feat: inline testing

.gitattributes

@@ -12,3 +12,7 @@ phpstan.neon             export-ignore
 CHANGELOG.md             export-ignore
 CONTRIBUTING.md          export-ignore
 README.md                export-ignore
+
+# Inline
+/src/NotExported         export-ignore
+/phpunit.inline.xml      export-ignore

composer.json

@@ -51,8 +51,15 @@
     },
     "require-dev": {
         "pestphp/pest-dev-tools": "^2.0.0",
+        "pