',
+        '--log-junit',
+        '--log-teamcity',
+        '--log-events-text',
+        '--log-events-verbose-text',
+        '--coverage-clover',
+        '--coverage-cobertura',
+        '--coverage-crap4j',
+        '--coverage-html',
+        '--coverage-php',
+        '--coverage-text',
+        '--coverage-xml',
+        '--assignee',
+        '--issue',
+        '--ticket',
+        '--pr',
+        '--pull-request',
+        '--retry',
+        '--shard',
+        '--repeat',
+    ];
+
+    /**
+     * Determines whether the command targets the entire suite (no filter, no path).
+     *
+     * @param  array<int, string>  $arguments
+     */
+    private function isFullRun(array $arguments): bool
+    {
+        if ($this->hasArgument('--filter', $arguments)) {
+            return false;
+        }
+
+        $tokens = array_slice($arguments, 1);
+        $skipNext = false;
+
+        foreach ($tokens as $arg) {
+            if ($skipNext) {
+                $skipNext = false;
+
+                continue;
+            }
+
+            if ($arg === '') {
+                continue;
+            }
+
+            if ($arg[0] === '-') {
+                if (in_array($arg, self::FLAGS_WITH_VALUES, true)) {
+                    $skipNext = true;
+                }
+
+                continue;
+            }
+
+            return false;
+        }
+
+        return true;
+    }
 }

src/Plugins/Tia/BaselineSync.php

@@ -0,0 +1,510 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use Composer\InstalledVersions;
+use Pest\Plugins\Tia;
+use Pest\Plugins\Tia\Contracts\State;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Process\Process;
+
+/**
+ * Pulls a team-shared TIA baseline on the first `--tia` run so new
+ * contributors and fresh CI workspaces start in replay mode instead of
+ * paying the ~30s record cost.
+ *
+ * Storage: **workflow artifacts**, not releases. A dedicated CI workflow
+ * (conventionally `.github/workflows/tia-baseline.yml`) runs the full
+ * suite under `--tia` and uploads the `.pest/tia/` directory as a named
+ * artifact (`pest-tia-baseline`) containing `graph.json` +
+ * `coverage.bin`. On dev
+ * machines, this class finds the latest successful run of that workflow
+ * and downloads the artifact via `gh`.
+ *
+ * Why artifacts, not releases:
+ *   - No tag is created → no `push` event cascade into CI workflows.
+ *   - No release event → no deploy workflows tied to `release:published`.
+ *   - Retention is run-scoped and tunable (1-90 days) instead of clobbering
+ *     a single floating tag.
+ *   - Publishing is strictly CI-only: artifacts can't be produced from a
+ *     developer's laptop. This enforces the "CI is the authoritative
+ *     publisher" policy that local-publish paths would otherwise erode.
+ *
+ * Fingerprint validation happens back in `Tia::handleParent` after the
+ * blobs are written: a mismatched environment (different PHP version,
+ * composer.lock, etc.) discards the pulled baseline and falls through to
+ * the regular record path.
+ *
+ * @internal
+ */
+final readonly class BaselineSync
+{
+    /**
+     * Conventional workflow filename teams publish from. Not configurable
+     * for MVP — teams that outgrow the default can set
+     * `PEST_TIA_BASELINE_WORKFLOW` later.
+     */
+    private const string WORKFLOW_FILE = 'tia-baseline.yml';
+
+    /**
+     * Artifact name the workflow uploads under. The artifact is a zip
+     * containing `graph.json` (always) + `coverage.bin` (optional).
+     */
+    private const string ARTIFACT_NAME = 'pest-tia-baseline';
+
+    /**
+     * Asset filenames inside the artifact — mirror the state keys so the
+     * CI publisher and the sync consumer stay in lock-step.
+     */
+    private const string GRAPH_ASSET = Tia::KEY_GRAPH;
+
+    private const string COVERAGE_ASSET = Tia::KEY_COVERAGE_CACHE;
+
+    /**
+     * Cooldown (in seconds) applied after a failed baseline fetch.
+     * Rationale: when the remote workflow hasn't published yet, every
+     * `pest --tia` invocation would otherwise re-hit `gh run list` and
+     * re-print the publish instructions — noisy + slow. Back off for a
+     * day, let the user override with `--tia-refetch`.
+     */
+    private const int FETCH_COOLDOWN_SECONDS = 86400;
+
+    public function __construct(
+        private State $state,
+        private OutputInterface $output,
+    ) {}
+
+    /**
+     * Detects the repo, fetches the latest baseline artifact, writes its
+     * contents into the TIA state store. Returns true when the graph blob
+     * landed; coverage is best-effort since plain `--tia` (no `--coverage`)
+     * never reads it.
+     *
+     * `$force = true` (driven by `--tia-refetch`) ignores the post-failure
+     * cooldown so the user can retry on demand without waiting out the
+     * 24h window.
+     */
+    public function fetchIfAvailable(string $projectRoot, bool $force = false): bool
+    {
+        $repo = $this->detectGitHubRepo($projectRoot);
+
+        if ($repo === null) {
+            return false;
+        }
+
+        if (! $force && ($remaining = $this->cooldownRemaining()) !== null) {
+            $this->output->writeln(sprintf(
+                '  <fg=yellow>TIA</> last fetch found no baseline — next auto-retry in %s. '
+                    .'Override with <fg=cyan>--tia-refetch</>.',
+                $this->formatDuration($remaining),
+            ));
+
+            return false;
+        }
+
+        $this->output->writeln(sprintf(
+            '  <fg=cyan>TIA</> fetching baseline from <fg=white>%s</>…',
+            $repo,
+        ));
+
+        $payload = $this->download($repo);
+
+        if ($payload === null) {
+            $this->startCooldown();
+            $this->emitPublishInstructions($repo);
+
+            return false;
+        }
+
+        if (! $this->state->write(Tia::KEY_GRAPH, $payload['graph'])) {
+            return false;
+        }
+
+        if ($payload['coverage'] !== null) {
+            $this->state->write(Tia::KEY_COVERAGE_CACHE, $payload['coverage']);
+        }
+
+        // Successful fetch wipes any stale cooldown so the next failure
+        // (say, weeks later) starts a fresh 24h timer rather than inheriting
+        // one from the deep past.
+        $this->clearCooldown();
+
+        $this->output->writeln(sprintf(
+            '  <fg=green>TIA</> baseline ready (%s).',
+            $this->formatSize(strlen($payload['graph']) + strlen($payload['coverage'] ?? '')),
+        ));
+
+        return true;
+    }
+
+    /**
+     * Seconds left on the cooldown, or `null` when the cooldown is cleared
+     * / expired / unreadable.
+     */
+    private function cooldownRemaining(): ?int
+    {
+        $raw = $this->state->read(Tia::KEY_FETCH_COOLDOWN);
+
+        if ($raw === null) {
+            return null;
+        }
+
+        $decoded = json_decode($raw, true);
+
+        if (! is_array($decoded) || ! isset($decoded['until']) || ! is_int($decoded['until'])) {
+            return null;
+        }
+
+        $remaining = $decoded['until'] - time();
+
+        return $remaining > 0 ? $remaining : null;
+    }
+
+    private function startCooldown(): void
+    {
+        $this->state->write(Tia::KEY_FETCH_COOLDOWN, (string) json_encode([
+            'until' => time() + self::FETCH_COOLDOWN_SECONDS,
+        ]));
+    }
+
+    private function clearCooldown(): void
+    {
+        $this->state->delete(Tia::KEY_FETCH_COOLDOWN);
+    }
+
+    private function formatDuration(int $seconds): string
+    {
+        if ($seconds >= 3600) {
+            return (int) round($seconds / 3600).'h';
+        }
+
+        if ($seconds >= 60) {
+            return (int) round($seconds / 60).'m';
+        }
+
+        return $seconds.'s';
+    }
+
+    /**
+     * Prints actionable instructions for publishing a first baseline when
+     * the consumer-side fetch finds nothing.
+     *
+     * Behaviour splits on environment:
+     *   - **CI:** a single line. The current run is almost certainly *the*
+     *     publisher (it's what this workflow does by definition), so
+     *     printing the whole recipe again is redundant and noisy.
+     *   - **Local:** the full recipe, adapted to Laravel's pre-test steps
+     *     (`.env.example` copy + `artisan key:generate`) when the framework
+     *     is present. Generic PHP projects get a slimmer skeleton.
+     */
+    private function emitPublishInstructions(string $repo): void
+    {
+        if ($this->isCi()) {
+            $this->output->writeln(
+                '  <fg=yellow>TIA</> no baseline yet — this run will produce one.',
+            );
+
+            return;
+        }
+
+        $yaml = $this->isLaravel()
+            ? $this->laravelWorkflowYaml()
+            : $this->genericWorkflowYaml();
+
+        $preamble = [
+            '  <fg=yellow>TIA</> no baseline published yet — recording locally.',
+            '',
+            '  To share the baseline with your team, add this workflow to the repo:',
+            '',
+            '    <fg=cyan>.github/workflows/tia-baseline.yml</>',
+            '',
+        ];
+
+        $indentedYaml = array_map(
+            static fn (string $line): string => '      '.$line,
+            explode("\n", $yaml),
+        );
+
+        $trailer = [
+            '',
+            sprintf('  Commit, push, then run once:  <fg=cyan>gh workflow run tia-baseline.yml -R %s</>', $repo),
+            '  Details: <fg=gray>https://pestphp.com/docs/tia/ci</>',
+            '',
+        ];
+
+        $this->output->writeln([...$preamble, ...$indentedYaml, ...$trailer]);
+    }
+
+    /**
+     * True when running inside a CI provider. Conservative list — only the
+     * three providers Pest formally supports / sees in the wild. `CI=true`
+     * alone is ambiguous (users set it locally too) so we require a
+     * provider-specific flag.
+     */
+    private function isCi(): bool
+    {
+        return getenv('GITHUB_ACTIONS') === 'true'
+            || getenv('GITLAB_CI') === 'true'
+            || getenv('CIRCLECI') === 'true';
+    }
+
+    private function isLaravel(): bool
+    {
+        return class_exists(InstalledVersions::class)
+            && InstalledVersions::isInstalled('laravel/framework');
+    }
+
+    /**
+     * Laravel projects need a populated `.env` and a generated `APP_KEY`
+     * before the first boot, otherwise `Illuminate\Encryption\MissingAppKeyException`
+     * fires during `setUp`. Include the standard pre-test dance plus the
+     * extension set typical Laravel apps rely on.
+     */
+    private function laravelWorkflowYaml(): string
+    {
+        return <<<'YAML'
+name: TIA Baseline
+on:
+  push: { branches: [main] }
+  schedule: [{ cron: '0 3 * * *' }]
+  workflow_dispatch:
+jobs:
+  baseline:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with: { fetch-depth: 0 }
+      - uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.4'
+          coverage: xdebug
+          extensions: json, dom, curl, libxml, mbstring, zip, pdo, pdo_sqlite, sqlite3, bcmath, intl
+      - run: cp .env.example .env
+      - run: composer install --no-interaction --prefer-dist
+      - run: php artisan key:generate
+      - run: ./vendor/bin/pest --parallel --tia --coverage
+      - name: Stage baseline for upload
+        shell: bash
+        run: |
+          mkdir -p .pest-tia-baseline
+          cp -R "$HOME/.pest/tia"/*/. .pest-tia-baseline/
+      - uses: actions/upload-artifact@v4
+        with:
+          name: pest-tia-baseline
+          path: .pest-tia-baseline/
+          retention-days: 30
+YAML;
+    }
+
+    private function genericWorkflowYaml(): string
+    {
+        return <<<'YAML'
+name: TIA Baseline
+on:
+  push: { branches: [main] }
+  schedule: [{ cron: '0 3 * * *' }]
+  workflow_dispatch:
+jobs:
+  baseline:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with: { fetch-depth: 0 }
+      - uses: shivammathur/setup-php@v2
+        with: { php-version: '8.4', coverage: xdebug }
+      - run: composer install --no-interaction --prefer-dist
+      - run: ./vendor/bin/pest --parallel --tia --coverage
+      - name: Stage baseline for upload
+        shell: bash
+        run: |
+          mkdir -p .pest-tia-baseline
+          cp -R "$HOME/.pest/tia"/*/. .pest-tia-baseline/
+      - uses: actions/upload-artifact@v4
+        with:
+          name: pest-tia-baseline
+          path: .pest-tia-baseline/
+          retention-days: 30
+YAML;
+    }
+
+    /**
+     * Parses `.git/config` for the `origin` remote and extracts
+     * `org/repo`. Supports the two URL flavours git emits out of the box.
+     * Non-GitHub remotes (GitLab, Bitbucket, self-hosted) → null, which
+     * silently opts the repo out of auto-sync.
+     */
+    private function detectGitHubRepo(string $projectRoot): ?string
+    {
+        $gitConfig = $projectRoot.DIRECTORY_SEPARATOR.'.git'.DIRECTORY_SEPARATOR.'config';
+
+        if (! is_file($gitConfig)) {
+            return null;
+        }
+
+        $content = @file_get_contents($gitConfig);
+
+        if ($content === false) {
+            return null;
+        }
+
+        // Find the `[remote "origin"]` section and the first `url` line
+        // inside it. Tolerates INI whitespace quirks (tabs, CRLF).
+        if (preg_match('/\[remote "origin"\][^\[]*?url\s*=\s*(\S+)/s', $content, $match) !== 1) {
+            return null;
+        }
+
+        $url = $match[1];
+
+        // SSH: git@github.com:org/repo(.git)
+        if (preg_match('#^git@github\.com:([\w.-]+/[\w.-]+?)(?:\.git)?$#', $url, $m) === 1) {
+            return $m[1];
+        }
+
+        // HTTPS: https://github.com/org/repo(.git) (optional trailing slash)
+        if (preg_match('#^https?://github\.com/([\w.-]+/[\w.-]+?)(?:\.git)?/?$#', $url, $m) === 1) {
+            return $m[1];
+        }
+
+        return null;
+    }
+
+    /**
+     * Two-step fetch: find the latest successful run of the baseline
+     * workflow, then download the named artifact from it. Returns
+     * `['graph' => bytes, 'coverage' => bytes|null]` on success, or null
+     * if `gh` is unavailable, the workflow hasn't run yet, the artifact
+     * is missing, or any shell step fails.
+     *
+     * @return array{graph: string, coverage: ?string}|null
+     */
+    private function download(string $repo): ?array
+    {
+        if (! $this->commandExists('gh')) {
+            return null;
+        }
+
+        $runId = $this->latestSuccessfulRunId($repo);
+
+        if ($runId === null) {
+            return null;
+        }
+
+        $tmpDir = sys_get_temp_dir().DIRECTORY_SEPARATOR.'pest-tia-'.bin2hex(random_bytes(4));
+
+        if (! @mkdir($tmpDir, 0755, true) && ! is_dir($tmpDir)) {
+            return null;
+        }
+
+        $process = new Process([
+            'gh', 'run', 'download', $runId,
+            '-R', $repo,
+            '-n', self::ARTIFACT_NAME,
+            '-D', $tmpDir,
+        ]);
+        $process->setTimeout(120.0);
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            $this->cleanup($tmpDir);
+
+            return null;
+        }
+
+        $graphPath = $tmpDir.DIRECTORY_SEPARATOR.self::GRAPH_ASSET;
+        $coveragePath = $tmpDir.DIRECTORY_SEPARATOR.self::COVERAGE_ASSET;
+
+        $graph = is_file($graphPath) ? @file_get_contents($graphPath) : false;
+
+        if ($graph === false) {
+            $this->cleanup($tmpDir);
+
+            return null;
+        }
+
+        $coverage = is_file($coveragePath) ? @file_get_contents($coveragePath) : false;
+
+        $this->cleanup($tmpDir);
+
+        return [
+            'graph' => $graph,
+            'coverage' => $coverage === false ? null : $coverage,
+        ];
+    }
+
+    /**
+     * Queries GitHub for the most recent successful run of the baseline
+     * workflow. `--jq '.[0].databaseId // empty'` coerces "no runs found"
+     * into an empty string, which we map to null.
+     */
+    private function latestSuccessfulRunId(string $repo): ?string
+    {
+        $process = new Process([
+            'gh', 'run', 'list',
+            '-R', $repo,
+            '--workflow', self::WORKFLOW_FILE,
+            '--status', 'success',
+            '--limit', '1',
+            '--json', 'databaseId',
+            '--jq', '.[0].databaseId // empty',
+        ]);
+        $process->setTimeout(30.0);
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            return null;
+        }
+
+        $runId = trim($process->getOutput());
+
+        return $runId === '' ? null : $runId;
+    }
+
+    private function commandExists(string $cmd): bool
+    {
+        $probe = new Process(['command', '-v', $cmd]);
+        $probe->run();
+
+        if ($probe->isSuccessful()) {
+            return true;
+        }
+
+        $which = new Process(['which', $cmd]);
+        $which->run();
+
+        return $which->isSuccessful();
+    }
+
+    private function cleanup(string $dir): void
+    {
+        if (! is_dir($dir)) {
+            return;
+        }
+
+        $entries = glob($dir.DIRECTORY_SEPARATOR.'*');
+
+        if ($entries !== false) {
+            foreach ($entries as $entry) {
+                if (is_file($entry)) {
+                    @unlink($entry);
+                }
+            }
+        }
+
+        @rmdir($dir);
+    }
+
+    private function formatSize(int $bytes): string
+    {
+        if ($bytes >= 1024 * 1024) {
+            return sprintf('%.1f MB', $bytes / 1024 / 1024);
+        }
+
+        if ($bytes >= 1024) {
+            return sprintf('%.1f KB', $bytes / 1024);
+        }
+
+        return $bytes.' B';
+    }
+}

src/Plugins/Tia/BladeEdges.php

@@ -0,0 +1,92 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+/**
+ * Laravel-only collaborator: during record mode, attributes every
+ * rendered Blade view to the currently-running test.
+ *
+ * Why this exists: the coverage driver only sees compiled view files
+ * under `storage/framework/views/<hash>.php`, not the `.blade.php`
+ * source. Without a dedicated hook TIA has no edges for blade files,
+ * so it leans on the Laravel WatchDefault's broad "any .blade.php
+ * change → every feature test" fallback. Safe but noisy — editing a
+ * single partial re-runs the whole suite.
+ *
+ * With this armed at record time, each test's edge set grows to
+ * include the precise `.blade.php` files it rendered (directly or
+ * through `@include`, layouts, components, Livewire, Inertia root
+ * views — anything that goes through Laravel's view factory fires
+ * `View::composer('*')`). Replay then invalidates exactly the tests
+ * that rendered the changed template.
+ *
+ * Implementation note: everything Laravel-touching goes through
+ * string class names, `class_exists`, and `method_exists` so Pest
+ * core doesn't pull `illuminate/container` into its `require`.
+ *
+ * @internal
+ */
+final class BladeEdges
+{
+    private const string CONTAINER_CLASS = '\\Illuminate\\Container\\Container';
+
+    /**
+     * App-scoped marker that makes `arm()` idempotent. Tests call it
+     * from every `setUp()`, and Laravel reuses the same app instance
+     * across tests in most configurations — without this guard we'd
+     * stack one composer per test and replay every one of them on
+     * every view render.
+     */
+    private const string MARKER = 'pest.tia.blade-edges-armed';
+
+    public static function arm(Recorder $recorder): void
+    {
+        if (! $recorder->isActive()) {
+            return;
+        }
+
+        $containerClass = self::CONTAINER_CLASS;
+
+        if (! class_exists($containerClass)) {
+            return;
+        }
+
+        /** @var object $app */
+        $app = $containerClass::getInstance();
+
+        if (! method_exists($app, 'bound') || ! method_exists($app, 'make') || ! method_exists($app, 'instance')) {
+            return;
+        }
+
+        if ($app->bound(self::MARKER)) {
+            return;
+        }
+
+        if (! $app->bound('view')) {
+            return;
+        }
+
+        $app->instance(self::MARKER, true);
+
+        $factory = $app->make('view');
+
+        if (! is_object($factory) || ! method_exists($factory, 'composer')) {
+            return;
+        }
+
+        $factory->composer('*', static function (object $view) use ($recorder): void {
+            if (! method_exists($view, 'getPath')) {
+                return;
+            }
+
+            /** @var mixed $path */
+            $path = $view->getPath();
+
+            if (is_string($path) && $path !== '') {
+                $recorder->linkSource($path);
+            }
+        });
+    }
+}

src/Plugins/Tia/Bootstrapper.php

@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use Pest\Contracts\Bootstrapper as BootstrapperContract;
+use Pest\Plugins\Tia\Contracts\State;
+use Pest\Support\Container;
+use Pest\TestSuite;
+
+/**
+ * Plugin-level container registrations for TIA. Runs as part of Kernel's
+ * bootstrapper chain so Tia's own service graph is set up without Kernel
+ * having to know about any of its internals.
+ *
+ * Most Tia services (`Recorder`, `CoverageCollector`, `WatchPatterns`,
+ * `ResultCollector`, `BaselineSync`) are auto-buildable — Pest's container
+ * resolves them lazily via constructor reflection. The only service that
+ * requires an explicit binding is the `State` contract, because the
+ * filesystem implementation needs a root-directory string that reflection
+ * can't infer.
+ *
+ * @internal
+ */
+final readonly class Bootstrapper implements BootstrapperContract
+{
+    public function __construct(private Container $container) {}
+
+    public function boot(): void
+    {
+        $this->container->add(State::class, new FileState($this->tempDir()));
+    }
+
+    /**
+     * TIA's per-project state directory. Default layout is
+     * `~/.pest/tia/<project-key>/` so the graph survives `composer
+     * install`, stays out of the project tree, and is naturally shared
+     * across worktrees of the same repo. See {@see Storage} for the key
+     * derivation and the home-dir-missing fallback.
+     */
+    private function tempDir(): string
+    {
+        $testSuite = $this->container->get(TestSuite::class);
+        assert($testSuite instanceof TestSuite);
+
+        return Storage::tempDir($testSuite->rootPath);
+    }
+}

src/Plugins/Tia/ChangedFiles.php

@@ -0,0 +1,444 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use Symfony\Component\Process\Process;
+
+/**
+ * Detects files that changed between the last recorded TIA run and the
+ * current working tree.
+ *
+ * Strategy:
+ *   1. If we have a `recordedAtSha`, `git diff <sha>..HEAD` captures committed
+ *      changes on top of the recording point.
+ *   2. `git status --short` captures unstaged + staged + untracked changes on
+ *      top of that.
+ *
+ * We return relative paths to the project root. Deletions are included so the
+ * caller can decide whether to invalidate: a deleted source file may still
+ * appear in the graph and should mark its dependents as affected.
+ *
+ * @internal
+ */
+final readonly class ChangedFiles
+{
+    public function __construct(private string $projectRoot) {}
+
+    /**
+     * @return array<int, string>|null `null` when git is unavailable, or when
+     *                                 the recorded SHA is no longer reachable
+     *                                 from HEAD (rebase / force-push) — in
+     *                                 that case the graph should be rebuilt.
+     */
+    /**
+     * Removes files whose current content hash matches the snapshot from the
+     * last `--tia` run. Used to ignore "dirty but unchanged" files — a file
+     * that git still reports as modified but whose content is bit-identical
+     * to the previous TIA invocation.
+     *
+     * @param  array<int, string>  $files  project-relative paths.
+     * @param  array<string, string>  $lastRunTree  path → content hash from last run.
+     * @return array<int, string>
+     */
+    public function filterUnchangedSinceLastRun(array $files, array $lastRunTree, ?string $sha = null): array
+    {
+        if ($lastRunTree === []) {
+            return $files;
+        }
+
+        // Union: `$files` (what git currently reports) + every path that was
+        // dirty last run. The second set matters for reverts — when a user
+        // undoes a local edit, the file matches HEAD again and git reports
+        // it clean, so it would never enter `$files`. But it has genuinely
+        // changed vs the snapshot we captured during the bad run, so it
+        // must be checked.
+        $candidates = array_fill_keys($files, true);
+
+        foreach (array_keys($lastRunTree) as $snapshotted) {
+            $candidates[$snapshotted] = true;
+        }
+
+        $remaining = [];
+
+        foreach (array_keys($candidates) as $file) {
+            $snapshot = $lastRunTree[$file] ?? null;
+            $absolute = $this->projectRoot.DIRECTORY_SEPARATOR.$file;
+            $exists = is_file($absolute);
+
+            if ($snapshot === null) {
+                // File wasn't in last-run tree at all — trust git's signal.
+                $remaining[] = $file;
+
+                continue;
+            }
+
+            if (! $exists) {
+                // Missing now. If the snapshot recorded it as absent too
+                // (sentinel ''), state is identical to last run — unchanged.
+                // Otherwise it was present last run and got deleted since.
+                if ($snapshot !== '') {
+                    $remaining[] = $file;
+                }
+
+                continue;
+            }
+
+            $hash = ContentHash::of($absolute);
+
+            if ($hash === false) {
+                $remaining[] = $file;
+
+                continue;
+            }
+
+            if ($hash === $snapshot) {
+                // Same state as the last TIA invocation — unchanged.
+                continue;
+            }
+
+            // Differs from the snapshot, but may still be a revert back
+            // to the committed version (scenario: last run had an edit,
+            // this run reverted it). Skipping this check causes stale
+            // snapshots from previous scenarios to cascade into the
+            // current run's invalidation set. Cheap to verify via
+            // `git show <sha>:<path>`.
+            if ($sha !== null && $sha !== '') {
+                $baselineContent = $this->contentAtSha($sha, $file);
+
+                if ($baselineContent !== null) {
+                    $baselineHash = ContentHash::ofContent($file, $baselineContent);
+
+                    if ($hash === $baselineHash) {
+                        continue;
+                    }
+                }
+            }
+
+            $remaining[] = $file;
+        }
+
+        return $remaining;
+    }
+
+    /**
+     * Computes content hashes for the given project-relative files. Used to
+     * snapshot the working tree after a successful run so the next run can
+     * detect which files are actually different.
+     *
+     * @param  array<int, string>  $files
+     * @return array<string, string> path → xxh128 content hash
+     */
+    public function snapshotTree(array $files): array
+    {
+        $out = [];
+
+        foreach ($files as $file) {
+            $absolute = $this->projectRoot.DIRECTORY_SEPARATOR.$file;
+
+            if (! is_file($absolute)) {
+                // Record the deletion with an empty-string sentinel so the
+                // next run recognises "still deleted" as unchanged rather
+                // than re-flagging the file as a fresh change.
+                $out[$file] = '';
+
+                continue;
+            }
+
+            $hash = ContentHash::of($absolute);
+
+            if ($hash !== false) {
+                $out[$file] = $hash;
+            }
+        }
+
+        return $out;
+    }
+
+    /**
+     * @return array<int, string>|null `null` when git is unavailable, or when
+     *                                 the recorded SHA is no longer reachable
+     *                                 from HEAD (rebase / force-push).
+     */
+    public function since(?string $sha): ?array
+    {
+        if (! $this->gitAvailable()) {
+            return null;
+        }
+
+        $files = [];
+
+        if ($sha !== null && $sha !== '') {
+            if (! $this->shaIsReachable($sha)) {
+                return null;
+            }
+
+            $files = array_merge($files, $this->diffSinceSha($sha));
+        }
+
+        $files = array_merge($files, $this->workingTreeChanges());
+
+        // Normalise + dedupe, filtering out paths that can never belong to the
+        // graph: vendor (caught by the fingerprint instead), cache dirs, and
+        // anything starting with a dot we don't care about.
+        $unique = [];
+
+        foreach ($files as $file) {
+            if ($file === '') {
+                continue;
+            }
+            if ($this->shouldIgnore($file)) {
+                continue;
+            }
+            $unique[$file] = true;
+        }
+
+        $candidates = array_keys($unique);
+
+        // Behavioural de-noising: for every file git calls "changed", hash
+        // the current content and the content at `$sha` through
+        // `ContentHash::of()`. A change that only touched comments /
+        // whitespace / blade `{{-- --}}` blocks produces the same hash on
+        // both sides and gets dropped before it can invalidate any test.
+        // Without this, a single-comment edit on a migration re-runs the
+        // entire DB-touching suite.
+        if ($sha !== null && $sha !== '') {
+            return $this->filterBehaviourallyUnchanged($candidates, $sha);
+        }
+
+        return $candidates;
+    }
+
+    /**
+     * @param  array<int, string>  $files
+     * @return array<int, string>
+     */
+    private function filterBehaviourallyUnchanged(array $files, string $sha): array
+    {
+        $remaining = [];
+
+        foreach ($files as $file) {
+            $absolute = $this->projectRoot.DIRECTORY_SEPARATOR.$file;
+
+            if (! is_file($absolute)) {
+                // Deleted on disk — a genuine change, keep it.
+                $remaining[] = $file;
+
+                continue;
+            }
+
+            $currentHash = ContentHash::of($absolute);
+
+            if ($currentHash === false) {
+                $remaining[] = $file;
+
+                continue;
+            }
+
+            $baselineContent = $this->contentAtSha($sha, $file);
+
+            if ($baselineContent === null) {
+                // Couldn't read the baseline (new file, binary, `git show`
+                // failed). Err on the side of re-running.
+                $remaining[] = $file;
+
+                continue;
+            }
+
+            $baselineHash = ContentHash::ofContent($file, $baselineContent);
+
+            if ($currentHash !== $baselineHash) {
+                $remaining[] = $file;
+            }
+        }
+
+        return $remaining;
+    }
+
+    /**
+     * Reads `$path` at `$sha` via `git show`. Returns null when the file
+     * didn't exist at that SHA, when git errors, or when the content
+     * isn't valid UTF-8-safe bytes (rare — binary files that happen to
+     * be tracked).
+     */
+    private function contentAtSha(string $sha, string $path): ?string
+    {
+        $process = new Process(['git', 'show', $sha.':'.$path], $this->projectRoot);
+        $process->setTimeout(5.0);
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            return null;
+        }
+
+        return $process->getOutput();
+    }
+
+    private function shouldIgnore(string $path): bool
+    {
+        static $prefixes = [
+            '.pest/',
+            '.phpunit.cache/',
+            '.phpunit.result.cache',
+            'vendor/',
+            'node_modules/',
+        ];
+
+        foreach ($prefixes as $prefix) {
+            if (str_starts_with($path, (string) $prefix)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public function currentBranch(): ?string
+    {
+        if (! $this->gitAvailable()) {
+            return null;
+        }
+
+        $process = new Process(['git', 'rev-parse', '--abbrev-ref', 'HEAD'], $this->projectRoot);
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            return null;
+        }
+
+        $branch = trim($process->getOutput());
+
+        return $branch === '' || $branch === 'HEAD' ? null : $branch;
+    }
+
+    public function gitAvailable(): bool
+    {
+        $process = new Process(['git', 'rev-parse', '--git-dir'], $this->projectRoot);
+        $process->run();
+
+        return $process->isSuccessful();
+    }
+
+    private function shaIsReachable(string $sha): bool
+    {
+        $process = new Process(
+            ['git', 'merge-base', '--is-ancestor', $sha, 'HEAD'],
+            $this->projectRoot,
+        );
+        $process->run();
+
+        // Exit 0 → ancestor; 1 → not ancestor; anything else → git error
+        // (e.g. unknown commit after a rebase/gc). Treat non-zero as
+        // "unreachable" and force a rebuild.
+        return $process->getExitCode() === 0;
+    }
+
+    /**
+     * @return array<int, string>
+     */
+    private function diffSinceSha(string $sha): array
+    {
+        $process = new Process(
+            ['git', 'diff', '--name-only', $sha.'..HEAD'],
+            $this->projectRoot,
+        );
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            return [];
+        }
+
+        return $this->splitLines($process->getOutput());
+    }
+
+    /**
+     * @return array<int, string>
+     */
+    private function workingTreeChanges(): array
+    {
+        // `-z` produces NUL-terminated records with no path quoting, so paths
+        // that contain spaces, tabs, unicode or other special characters
+        // are passed through verbatim. Without `-z`, git wraps such paths in
+        // quotes with backslash escapes, which would corrupt our lookup keys.
+        //
+        // Record format: `XY <SP> <path> <NUL>` for most entries, and
+        // `R  <new> <NUL> <orig> <NUL>` for renames/copies (two NUL-separated
+        // fields).
+        $process = new Process(
+            ['git', 'status', '--porcelain', '-z', '--untracked-files=all'],
+            $this->projectRoot,
+        );
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            return [];
+        }
+
+        $output = $process->getOutput();
+
+        if ($output === '') {
+            return [];
+        }
+
+        $records = explode("\x00", rtrim($output, "\x00"));
+        $files = [];
+        $count = count($records);
+
+        for ($i = 0; $i < $count; $i++) {
+            $record = $records[$i];
+
+            if (strlen($record) < 4) {
+                continue;
+            }
+
+            $status = substr($record, 0, 2);
+            $path = substr($record, 3);
+
+            // Renames/copies emit two records: the new path first, then the
+            // original. Consume both.
+            if ($status[0] === 'R' || $status[0] === 'C') {
+                $files[] = $path;
+
+                if (isset($records[$i + 1]) && $records[$i + 1] !== '') {
+                    $files[] = $records[$i + 1];
+                    $i++;
+                }
+
+                continue;
+            }
+
+            $files[] = $path;
+        }
+
+        return $files;
+    }
+
+    public function currentSha(): ?string
+    {
+        if (! $this->gitAvailable()) {
+            return null;
+        }
+
+        $process = new Process(['git', 'rev-parse', 'HEAD'], $this->projectRoot);
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            return null;
+        }
+
+        $sha = trim($process->getOutput());
+
+        return $sha === '' ? null : $sha;
+    }
+
+    /**
+     * @return array<int, string>
+     */
+    private function splitLines(string $output): array
+    {
+        $lines = preg_split('/\R+/', trim($output), flags: PREG_SPLIT_NO_EMPTY);
+
+        return $lines === false ? [] : $lines;
+    }
+}

src/Plugins/Tia/Configuration.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use Pest\Support\Container;
+
+/**
+ * User-facing TIA configuration, returned by `pest()->tia()`.
+ *
+ * Usage in `tests/Pest.php`:
+ *
+ *     pest()->tia()->watch([
+ *         'resources/js/**\/*.tsx' => 'tests/Browser',
+ *         'public/build/**\/*'     => 'tests/Browser',
+ *     ]);
+ *
+ * Patterns are merged with the built-in defaults (config, routes, views,
+ * frontend assets, migrations). Duplicate glob keys overwrite the default
+ * mapping so users can redirect a pattern to a narrower directory.
+ *
+ * @internal
+ */
+final class Configuration
+{
+    /**
+     * Adds watch-pattern → test-directory mappings that supplement (or
+     * override) the built-in defaults.
+     *
+     * @param  array<string, string>  $patterns  glob → project-relative test dir
+     * @return $this
+     */
+    public function watch(array $patterns): self
+    {
+        /** @var WatchPatterns $watchPatterns */
+        $watchPatterns = Container::getInstance()->get(WatchPatterns::class);
+        $watchPatterns->add($patterns);
+
+        return $this;
+    }
+}

src/Plugins/Tia/ContentHash.php

@@ -0,0 +1,144 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+/**
+ * Per-file hashing that ignores changes which can't alter behaviour —
+ * comments and whitespace for PHP, `{{-- … --}}` comments and whitespace
+ * runs for Blade templates. Every other file type falls back to a plain
+ * xxh128 of the raw bytes.
+ *
+ * Why it matters: TIA's file diff signals drive which tests re-run. A
+ * one-line comment tweak on a migration is a behavioural no-op, but the
+ * raw-bytes hash still differs, so every test that talks to the DB would
+ * currently re-execute. Normalising to the parsed-token / compiled-shape
+ * keeps the drift signal honest: edits that can't change runtime
+ * behaviour don't invalidate the replay cache.
+ *
+ * Important: this hash is stored in the graph's last-run tree, so any
+ * format change here must be paired with a `Fingerprint::SCHEMA_VERSION`
+ * bump — otherwise stale hashes from older graphs would be compared
+ * against normalised hashes from the new code and everything would
+ * appear changed.
+ *
+ * @internal
+ */
+final class ContentHash
+{
+    /**
+     * xxh128 hex of the file's "behavioural" shape, or `false` when the
+     * file can't be read. Callers should treat `false` the same way they
+     * treated a failed `hash_file()` previously.
+     */
+    public static function of(string $absolute): string|false
+    {
+        $raw = @file_get_contents($absolute);
+
+        if ($raw === false) {
+            return false;
+        }
+
+        return self::ofContent($absolute, $raw);
+    }
+
+    /**
+     * Same as `of()` but accepts the file contents in memory. Used when
+     * we already have the bytes (e.g. from `git show <sha>:<path>`) and
+     * want to avoid a disk round-trip.
+     */
+    public static function ofContent(string $path, string $raw): string
+    {
+        $lower = strtolower($path);
+
+        if (str_ends_with($lower, '.blade.php')) {
+            return self::hashBladeContent($raw);
+        }
+
+        if (str_ends_with($lower, '.php')) {
+            return self::hashPhpContent($raw);
+        }
+
+        foreach (['.vue', '.tsx', '.jsx', '.svelte', '.ts', '.js', '.mjs', '.cjs', '.mts'] as $extension) {
+            if (str_ends_with($lower, $extension)) {
+                return self::hashJsContent($raw);
+            }
+        }
+
+        return hash('xxh128', $raw);
+    }
+
+    /**
+     * Tokenise the content and hash the concatenated values of every
+     * token except whitespace / comment / docblock. `token_get_all()`
+     * is built-in, fast, and enough to collapse any formatting-only
+     * edit. If tokenisation fails (rare syntax error), fall back to
+     * the raw hash so the caller still gets a deterministic signal.
+     */
+    private static function hashPhpContent(string $raw): string
+    {
+        $tokens = @token_get_all($raw);
+
+        if ($tokens === []) {
+            return hash('xxh128', $raw);
+        }
+
+        $normalised = '';
+
+        foreach ($tokens as $token) {
+            if (is_array($token)) {
+                if ($token[0] === T_WHITESPACE) {
+                    continue;
+                }
+                if ($token[0] === T_COMMENT) {
+                    continue;
+                }
+                if ($token[0] === T_DOC_COMMENT) {
+                    continue;
+                }
+                $normalised .= $token[1];
+            } else {
+                $normalised .= $token;
+            }
+        }
+
+        return hash('xxh128', $normalised);
+    }
+
+    /**
+     * Blade templates aren't PHP syntactically, so `token_get_all()`
+     * doesn't help. Strip `{{-- … --}}` comments (the only Blade-native
+     * comment form) and collapse whitespace runs. Output differences
+     * that would survive the Blade compiler (markup reordering, new
+     * directives, changed interpolation) still flip the hash; pure
+     * reformatting does not.
+     */
+    private static function hashBladeContent(string $raw): string
+    {
+        $stripped = preg_replace('/\{\{--.*?--\}\}/s', '', $raw) ?? $raw;
+        $stripped = preg_replace('/\s+/', ' ', $stripped) ?? $stripped;
+
+        return hash('xxh128', trim($stripped));
+    }
+
+    /**
+     * Conservative JS/TS/Vue/Svelte normaliser. Strips `//` line
+     * comments and `/* … *\/` block comments that appear on their own
+     * lines (including leading indentation), then collapses
+     * whitespace. Deliberately leaves trailing comments after code
+     * alone — a string literal like `'http://foo'` would be unsafe to
+     * split on `//` without a full lexer. The direction of error is
+     * over-detection (we may not strip a trailing comment that's
+     * purely cosmetic), never under-detection. Blank lines and
+     * indentation changes are erased regardless.
+     */
+    private static function hashJsContent(string $raw): string
+    {
+        $stripped = preg_replace('/^\s*\/\/[^\n]*$/m', '', $raw) ?? $raw;
+        $stripped = preg_replace('/^\s*\/\*.*?\*\/\s*$/sm', '', $stripped) ?? $stripped;
+        $stripped = preg_replace('/\s+/', ' ', $stripped) ?? $stripped;
+
+        return hash('xxh128', trim($stripped));
+    }
+}

src/Plugins/Tia/Contracts/State.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia\Contracts;
+
+/**
+ * Storage contract for TIA's persistent state (graph, baselines, affected
+ * set, worker partials, coverage snapshots). Modelled as a flat key/value
+ * store of raw byte blobs so implementations can sit on top of whatever
+ * backend fits — a directory, a shared cache, a remote object store — and
+ * TIA's logic stays identical.
+ *
+ * @internal
+ */
+interface State
+{
+    /**
+     * Returns the stored blob for `$key`, or `null` when the key is unset
+     * or cannot be read.
+     */
+    public function read(string $key): ?string;
+
+    /**
+     * Atomically stores `$content` under `$key`. Existing value (if any) is
+     * replaced. Implementations SHOULD guarantee that concurrent readers
+     * never observe partial writes.
+     */
+    public function write(string $key, string $content): bool;
+
+    /**
+     * Removes `$key`. Returns true whether or not the key existed beforehand
+     * — callers should treat a `true` result as "the key is now absent",
+     * not "the key was present and has been removed."
+     */
+    public function delete(string $key): bool;
+
+    public function exists(string $key): bool;
+
+    /**
+     * Returns every key whose name starts with `$prefix`. Used to collect
+     * paratest worker partials (`worker-edges-<token>.json`, etc.) without
+     * exposing backend-specific glob semantics.
+     *
+     * @return list<string>
+     */
+    public function keysWithPrefix(string $prefix): array;
+}

src/Plugins/Tia/CoverageCollector.php

@@ -0,0 +1,152 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use PHPUnit\Runner\CodeCoverage as PhpUnitCodeCoverage;
+use ReflectionClass;
+use Throwable;
+
+/**
+ * Extracts per-test file coverage from PHPUnit's shared `CodeCoverage`
+ * instance. Used when TIA piggybacks on `--coverage` instead of starting
+ * its own driver session — both share the same PCOV / Xdebug state, so
+ * running two recorders in parallel would corrupt each other's data.
+ *
+ * PHPUnit tags every coverage sample with the current test's id
+ * (`$test->valueObjectForEvents()->id()`, e.g. `Foo\BarTest::baz`). The
+ * per-file / per-line coverage map therefore already carries everything
+ * we need to rebuild TIA edges at the end of the run.
+ *
+ * @internal
+ */
+final class CoverageCollector
+{
+    /**
+     * Cached `className → test file` lookups. Class reflection is cheap
+     * individually but the record run can visit tens of thousands of
+     * samples, so the cache matters.
+     *
+     * @var array<string, string|null>
+     */
+    private array $classFileCache = [];
+
+    /**
+     * Rebuilds the same `absolute test file → list<absolute source file>`
+     * shape that `Recorder::perTestFiles()` exposes, so callers can treat
+     * the two collectors interchangeably when feeding the graph.
+     *
+     * @return array<string, array<int, string>>
+     */
+    public function perTestFiles(): array
+    {
+        if (! PhpUnitCodeCoverage::instance()->isActive()) {
+            return [];
+        }
+
+        try {
+            $lineCoverage = PhpUnitCodeCoverage::instance()
+                ->codeCoverage()
+                ->getData()
+                ->lineCoverage();
+        } catch (Throwable) {
+            return [];
+        }
+
+        /** @var array<string, array<string, true>> $edges */
+        $edges = [];
+
+        foreach ($lineCoverage as $sourceFile => $lines) {
+            // Collect the set of tests that hit any line in this file once,
+            // then emit one edge per (testFile, sourceFile) pair. Walking
+            // the lines per test would re-resolve the test file repeatedly.
+            $testIds = [];
+
+            foreach ($lines as $hits) {
+                if ($hits === null) {
+                    continue;
+                }
+
+                foreach ($hits as $id) {
+                    $testIds[$id] = true;
+                }
+            }
+
+            foreach (array_keys($testIds) as $testId) {
+                $testFile = $this->testIdToFile($testId);
+
+                if ($testFile === null) {
+                    continue;
+                }
+
+                $edges[$testFile][$sourceFile] = true;
+            }
+        }
+
+        $out = [];
+
+        foreach ($edges as $testFile => $sources) {
+            $out[$testFile] = array_keys($sources);
+        }
+
+        return $out;
+    }
+
+    public function reset(): void
+    {
+        $this->classFileCache = [];
+    }
+
+    private function testIdToFile(string $testId): ?string
+    {
+        // PHPUnit's test id is `ClassName::methodName` with an optional
+        // `#dataSetName` suffix for data-provider runs. Strip the dataset
+        // part — we only need the class.
+        $hash = strpos($testId, '#');
+        $identifier = $hash === false ? $testId : substr($testId, 0, $hash);
+
+        if (! str_contains($identifier, '::')) {
+            return null;
+        }
+
+        [$className] = explode('::', $identifier, 2);
+
+        if (array_key_exists($className, $this->classFileCache)) {
+            return $this->classFileCache[$className];
+        }
+
+        $file = $this->resolveClassFile($className);
+        $this->classFileCache[$className] = $file;
+
+        return $file;
+    }
+
+    private function resolveClassFile(string $className): ?string
+    {
+        if (! class_exists($className, false)) {
+            return null;
+        }
+
+        $reflection = new ReflectionClass($className);
+
+        // Pest's eval'd test classes expose the original `.php` path on a
+        // static `$__filename`. The eval'd class itself has no file of its
+        // own, so prefer this property when present.
+        if ($reflection->hasProperty('__filename')) {
+            $property = $reflection->getProperty('__filename');
+
+            if ($property->isStatic()) {
+                $value = $property->getValue();
+
+                if (is_string($value)) {
+                    return $value;
+                }
+            }
+        }
+
+        $file = $reflection->getFileName();
+
+        return is_string($file) ? $file : null;
+    }
+}

src/Plugins/Tia/CoverageMerger.php

@@ -0,0 +1,187 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use Pest\Plugins\Tia;
+use Pest\Plugins\Tia\Contracts\State;
+use Pest\Support\Container;
+use SebastianBergmann\CodeCoverage\CodeCoverage;
+use Throwable;
+
+/**
+ * Merges the current run's PHPUnit coverage into a cached full-suite
+ * snapshot so `--tia --coverage` can produce a complete report after
+ * executing only the affected tests.
+ *
+ * Invoked from `Pest\Support\Coverage::report()` right before the coverage
+ * file is consumed. A marker dropped by the `Tia` plugin gates the
+ * behaviour — plain `--coverage` runs (no `--tia`) leave the marker absent
+ * and therefore keep their existing semantics.
+ *
+ * Algorithm
+ * ---------
+ * The PHPUnit coverage PHP file unserialises to a `CodeCoverage` object.
+ * Its `ProcessedCodeCoverageData` stores, per source file, per line, the
+ * list of test IDs that covered that line. We:
+ *
+ *   1. Load the cached snapshot from `State` (serialised bytes).
+ *   2. Strip every test id that re-ran this time from the cached map —
+ *      the tests that ran now are the ones whose attribution is fresh.
+ *   3. Merge the current run into the stripped cached snapshot via
+ *      `CodeCoverage::merge()`.
+ *   4. Write the merged result back to the report path (so Pest's report
+ *      generator sees the full suite) and back into `State` (for the
+ *      next invocation).
+ *
+ * If no cache exists yet (first `--tia --coverage` run on this machine)
+ * we serialise the current object and save it — nothing to merge yet.
+ *
+ * @internal
+ */
+final class CoverageMerger
+{
+    public static function applyIfMarked(string $reportPath): void
+    {
+        $state = self::state();
+
+        if (! $state instanceof State || ! $state->exists(Tia::KEY_COVERAGE_MARKER)) {
+            return;
+        }
+
+        $state->delete(Tia::KEY_COVERAGE_MARKER);
+
+        $cachedBytes = $state->read(Tia::KEY_COVERAGE_CACHE);
+
+        if ($cachedBytes === null) {
+            // First `--tia --coverage` run: nothing cached yet, so the
+            // current file already represents the full suite. Capture it
+            // verbatim (as serialised bytes) for next time.
+            $current = self::requireCoverage($reportPath);
+
+            if ($current instanceof CodeCoverage) {
+                $state->write(Tia::KEY_COVERAGE_CACHE, serialize($current));
+            }
+
+            return;
+        }
+
+        $cached = self::unserializeCoverage($cachedBytes);
+        $current = self::requireCoverage($reportPath);
+
+        if (! $cached instanceof CodeCoverage || ! $current instanceof CodeCoverage) {
+            return;
+        }
+
+        self::stripCurrentTestsFromCached($cached, $current);
+
+        $cached->merge($current);
+
+        $serialised = serialize($cached);
+
+        // Write back to the PHPUnit-style `.cov` path so the report reader
+        // can `require` it, and to the state cache for the next run.
+        @file_put_contents(
+            $reportPath,
+            '<?php return unserialize('.var_export($serialised, true).");\n",
+        );
+        $state->write(Tia::KEY_COVERAGE_CACHE, $serialised);
+    }
+
+    /**
+     * Removes from `$cached`'s per-line test attribution any test id that
+     * appears in `$current`. Those tests just ran, so the fresh slice is
+     * authoritative — keeping stale attribution in the cache would claim
+     * a test still covers a line it no longer touches.
+     */
+    private static function stripCurrentTestsFromCached(CodeCoverage $cached, CodeCoverage $current): void
+    {
+        $currentIds = self::collectTestIds($current);
+
+        if ($currentIds === []) {
+            return;
+        }
+
+        $cachedData = $cached->getData();
+        $lineCoverage = $cachedData->lineCoverage();
+
+        foreach ($lineCoverage as $file => $lines) {
+            foreach ($lines as $line => $ids) {
+                if ($ids === null) {
+                    continue;
+                }
+                if ($ids === []) {
+                    continue;
+                }
+                $filtered = array_values(array_diff($ids, $currentIds));
+
+                if ($filtered !== $ids) {
+                    $lineCoverage[$file][$line] = $filtered;
+                }
+            }
+        }
+
+        $cachedData->setLineCoverage($lineCoverage);
+    }
+
+    /**
+     * @return array<int, string>
+     */
+    private static function collectTestIds(CodeCoverage $coverage): array
+    {
+        $ids = [];
+
+        foreach ($coverage->getData()->lineCoverage() as $lines) {
+            foreach ($lines as $hits) {
+                if ($hits === null) {
+                    continue;
+                }
+
+                foreach ($hits as $id) {
+                    $ids[$id] = true;
+                }
+            }
+        }
+
+        return array_keys($ids);
+    }
+
+    private static function state(): ?State
+    {
+        try {
+            $state = Container::getInstance()->get(State::class);
+        } catch (Throwable) {
+            return null;
+        }
+
+        return $state instanceof State ? $state : null;
+    }
+
+    private static function requireCoverage(string $reportPath): ?CodeCoverage
+    {
+        if (! is_file($reportPath)) {
+            return null;
+        }
+
+        try {
+            /** @var mixed $value */
+            $value = require $reportPath;
+        } catch (Throwable) {
+            return null;
+        }
+
+        return $value instanceof CodeCoverage ? $value : null;
+    }
+
+    private static function unserializeCoverage(string $bytes): ?CodeCoverage
+    {
+        try {
+            $value = @unserialize($bytes);
+        } catch (Throwable) {
+            return null;
+        }
+
+        return $value instanceof CodeCoverage ? $value : null;
+    }
+}

src/Plugins/Tia/FileState.php

@@ -0,0 +1,150 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use Pest\Plugins\Tia\Contracts\State;
+
+/**
+ * Filesystem-backed implementation of the TIA `State` contract. Each key
+ * maps verbatim to a file name under `$rootDir`, so existing `.temp/*.json`
+ * layouts are preserved exactly.
+ *
+ * The root directory is created lazily on first write — callers don't have
+ * to pre-provision it, and reads against a missing directory simply return
+ * `null` rather than throwing.
+ *
+ * @internal
+ */
+final readonly class FileState implements State
+{
+    /**
+     * Configured root. May not exist on disk yet; resolved + created on
+     * the first write. Keeping the raw string lets the instance be built
+     * before Pest's temp dir has been materialised.
+     */
+    private string $rootDir;
+
+    public function __construct(string $rootDir)
+    {
+        $this->rootDir = rtrim($rootDir, DIRECTORY_SEPARATOR);
+    }
+
+    public function read(string $key): ?string
+    {
+        $path = $this->pathFor($key);
+
+        if (! is_file($path)) {
+            return null;
+        }
+
+        $bytes = @file_get_contents($path);
+
+        return $bytes === false ? null : $bytes;
+    }
+
+    public function write(string $key, string $content): bool
+    {
+        if (! $this->ensureRoot()) {
+            return false;
+        }
+
+        $path = $this->pathFor($key);
+        $tmp = $path.'.'.bin2hex(random_bytes(4)).'.tmp';
+
+        if (@file_put_contents($tmp, $content) === false) {
+            return false;
+        }
+
+        // Atomic rename — on POSIX filesystems this is a single-step
+        // replacement, so concurrent readers never see a half-written file.
+        if (! @rename($tmp, $path)) {
+            @unlink($tmp);
+
+            return false;
+        }
+
+        return true;
+    }
+
+    public function delete(string $key): bool
+    {
+        $path = $this->pathFor($key);
+
+        if (! is_file($path)) {
+            return true;
+        }
+
+        return @unlink($path);
+    }
+
+    public function exists(string $key): bool
+    {
+        return is_file($this->pathFor($key));
+    }
+
+    public function keysWithPrefix(string $prefix): array
+    {
+        $root = $this->resolvedRoot();
+
+        if ($root === null) {
+            return [];
+        }
+
+        $pattern = $root.DIRECTORY_SEPARATOR.$prefix.'*';
+        $matches = glob($pattern);
+
+        if ($matches === false) {
+            return [];
+        }
+
+        $keys = [];
+
+        foreach ($matches as $path) {
+            $keys[] = basename($path);
+        }
+
+        return $keys;
+    }
+
+    /**
+     * Absolute path for `$key`. Not part of the interface — used by the
+     * coverage merger and similar callers that need direct filesystem
+     * access (e.g. `require` on a cached PHP file). Consumers that only
+     * deal in bytes should go through `read()` / `write()`.
+     */
+    public function pathFor(string $key): string
+    {
+        return $this->rootDir.DIRECTORY_SEPARATOR.$key;
+    }
+
+    /**
+     * Returns the resolved root if it exists already, otherwise `null`.
+     * Used by read-side helpers so they don't eagerly create the directory
+     * just to find nothing inside.
+     */
+    private function resolvedRoot(): ?string
+    {
+        $resolved = @realpath($this->rootDir);
+
+        return $resolved === false ? null : $resolved;
+    }
+
+    /**
+     * Creates the root dir on demand. Returns false only when creation
+     * fails and the directory still isn't there afterwards.
+     */
+    private function ensureRoot(): bool
+    {
+        if (is_dir($this->rootDir)) {
+            return true;
+        }
+
+        if (@mkdir($this->rootDir, 0755, true)) {
+            return true;
+        }
+
+        return is_dir($this->rootDir);
+    }
+}

src/Plugins/Tia/Fingerprint.php

@@ -0,0 +1,313 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+/**
+ * Captures environmental inputs that, when changed, may make the TIA graph
+ * or its recorded results stale. The fingerprint is split into two buckets:
+ *
+ *   - **structural** — describes what the graph's *edges* were recorded
+ *     against. If any of these drift (`composer.lock`, `tests/Pest.php`,
+ *     Pest's factory codegen, etc.) the edges themselves are potentially
+ *     wrong and the graph must rebuild from scratch.
+ *   - **environmental** — describes the *runtime* the results were captured
+ *     on (PHP minor, extension set, Pest version). Drift here means the
+ *     edges are still trustworthy, but the cached per-test results (pass/
+ *     fail/time) may not reproduce on this machine. Tia's handler drops the
+ *     branch's results + coverage cache and re-runs to freshen them, rather
+ *     than re-recording from scratch.
+ *
+ * Legacy flat-shape graphs (schema ≤ 3) are read as structurally stale and
+ * rebuilt on first load; the schema bump in the structural bucket takes
+ * care of that automatically.
+ *
+ * @internal
+ */
+final readonly class Fingerprint
+{
+    // Bump this whenever the set of inputs or the hash algorithm changes,
+    // so older graphs are invalidated automatically.
+    //
+    //   v5: ChangedFiles now hashes via `ContentHash` (normalises PHP
+    //       tokens + Blade whitespace/comments) instead of raw bytes.
+    //       Old graphs' run-tree hashes are incompatible and must be
+    //       rebuilt.
+    //   v6: Graph gained per-test table edges (`$testTables`) powering
+    //       surgical migration invalidation. Worker partial shape
+    //       changed to `{files, tables}`. Old graphs have no table
+    //       coverage, which would leave every DB test invalidated by
+    //       any migration change — force a rebuild so the new edges
+    //       are populated.
+    //   v7: Graph gained per-test Inertia page-component edges
+    //       (`$testInertiaComponents`) for surgical page-file
+    //       invalidation. Worker partial now includes an `inertia`
+    //       section. Old graphs have no component edges; without a
+    //       rebuild Vue/React page edits would fall through to the
+    //       broad watch pattern even when precise matching could have
+    //       worked.
+    //   v8: Graph gained `$jsFileToComponents` — reverse dependency
+    //       map computed at record time from Vite's module graph (or
+    //       the PHP fallback) so shared components / layouts /
+    //       composables invalidate the specific pages they're used
+    //       by, not every browser test.
+    //   v9: `ContentHash` now normalises JS/TS/Vue/Svelte comments +
+    //       whitespace. Old graphs' run-tree hashes for those files
+    //       were raw-byte; mixing formats would flag every JS file as
+    //       changed on first run.
+    //   v10: `vite.config.*` hashed into the structural bucket. A
+    //        Vite config change reshapes the module dependency graph
+    //        that `JsModuleGraph` records; without a graph rebuild
+    //        the stored `$jsFileToComponents` map silently goes stale.
+    private const int SCHEMA_VERSION = 10;
+
+    /**
+     * @return array{
+     *     structural: array<string, int|string|null>,
+     *     environmental: array<string, string|null>,
+     * }
+     */
+    public static function compute(string $projectRoot): array
+    {
+        return [
+            'structural' => [
+                'schema' => self::SCHEMA_VERSION,
+                'composer_lock' => self::hashIfExists($projectRoot.'/composer.lock'),
+                'phpunit_xml' => self::hashIfExists($projectRoot.'/phpunit.xml'),
+                'phpunit_xml_dist' => self::hashIfExists($projectRoot.'/phpunit.xml.dist'),
+                'pest_php' => self::hashIfExists($projectRoot.'/tests/Pest.php'),
+                // Pest's generated classes bake the code-generation logic
+                // in — if TestCaseFactory changes (new attribute, different
+                // method signature, etc.) every previously-recorded edge is
+                // stale. Hashing the factory sources makes path-repo /
+                // dev-main installs automatically rebuild their graphs when
+                // Pest itself is edited.
+                'pest_factory' => self::hashIfExists(__DIR__.'/../../Factories/TestCaseFactory.php'),
+                'pest_method_factory' => self::hashIfExists(__DIR__.'/../../Factories/TestCaseMethodFactory.php'),
+            ],
+            'environmental' => [
+                // PHP **minor** only (8.4, not 8.4.19) — CI's resolved patch
+                // almost never matches a dev's Herd/Homebrew install, and
+                // the patch rarely changes anything test-visible.
+                'php_minor' => PHP_MAJOR_VERSION.'.'.PHP_MINOR_VERSION,
+                'extensions' => self::extensionsFingerprint($projectRoot),
+                'pest' => self::readPestVersion($projectRoot),
+            ],
+        ];
+    }
+
+    /**
+     * True when the structural buckets match. Drift here means the edges
+     * are potentially wrong; caller should discard the graph and rebuild.
+     *
+     * @param  array<string, mixed>  $a
+     * @param  array<string, mixed>  $b
+     */
+    public static function structuralMatches(array $a, array $b): bool
+    {
+        $aStructural = self::structuralOnly($a);
+        $bStructural = self::structuralOnly($b);
+
+        ksort($aStructural);
+        ksort($bStructural);
+
+        return $aStructural === $bStructural;
+    }
+
+    /**
+     * Returns a list of field names that drifted between the stored and
+     * current environmental fingerprints. Empty list = no drift. Caller
+     * uses this to print a human-readable warning and to decide whether
+     * per-test results should be dropped (any drift → yes).
+     *
+     * @param  array<string, mixed>  $stored
+     * @param  array<string, mixed>  $current
+     * @return list<string>
+     */
+    public static function environmentalDrift(array $stored, array $current): array
+    {
+        $a = self::environmentalOnly($stored);
+        $b = self::environmentalOnly($current);
+
+        $drifts = [];
+
+        foreach ($a as $key => $value) {
+            if (($b[$key] ?? null) !== $value) {
+                $drifts[] = $key;
+            }
+        }
+
+        foreach ($b as $key => $value) {
+            if (! array_key_exists($key, $a) && $value !== null) {
+                $drifts[] = $key;
+            }
+        }
+
+        return array_values(array_unique($drifts));
+    }
+
+    /**
+     * @param  array<string, mixed>  $fingerprint
+     * @return array<string, mixed>
+     */
+    private static function structuralOnly(array $fingerprint): array
+    {
+        return self::bucket($fingerprint, 'structural');
+    }
+
+    /**
+     * @param  array<string, mixed>  $fingerprint
+     * @return array<string, mixed>
+     */
+    private static function environmentalOnly(array $fingerprint): array
+    {
+        return self::bucket($fingerprint, 'environmental');
+    }
+
+    /**
+     * Returns `$fingerprint[$key]` as an `array<string, mixed>` if it exists
+     * and is an array, otherwise empty. Legacy flat-shape fingerprints
+     * (schema ≤ 3) return empty here, which makes `structuralMatches` fail
+     * and the caller rebuild — the clean migration path.
+     *
+     * @param  array<string, mixed>  $fingerprint
+     * @return array<string, mixed>
+     */
+    private static function bucket(array $fingerprint, string $key): array
+    {
+        $raw = $fingerprint[$key] ?? null;
+
+        if (! is_array($raw)) {
+            return [];
+        }
+
+        $normalised = [];
+
+        foreach ($raw as $k => $v) {
+            if (is_string($k)) {
+                $normalised[$k] = $v;
+            }
+        }
+
+        return $normalised;
+    }
+
+    private static function hashIfExists(string $path): ?string
+    {
+        if (! is_file($path)) {
+            return null;
+        }
+
+        $hash = @hash_file('xxh128', $path);
+
+        return $hash === false ? null : $hash;
+    }
+
+    /**
+     * Deterministic hash of the extensions the project actually depends on —
+     * the `ext-*` entries in composer.json's `require` / `require-dev`. An
+     * incidental extension loaded on the developer's machine (or on CI) but
+     * not declared as a dependency can't affect correctness of the test
+     * suite, so we ignore it here to keep the drift signal quiet.
+     *
+     * Declared extensions that aren't currently loaded record as `missing`,
+     * which is itself a drift signal worth surfacing.
+     */
+    private static function extensionsFingerprint(string $projectRoot): string
+    {
+        $extensions = self::declaredExtensions($projectRoot);
+
+        if ($extensions === []) {
+            return hash('xxh128', '');
+        }
+
+        sort($extensions);
+
+        $parts = [];
+
+        foreach ($extensions as $name) {
+            $version = phpversion($name);
+            $parts[] = $name.'@'.($version === false ? 'missing' : $version);
+        }
+
+        return hash('xxh128', implode("\n", $parts));
+    }
+
+    /**
+     * Extension names (without the `ext-` prefix) that appear as keys under
+     * `require` or `require-dev` in the project's composer.json. Returns
+     * an empty list when composer.json is missing / unreadable / malformed,
+     * so the environmental fingerprint stays stable in those cases rather
+     * than flapping.
+     *
+     * @return list<string>
+     */
+    private static function declaredExtensions(string $projectRoot): array
+    {
+        $path = $projectRoot.'/composer.json';
+
+        if (! is_file($path)) {
+            return [];
+        }
+
+        $raw = @file_get_contents($path);
+
+        if ($raw === false) {
+            return [];
+        }
+
+        $data = json_decode($raw, true);
+
+        if (! is_array($data)) {
+            return [];
+        }
+
+        $extensions = [];
+
+        foreach (['require', 'require-dev'] as $section) {
+            $packages = $data[$section] ?? null;
+
+            if (! is_array($packages)) {
+                continue;
+            }
+
+            foreach (array_keys($packages) as $package) {
+                if (is_string($package) && str_starts_with($package, 'ext-')) {
+                    $extensions[] = substr($package, 4);
+                }
+            }
+        }
+
+        return array_values(array_unique($extensions));
+    }
+
+    private static function readPestVersion(string $projectRoot): string
+    {
+        $installed = $projectRoot.'/vendor/composer/installed.json';
+
+        if (! is_file($installed)) {
+            return 'unknown';
+        }
+
+        $raw = @file_get_contents($installed);
+
+        if ($raw === false) {
+            return 'unknown';
+        }
+
+        $data = json_decode($raw, true);
+
+        if (! is_array($data) || ! isset($data['packages']) || ! is_array($data['packages'])) {
+            return 'unknown';
+        }
+
+        foreach ($data['packages'] as $package) {
+            if (is_array($package) && ($package['name'] ?? null) === 'pestphp/pest') {
+                return (string) ($package['version'] ?? 'unknown');
+            }
+        }
+
+        return 'unknown';
+    }
+}

src/Plugins/Tia/InertiaEdges.php

@@ -0,0 +1,170 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+/**
+ * Inertia-aware collaborator: during record mode, attributes every
+ * Inertia component the test server-side renders to the currently-
+ * running test file.
+ *
+ * Why this exists: a change to `resources/js/Pages/Users/Show.vue`
+ * should only invalidate tests that actually rendered `Users/Show`.
+ * The Laravel `WatchDefaults\Inertia` glob is a broad fallback — fine
+ * for brand-new pages, but noisy once the graph has real data. With
+ * this armed, each test's recorded edge set grows to include the
+ * component names it returned through `Inertia::render()`, and
+ * subsequent replay intersects page-file changes against that set.
+ *
+ * Mechanism: listen for `Illuminate\Foundation\Http\Events\RequestHandled`
+ * on Laravel's event dispatcher. Inertia responses are identifiable by
+ * either an `X-Inertia` header (XHR / JSON shape) or a `data-page`
+ * attribute on the root `<div id="app">` (full HTML shape). Both carry
+ * the component name in a structured payload we can parse cheaply.
+ *
+ * Same dep-free handshake as `BladeEdges` / `TableTracker`: string
+ * class lookup + method-capability probes so Pest's `require` stays
+ * Laravel-free.
+ *
+ * @internal
+ */
+final class InertiaEdges
+{
+    private const string CONTAINER_CLASS = '\\Illuminate\\Container\\Container';
+
+    private const string REQUEST_HANDLED_EVENT = '\\Illuminate\\Foundation\\Http\\Events\\RequestHandled';
+
+    /**
+     * App-scoped marker that makes `arm()` idempotent across per-test
+     * `setUp()` calls. Laravel reuses the same app across tests in
+     * most configurations — without this guard we'd stack one
+     * listener per test.
+     */
+    private const string MARKER = 'pest.tia.inertia-edges-armed';
+
+    public static function arm(Recorder $recorder): void
+    {
+        if (! $recorder->isActive()) {
+            return;
+        }
+
+        $containerClass = self::CONTAINER_CLASS;
+
+        if (! class_exists($containerClass)) {
+            return;
+        }
+
+        /** @var object $app */
+        $app = $containerClass::getInstance();
+
+        if (! method_exists($app, 'bound') || ! method_exists($app, 'make') || ! method_exists($app, 'instance')) {
+            return;
+        }
+
+        if ($app->bound(self::MARKER)) {
+            return;
+        }
+
+        if (! $app->bound('events')) {
+            return;
+        }
+
+        $app->instance(self::MARKER, true);
+
+        /** @var object $events */
+        $events = $app->make('events');
+
+        if (! method_exists($events, 'listen')) {
+            return;
+        }
+
+        $events->listen(self::REQUEST_HANDLED_EVENT, static function (object $event) use ($recorder): void {
+            if (! property_exists($event, 'response')) {
+                return;
+            }
+
+            /** @var mixed $response */
+            $response = $event->response;
+
+            if (! is_object($response)) {
+                return;
+            }
+
+            $component = self::extractComponent($response);
+
+            if ($component !== null) {
+                $recorder->linkInertiaComponent($component);
+            }
+        });
+    }
+
+    /**
+     * Pulls the Inertia component name out of a Laravel response,
+     * handling both XHR (`X-Inertia` + JSON body) and full HTML
+     * (`<div id="app" data-page="…">`) shapes. Returns null for any
+     * non-Inertia response so the caller can ignore it cheaply.
+     */
+    private static function extractComponent(object $response): ?string
+    {
+        // XHR path: Inertia sets an `X-Inertia: true` header and the
+        // body is JSON with a `component` key.
+        if (property_exists($response, 'headers') && is_object($response->headers)) {
+            $headers = $response->headers;
+
+            if (method_exists($headers, 'has') && $headers->has('X-Inertia')) {
+                $content = self::readContent($response);
+
+                if ($content !== null) {
+                    /** @var mixed $decoded */
+                    $decoded = json_decode($content, true);
+
+                    if (is_array($decoded)
+                        && isset($decoded['component'])
+                        && is_string($decoded['component'])
+                        && $decoded['component'] !== '') {
+                        return $decoded['component'];
+                    }
+                }
+            }
+        }
+
+        // Initial-load HTML path: Inertia embeds the page payload in a
+        // `data-page` attribute on the root `<div id="app">`. We only
+        // pay the regex cost when the body actually contains the
+        // attribute, so non-Inertia HTML responses are effectively a
+        // no-op.
+        $content = self::readContent($response);
+
+        if ($content === null || ! str_contains($content, 'data-page=')) {
+            return null;
+        }
+
+        if (preg_match('/\sdata-page="([^"]+)"/', $content, $match) !== 1) {
+            return null;
+        }
+
+        $decoded = json_decode(html_entity_decode($match[1]), true);
+
+        if (is_array($decoded)
+            && isset($decoded['component'])
+            && is_string($decoded['component'])
+            && $decoded['component'] !== '') {
+            return $decoded['component'];
+        }
+
+        return null;
+    }
+
+    private static function readContent(object $response): ?string
+    {
+        if (! method_exists($response, 'getContent')) {
+            return null;
+        }
+
+        /** @var mixed $content */
+        $content = $response->getContent();
+
+        return is_string($content) ? $content : null;
+    }
+}

src/Plugins/Tia/JsImportParser.php

@@ -0,0 +1,270 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+/**
+ * Fallback parser for ES module imports under `resources/js/`.
+ *
+ * Used only when the Node helper (`bin/pest-tia-vite-deps.mjs`) is
+ * unavailable — typically when Node isn't on `PATH` or the user's
+ * `vite.config.*` can't be loaded. Pure PHP, so it degrades
+ * gracefully on locked-down environments but cannot match the
+ * full-fidelity Vite resolver.
+ *
+ * Known limits (intentional — preserving correctness over precision):
+ *   - Only `@/` and `~/` aliases recognised (both resolve to
+ *     `resources/js/`, the community default). Custom aliases from
+ *     `vite.config.ts` are ignored; anything we can't resolve is
+ *     simply skipped and falls through to the watch-pattern safety
+ *     net.
+ *   - Dynamic imports with variable expressions
+ *     (`import(`./${name}`.vue)`) can't be resolved; the literal
+ *     prefix is ignored and the caller over-runs. Safe.
+ *   - Vue SFC `<script>` blocks parsed whole; imports inside
+ *     `<template>` blocks (rare but legal) are not scanned.
+ *
+ * Output shape mirrors the Node helper: project-relative source path
+ * → sorted list of component names of pages that depend on it.
+ *
+ * @internal
+ */
+final class JsImportParser
+{
+    private const array PAGE_EXTENSIONS = ['vue', 'tsx', 'jsx', 'svelte'];
+
+    private const array RESOLVABLE_EXTENSIONS = ['vue', 'tsx', 'jsx', 'svelte', 'ts', 'js', 'mjs', 'mts'];
+
+    private const string PAGES_DIR = 'resources/js/Pages';
+
+    private const string JS_DIR = 'resources/js';
+
+    /**
+     * Walks `resources/js/Pages` and, for each page, collects its
+     * transitive file imports. Returns the inverted graph so callers
+     * can look up "what pages depend on this shared file".
+     *
+     * @return array<string, list<string>>
+     */
+    public static function parse(string $projectRoot): array
+    {
+        $jsRoot = $projectRoot.DIRECTORY_SEPARATOR.self::JS_DIR;
+        $pagesRoot = $projectRoot.DIRECTORY_SEPARATOR.self::PAGES_DIR;
+
+        if (! is_dir($pagesRoot)) {
+            return [];
+        }
+
+        $reverse = [];
+
+        foreach (self::collectPages($pagesRoot) as $pageAbs) {
+            $component = self::componentName($pagesRoot, $pageAbs);
+
+            if ($component === null) {
+                continue;
+            }
+
+            $visited = [];
+            self::collectTransitive($pageAbs, $projectRoot, $jsRoot, $visited);
+
+            foreach (array_keys($visited) as $depAbs) {
+                if ($depAbs === $pageAbs) {
+                    continue;
+                }
+
+                $rel = str_replace(DIRECTORY_SEPARATOR, '/', substr($depAbs, strlen($projectRoot) + 1));
+                $reverse[$rel][$component] = true;
+            }
+        }
+
+        $out = [];
+        foreach ($reverse as $path => $components) {
+            $names = array_keys($components);
+            sort($names);
+            $out[$path] = $names;
+        }
+
+        ksort($out);
+
+        return $out;
+    }
+
+    /**
+     * @return list<string>
+     */
+    private static function collectPages(string $pagesRoot): array
+    {
+        $out = [];
+        $iterator = new \RecursiveIteratorIterator(
+            new \RecursiveDirectoryIterator($pagesRoot, \FilesystemIterator::SKIP_DOTS),
+        );
+
+        foreach ($iterator as $fileInfo) {
+            if (! $fileInfo->isFile()) {
+                continue;
+            }
+
+            $ext = strtolower((string) $fileInfo->getExtension());
+            if (in_array($ext, self::PAGE_EXTENSIONS, true)) {
+                $out[] = $fileInfo->getPathname();
+            }
+        }
+
+        return $out;
+    }
+
+    private static function componentName(string $pagesRoot, string $pageAbs): ?string
+    {
+        $rel = str_replace(DIRECTORY_SEPARATOR, '/', substr($pageAbs, strlen($pagesRoot) + 1));
+        $dot = strrpos($rel, '.');
+
+        if ($dot === false) {
+            return null;
+        }
+
+        $name = substr($rel, 0, $dot);
+
+        return $name === '' ? null : $name;
+    }
+
+    /**
+     * @param  array<string, true>  $visited
+     */
+    private static function collectTransitive(string $fileAbs, string $projectRoot, string $jsRoot, array &$visited): void
+    {
+        if (isset($visited[$fileAbs])) {
+            return;
+        }
+        $visited[$fileAbs] = true;
+
+        $source = self::loadSource($fileAbs);
+        if ($source === null) {
+            return;
+        }
+
+        foreach (self::extractImports($source) as $spec) {
+            $resolved = self::resolveImport($spec, $fileAbs, $jsRoot);
+            if ($resolved === null) {
+                continue;
+            }
+            if (! is_file($resolved)) {
+                continue;
+            }
+
+            self::collectTransitive($resolved, $projectRoot, $jsRoot, $visited);
+        }
+    }
+
+    /**
+     * Loads the importable region of a file. For Vue SFCs, only the
+     * `<script>` block is relevant for imports; ignoring the rest
+     * avoids false-positive matches inside `<template>` attributes.
+     */
+    private static function loadSource(string $fileAbs): ?string
+    {
+        $content = @file_get_contents($fileAbs);
+        if ($content === false) {
+            return null;
+        }
+
+        if (str_ends_with(strtolower($fileAbs), '.vue')) {
+            $scripts = [];
+            if (preg_match_all('/<script[^>]*>(.*?)<\/script>/si', $content, $m) !== false) {
+                foreach ($m[1] as $block) {
+                    $scripts[] = $block;
+                }
+            }
+
+            return implode("\n", $scripts);
+        }
+
+        return $content;
+    }
+
+    /**
+     * Picks out every `import … from '…'` / `import '…'` / `import('…')`
+     * target. We strip line comments first so a commented-out import
+     * doesn't bloat the dep set.
+     *
+     * @return list<string>
+     */
+    private static function extractImports(string $source): array
+    {
+        $stripped = preg_replace('#//[^\n]*#', '', $source) ?? $source;
+        $stripped = preg_replace('#/\*.*?\*/#s', '', $stripped) ?? $stripped;
+
+        $specs = [];
+
+        if (preg_match_all('/\bimport\s+(?:[^\'"()]*?\s+from\s+)?[\'"]([^\'"]+)[\'"]/', $stripped, $matches) !== false) {
+            foreach ($matches[1] as $spec) {
+                $specs[] = $spec;
+            }
+        }
+
+        if (preg_match_all('/\bimport\(\s*[\'"]([^\'"]+)[\'"]\s*\)/', $stripped, $matches) !== false) {
+            foreach ($matches[1] as $spec) {
+                $specs[] = $spec;
+            }
+        }
+
+        return $specs;
+    }
+
+    private static function resolveImport(string $spec, string $importerAbs, string $jsRoot): ?string
+    {
+        if ($spec === '' || $spec[0] === '.' || $spec[0] === '/') {
+            return self::resolveRelative($spec, $importerAbs);
+        }
+
+        if (str_starts_with($spec, '@/') || str_starts_with($spec, '~/')) {
+            $tail = substr($spec, 2);
+
+            return self::withExtension($jsRoot.DIRECTORY_SEPARATOR.str_replace('/', DIRECTORY_SEPARATOR, $tail));
+        }
+
+        // Anything else is either a node_modules package or an
+        // unrecognised alias — skip. The watch-pattern fallback
+        // handles the safety-net case for non-matched paths.
+        return null;
+    }
+
+    private static function resolveRelative(string $spec, string $importerAbs): ?string
+    {
+        if ($spec === '' || $spec[0] === '/') {
+            return null;
+        }
+
+        $base = dirname($importerAbs);
+        $path = $base.DIRECTORY_SEPARATOR.str_replace('/', DIRECTORY_SEPARATOR, $spec);
+
+        return self::withExtension($path);
+    }
+
+    /**
+     * Imports may omit the extension or point at a directory (index.vue,
+     * index.ts). Probe the common targets in order.
+     */
+    private static function withExtension(string $path): ?string
+    {
+        if (is_file($path)) {
+            return realpath($path) ?: $path;
+        }
+
+        foreach (self::RESOLVABLE_EXTENSIONS as $ext) {
+            $candidate = $path.'.'.$ext;
+            if (is_file($candidate)) {
+                return realpath($candidate) ?: $candidate;
+            }
+        }
+
+        foreach (self::RESOLVABLE_EXTENSIONS as $ext) {
+            $candidate = $path.DIRECTORY_SEPARATOR.'index.'.$ext;
+            if (is_file($candidate)) {
+                return realpath($candidate) ?: $candidate;
+            }
+        }
+
+        return null;
+    }
+}

src/Plugins/Tia/JsModuleGraph.php

@@ -0,0 +1,142 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use Symfony\Component\Process\ExecutableFinder;
+use Symfony\Component\Process\Process;
+
+/**
+ * Builds a reverse dependency map for the project's JS sources under
+ * `resources/js/**` — for every source file, the list of Inertia page
+ * components that transitively import it.
+ *
+ * Tries two resolvers in order:
+ *
+ *   1. **Node helper** (`bin/pest-tia-vite-deps.mjs`). Spins up a
+ *      headless Vite server in middleware mode, walks Vite's own
+ *      module graph for each page entry, and outputs JSON. Uses the
+ *      project's real `vite.config.*`, so aliases, plugins, and SFC
+ *      transformers produce the same graph Vite itself would use.
+ *
+ *   2. **PHP fallback** (`JsImportParser`). Regex-scans ES imports
+ *      and resolves `@/` / `~/` aliases manually. Strictly less
+ *      precise — anything it can't resolve is skipped, leaving the
+ *      caller to fall back to the broad watch pattern. Only kicks in
+ *      when the Node helper is unusable (no Node on PATH, no Vite
+ *      installed, vite.config fails to load).
+ *
+ * Callers invoke this at record time; results are persisted into the
+ * graph so replay never re-runs the resolver. On stale-map detection
+ * the callers decide whether to rebuild.
+ *
+ * @internal
+ */
+final class JsModuleGraph
+{
+    private const int NODE_TIMEOUT_SECONDS = 25;
+
+    /**
+     * @return array<string, list<string>> project-relative source path → sorted list of page component names
+     */
+    public static function build(string $projectRoot): array
+    {
+        $viaNode = self::tryNodeHelper($projectRoot);
+
+        if ($viaNode !== null) {
+            return $viaNode;
+        }
+
+        return JsImportParser::parse($projectRoot);
+    }
+
+    /**
+     * True when the project looks like a Vite + Node project we can
+     * ask for a module graph. Gate for callers that want to skip the
+     * resolver entirely on non-Vite apps.
+     */
+    public static function isApplicable(string $projectRoot): bool
+    {
+        return self::hasViteConfig($projectRoot) && is_dir($projectRoot.DIRECTORY_SEPARATOR.'resources'.DIRECTORY_SEPARATOR.'js'.DIRECTORY_SEPARATOR.'Pages');
+    }
+
+    /**
+     * @return array<string, list<string>>|null
+     */
+    private static function tryNodeHelper(string $projectRoot): ?array
+    {
+        if (! self::hasViteConfig($projectRoot)) {
+            return null;
+        }
+
+        if (! is_dir($projectRoot.DIRECTORY_SEPARATOR.'node_modules'.DIRECTORY_SEPARATOR.'vite')) {
+            return null;
+        }
+
+        $nodeBinary = (new ExecutableFinder)->find('node');
+
+        if ($nodeBinary === null) {
+            return null;
+        }
+
+        $helperPath = dirname(__DIR__, 3).DIRECTORY_SEPARATOR.'bin'.DIRECTORY_SEPARATOR.'pest-tia-vite-deps.mjs';
+
+        if (! is_file($helperPath)) {
+            return null;
+        }
+
+        $process = new Process([$nodeBinary, $helperPath, $projectRoot], $projectRoot);
+        $process->setTimeout(self::NODE_TIMEOUT_SECONDS);
+        $process->run();
+
+        if (! $process->isSuccessful()) {
+            return null;
+        }
+
+        /** @var mixed $decoded */
+        $decoded = json_decode($process->getOutput(), true);
+
+        if (! is_array($decoded)) {
+            return null;
+        }
+
+        $out = [];
+
+        foreach ($decoded as $path => $components) {
+            if (! is_string($path)) {
+                continue;
+            }
+            if (! is_array($components)) {
+                continue;
+            }
+            $names = [];
+
+            foreach ($components as $component) {
+                if (is_string($component) && $component !== '') {
+                    $names[] = $component;
+                }
+            }
+
+            if ($names !== []) {
+                sort($names);
+                $out[$path] = $names;
+            }
+        }
+
+        ksort($out);
+
+        return $out;
+    }
+
+    private static function hasViteConfig(string $projectRoot): bool
+    {
+        foreach (['vite.config.ts', 'vite.config.js', 'vite.config.mjs', 'vite.config.cjs', 'vite.config.mts'] as $name) {
+            if (is_file($projectRoot.DIRECTORY_SEPARATOR.$name)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}

src/Plugins/Tia/Recorder.php

@@ -0,0 +1,361 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+use ReflectionClass;
+
+/**
+ * Captures per-test file coverage using the PCOV driver.
+ *
+ * Acts as a singleton because PCOV has a single global collection state and
+ * the recorder is wired into PHPUnit through two distinct subscribers
+ * (`Prepared` / `Finished`) that must share context.
+ *
+ * @internal
+ */
+final class Recorder
+{
+    /**
+     * Test file currently being recorded, or `null` when idle.
+     */
+    private ?string $currentTestFile = null;
+
+    /**
+     * Aggregated map: absolute test file → set<absolute source file>.
+     *
+     * @var array<string, array<string, true>>
+     */
+    private array $perTestFiles = [];
+
+    /**
+     * Aggregated map: absolute test file → set<lowercase table name>.
+     * Populated by `TableTracker` from `DB::listen` callbacks; consumed
+     * at record finalize to populate the graph's `$testTables` edges
+     * that drive migration-change impact analysis.
+     *
+     * @var array<string, array<string, true>>
+     */
+    private array $perTestTables = [];
+
+    /**
+     * Aggregated map: absolute test file → set<Inertia component name>.
+     * Populated by `InertiaEdges` from Inertia responses observed at
+     * request-handled time; consumed at record finalize to populate
+     * the graph's per-test component edges that drive Vue / React
+     * page-file impact analysis.
+     *
+     * @var array<string, array<string, true>>
+     */
+    private array $perTestInertiaComponents = [];
+
+    /**
+     * Cached class → test file resolution.
+     *
+     * @var array<string, string|null>
+     */
+    private array $classFileCache = [];
+
+    private bool $active = false;
+
+    private bool $driverChecked = false;
+
+    private bool $driverAvailable = false;
+
+    private string $driver = 'none';
+
+    public function activate(): void
+    {
+        $this->active = true;
+    }
+
+    public function isActive(): bool
+    {
+        return $this->active;
+    }
+
+    public function driverAvailable(): bool
+    {
+        if (! $this->driverChecked) {
+            if (function_exists('pcov\\start')) {
+                $this->driver = 'pcov';
+                $this->driverAvailable = true;
+            } elseif (function_exists('xdebug_start_code_coverage')) {
+                // Xdebug is loaded. Probe whether coverage mode is active by
+                // attempting a start — it emits E_WARNING when the mode is off.
+                // We capture the warning via a temporary error handler.
+                $probeOk = true;
+                set_error_handler(static function () use (&$probeOk): bool {
+                    $probeOk = false;
+
+                    return true;
+                });
+                \xdebug_start_code_coverage();
+                restore_error_handler();
+
+                if ($probeOk) {
+                    \xdebug_stop_code_coverage(false);
+                    $this->driver = 'xdebug';
+                    $this->driverAvailable = true;
+                }
+            }
+
+            $this->driverChecked = true;
+        }
+
+        return $this->driverAvailable;
+    }
+
+    public function driver(): string
+    {
+        $this->driverAvailable();
+
+        return $this->driver;
+    }
+
+    public function beginTest(string $className, string $methodName, string $fallbackFile): void
+    {
+        if (! $this->active || ! $this->driverAvailable()) {
+            return;
+        }
+
+        $file = $this->resolveTestFile($className, $fallbackFile);
+
+        if ($file === null) {
+            return;
+        }
+
+        $this->currentTestFile = $file;
+
+        if ($this->driver === 'pcov') {
+            \pcov\clear();
+            \pcov\start();
+
+            return;
+        }
+
+        // Xdebug
+        \xdebug_start_code_coverage();
+    }
+
+    public function endTest(): void
+    {
+        if (! $this->active || ! $this->driverAvailable() || $this->currentTestFile === null) {
+            return;
+        }
+
+        if ($this->driver === 'pcov') {
+            \pcov\stop();
+            /** @var array<string, mixed> $data */
+            $data = \pcov\collect(\pcov\inclusive);
+        } else {
+            /** @var array<string, mixed> $data */
+            $data = \xdebug_get_code_coverage();
+            // `true` resets Xdebug's internal buffer so the next `start()`
+            // does not accumulate earlier tests' coverage into the current
+            // one — otherwise the graph becomes progressively polluted.
+            \xdebug_stop_code_coverage(true);
+        }
+
+        foreach (array_keys($data) as $sourceFile) {
+            $this->perTestFiles[$this->currentTestFile][$sourceFile] = true;
+        }
+
+        $this->currentTestFile = null;
+    }
+
+    /**
+     * Records an extra source-file dependency for the currently-running
+     * test. Used by collaborators that capture edges the coverage driver
+     * cannot see — Blade templates rendered through Laravel's view
+     * factory are the motivating case (their `.blade.php` source never
+     * executes directly; a cached compiled PHP file does). No-op when
+     * the recorder is inactive or no test is in flight, so callers can
+     * fire it unconditionally from app-level hooks.
+     */
+    public function linkSource(string $sourceFile): void
+    {
+        if (! $this->active) {
+            return;
+        }
+
+        if ($this->currentTestFile === null) {
+            return;
+        }
+
+        if ($sourceFile === '') {
+            return;
+        }
+
+        $this->perTestFiles[$this->currentTestFile][$sourceFile] = true;
+    }
+
+    /**
+     * Records that the currently-running test queried `$table`. Called
+     * by `TableTracker` for every DML statement Laravel's `DB::listen`
+     * reports; the table name has already been extracted by
+     * `TableExtractor::fromSql()` so we just store it. No-op outside
+     * a test window, so the callback is safe to leave armed across
+     * setUp / tearDown boundaries.
+     */
+    public function linkTable(string $table): void
+    {
+        if (! $this->active) {
+            return;
+        }
+
+        if ($this->currentTestFile === null) {
+            return;
+        }
+
+        if ($table === '') {
+            return;
+        }
+
+        $this->perTestTables[$this->currentTestFile][strtolower($table)] = true;
+    }
+
+    /**
+     * Records that the currently-running test server-side-rendered the
+     * named Inertia component. The name is whatever
+     * `Inertia::render($component, …)` was called with — typically a
+     * slash-separated path like `Users/Show` that maps to
+     * `resources/js/Pages/Users/Show.vue`. No-op outside a test window
+     * so the underlying listener can stay armed without leaking
+     * state between tests.
+     */
+    public function linkInertiaComponent(string $component): void
+    {
+        if (! $this->active) {
+            return;
+        }
+
+        if ($this->currentTestFile === null) {
+            return;
+        }
+
+        if ($component === '') {
+            return;
+        }
+
+        $this->perTestInertiaComponents[$this->currentTestFile][$component] = true;
+    }
+
+    /**
+     * @return array<string, array<int, string>> absolute test file → list of absolute source files.
+     */
+    public function perTestFiles(): array
+    {
+        $out = [];
+
+        foreach ($this->perTestFiles as $testFile => $sources) {
+            $out[$testFile] = array_keys($sources);
+        }
+
+        return $out;
+    }
+
+    /**
+     * @return array<string, array<int, string>> absolute test file → sorted list of table names.
+     */
+    public function perTestTables(): array
+    {
+        $out = [];
+
+        foreach ($this->perTestTables as $testFile => $tables) {
+            $names = array_keys($tables);
+            sort($names);
+            $out[$testFile] = $names;
+        }
+
+        return $out;
+    }
+
+    /**
+     * @return array<string, array<int, string>> absolute test file → sorted list of Inertia component names.
+     */
+    public function perTestInertiaComponents(): array
+    {
+        $out = [];
+
+        foreach ($this->perTestInertiaComponents as $testFile => $components) {
+            $names = array_keys($components);
+            sort($names);
+            $out[$testFile] = $names;
+        }
+
+        return $out;
+    }
+
+    private function resolveTestFile(string $className, string $fallbackFile): ?string
+    {
+        if (array_key_exists($className, $this->classFileCache)) {
+            $file = $this->classFileCache[$className];
+        } else {
+            $file = $this->readPestFilename($className);
+            $this->classFileCache[$className] = $file;
+        }
+
+        if ($file !== null) {
+            return $file;
+        }
+
+        if ($fallbackFile !== '' && $fallbackFile !== 'unknown' && ! str_contains($fallbackFile, "eval()'d")) {
+            return $fallbackFile;
+        }
+
+        return null;
+    }
+
+    /**
+     * Resolves the file that *defines* the test class.
+     *
+     * Order of preference:
+     *   1. Pest's generated `$__filename` static — the original `*.php` file
+     *      containing the `test()` calls (the eval'd class itself has no file).
+     *   2. `ReflectionClass::getFileName()` — the concrete class's file. This
+     *      is intentionally more specific than `ReflectionMethod::getFileName()`
+     *      (which would return the *trait* file for methods brought in via
+     *      `uses SharedTestBehavior`).
+     */
+    private function readPestFilename(string $className): ?string
+    {
+        if (! class_exists($className, false)) {
+            return null;
+        }
+
+        $reflection = new ReflectionClass($className);
+
+        if ($reflection->hasProperty('__filename')) {
+            $property = $reflection->getProperty('__filename');
+
+            if ($property->isStatic()) {
+                $value = $property->getValue();
+
+                if (is_string($value)) {
+                    return $value;
+                }
+            }
+        }
+
+        $file = $reflection->getFileName();
+
+        return is_string($file) ? $file : null;
+    }
+
+    /**
+     * Clears all captured state. Useful for long-running hosts (daemons,
+     * PHP-FPM, watchers) that invoke Pest multiple times in a single process
+     * — without this, coverage from run N would bleed into run N+1.
+     */
+    public function reset(): void
+    {
+        $this->currentTestFile = null;
+        $this->perTestFiles = [];
+        $this->perTestTables = [];
+        $this->perTestInertiaComponents = [];
+        $this->classFileCache = [];
+        $this->active = false;
+    }
+}

src/Plugins/Tia/ResultCollector.php

@@ -0,0 +1,155 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+/**
+ * Collects per-test status + message during the run so the graph can persist
+ * them for faithful replay. PHPUnit's own result cache discards messages
+ * during serialisation — this collector retains them.
+ *
+ * @internal
+ */
+final class ResultCollector
+{
+    /**
+     * @var array<string, array{status: int, message: string, time: float, assertions: int}>
+     */
+    private array $results = [];
+
+    private ?string $currentTestId = null;
+
+    private ?float $startTime = null;
+
+    public function testPrepared(string $testId): void
+    {
+        $this->currentTestId = $testId;
+        $this->startTime = microtime(true);
+    }
+
+    public function testPassed(): void
+    {
+        if ($this->currentTestId === null) {
+            return;
+        }
+
+        $this->record(0, '');
+    }
+
+    public function testFailed(string $message): void
+    {
+        if ($this->currentTestId === null) {
+            return;
+        }
+
+        $this->record(7, $message);
+    }
+
+    public function testErrored(string $message): void
+    {
+        if ($this->currentTestId === null) {
+            return;
+        }
+
+        $this->record(8, $message);
+    }
+
+    public function testSkipped(string $message): void
+    {
+        if ($this->currentTestId === null) {
+            return;
+        }
+
+        $this->record(1, $message);
+    }
+
+    public function testIncomplete(string $message): void
+    {
+        if ($this->currentTestId === null) {
+            return;
+        }
+
+        $this->record(2, $message);
+    }
+
+    public function testRisky(string $message): void
+    {
+        if ($this->currentTestId === null) {
+            return;
+        }
+
+        $this->record(5, $message);
+    }
+
+    /**
+     * @return array<string, array{status: int, message: string, time: float, assertions: int}>
+     */
+    public function all(): array
+    {
+        return $this->results;
+    }
+
+    public function recordAssertions(string $testId, int $assertions): void
+    {
+        if (isset($this->results[$testId])) {
+            $this->results[$testId]['assertions'] = $assertions;
+        }
+    }
+
+    /**
+     * Injects externally-collected results (e.g. partials flushed by parallel
+     * workers) into this collector so the parent can persist them in the same
+     * snapshot pass as non-parallel runs.
+     *
+     * @param  array<string, array{status: int, message: string, time: float, assertions: int}>  $results
+     */
+    public function merge(array $results): void
+    {
+        foreach ($results as $testId => $result) {
+            $this->results[$testId] = $result;
+        }
+    }
+
+    public function reset(): void
+    {
+        $this->results = [];
+        $this->currentTestId = null;
+        $this->startTime = null;
+    }
+
+    /**
+     * Called by the Finished subscriber after a test's outcome + assertion
+     * events have all fired. Clears the "currently recording" pointer so
+     * the next test's events don't get mis-attributed.
+     */
+    public function finishTest(): void
+    {
+        $this->currentTestId = null;
+        $this->startTime = null;
+    }
+
+    private function record(int $status, string $message): void
+    {
+        if ($this->currentTestId === null) {
+            return;
+        }
+
+        $time = $this->startTime !== null
+            ? round(microtime(true) - $this->startTime, 3)
+            : 0.0;
+
+        // PHPUnit can fire more than one outcome event per test — the
+        // canonical case is a risky pass (`Passed` then `ConsideredRisky`).
+        // Last-wins semantics preserve the most specific status; the
+        // existing assertion count (if any) survives the overwrite.
+        $existing = $this->results[$this->currentTestId] ?? null;
+
+        $this->results[$this->currentTestId] = [
+            'status' => $status,
+            'message' => $message,
+            'time' => $time,
+            'assertions' => $existing['assertions'] ?? 0,
+        ];
+    }
+}

src/Plugins/Tia/Storage.php

@@ -0,0 +1,170 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins\Tia;
+
+/**
+ * Resolves TIA's on-disk state directory.
+ *
+ * Default location: `$HOME/.pest/tia/<project-key>/`. Keeping state in the
+ * user's home directory (rather than under `vendor/pestphp/pest/`) means:
+ *
+ *   - `composer install` / path-repo reinstalls don't wipe the graph.
+ *   - The state lives outside the project tree, so there is nothing for
+ *     users to gitignore or accidentally commit.
+ *   - Multiple worktrees of the same repo share one cache naturally.
+ *
+ * The project key is derived from the git origin URL when available — a
+ * CI workflow running on `github.com/org/repo` and a developer's clone
+ * of the same remote both compute the *same* key, which is what lets the
+ * CI-uploaded baseline line up with the dev-side reader. When the project
+ * is not in git, the key falls back to a hash of the absolute path so
+ * unrelated projects on the same machine stay isolated.
+ *
+ * When no home directory is resolvable (`HOME` / `USERPROFILE` both
+ * unset — the tests-tia sandboxes strip these deliberately, and some
+ * locked-down CI environments do the same), state falls back to
+ * `<projectRoot>/.pest/tia/`. That path is project-local but still
+ * survives composer installs, so the degradation is graceful.
+ *
+ * @internal
+ */
+final class Storage
+{
+    /**
+     * Directory where TIA's State blobs live for `$projectRoot`.
+     */
+    public static function tempDir(string $projectRoot): string
+    {
+        $home = self::homeDir();
+
+        if ($home === null) {
+            return $projectRoot
+                .DIRECTORY_SEPARATOR.'.pest'
+                .DIRECTORY_SEPARATOR.'tia';
+        }
+
+        return $home
+            .DIRECTORY_SEPARATOR.'.pest'
+            .DIRECTORY_SEPARATOR.'tia'
+            .DIRECTORY_SEPARATOR.self::projectKey($projectRoot);
+    }
+
+    /**
+     * OS-neutral home directory — `HOME` on Unix, `USERPROFILE` on
+     * Windows. Returns null if neither resolves to an existing
+     * directory, in which case callers fall back to project-local state.
+     */
+    private static function homeDir(): ?string
+    {
+        foreach (['HOME', 'USERPROFILE'] as $key) {
+            $value = getenv($key);
+
+            if (is_string($value) && $value !== '' && is_dir($value)) {
+                return rtrim($value, '/\\');
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * Folder name for `$projectRoot` under `~/.pest/tia/`.
+     *
+     * Strategy — each step rules out a class of collision:
+     *
+     *   1. If the project has a git origin URL, use a **normalised** form
+     *      (`host/org/repo`, lowercased, no `.git` suffix) as the input.
+     *      `git@github.com:foo/bar.git`, `ssh://git@github.com/foo/bar`
+     *      and `https://github.com/foo/bar` all collapse to
+     *      `github.com/foo/bar` — three developers cloning the same repo
+     *      by different transports share one cache, which is what we want.
+     *   2. Otherwise, use the canonicalised absolute path (`realpath`).
+     *      Two unrelated `app/` checkouts under different parent folders
+     *      have different realpaths → different hashes → isolated.
+     *   3. Hash the chosen input with sha256 and keep the first 16 hex
+     *      chars — 64 bits of entropy makes accidental collision
+     *      astronomically unlikely even across thousands of projects.
+     *   4. Prefix with a slug of the project basename so `ls ~/.pest/tia/`
+     *      is readable; the slug is cosmetic only, all isolation comes
+     *      from the hash.
+     *
+     * Result: `myapp-a1b2c3d4e5f67890`.
+     */
+    private static function projectKey(string $projectRoot): string
+    {
+        $origin = self::originIdentity($projectRoot);
+
+        $realpath = @realpath($projectRoot);
+        $input = $origin ?? ($realpath === false ? $projectRoot : $realpath);
+
+        $hash = substr(hash('sha256', $input), 0, 16);
+        $slug = self::slug(basename($projectRoot));
+
+        return $slug === '' ? $hash : $slug.'-'.$hash;
+    }
+
+    /**
+     * Canonical git origin identity for `$projectRoot`, or null when
+     * no origin URL can be parsed. The returned form is
+     * `host/org/repo` (lowercased, `.git` stripped) so SSH / HTTPS / git
+     * protocol clones of the same remote produce the same value.
+     */
+    private static function originIdentity(string $projectRoot): ?string
+    {
+        $url = self::rawOriginUrl($projectRoot);
+
+        if ($url === null) {
+            return null;
+        }
+
+        // git@host:org/repo(.git)
+        if (preg_match('#^[\w.-]+@([\w.-]+):([\w./-]+?)(?:\.git)?/?$#', $url, $m) === 1) {
+            return strtolower($m[1].'/'.$m[2]);
+        }
+
+        // scheme://[user@]host[:port]/org/repo(.git)  — https, ssh, git, file
+        if (preg_match('#^[a-z]+://(?:[^@/]+@)?([^/:]+)(?::\d+)?/([\w./-]+?)(?:\.git)?/?$#i', $url, $m) === 1) {
+            return strtolower($m[1].'/'.$m[2]);
+        }
+
+        // Unrecognised form — hash the raw URL so different inputs still
+        // diverge, but lowercased so the only variance is intentional.
+        return strtolower($url);
+    }
+
+    private static function rawOriginUrl(string $projectRoot): ?string
+    {
+        $config = $projectRoot.DIRECTORY_SEPARATOR.'.git'.DIRECTORY_SEPARATOR.'config';
+
+        if (! is_file($config)) {
+            return null;
+        }
+
+        $raw = @file_get_contents($config);
+
+        if ($raw === false) {
+            return null;
+        }
+
+        if (preg_match('/\[remote "origin"\][^\[]*?url\s*=\s*(\S+)/s', $raw, $match) === 1) {
+            return trim($match[1]);
+        }
+
+        return null;
+    }
+
+    /**
+     * Filesystem-safe kebab of `$name`. Cosmetic only — used as a
+     * human-readable prefix on the hash so `~/.pest/tia/` lists
+     * recognisable folders.
+     */
+    private static function slug(string $name): string
+    {
+        $slug = strtolower($name);
+        $slug = preg_replace('/[^a-z0-9]+/', '-', $slug) ?? '';
+
+        return trim($slug, '-');
+    }
+}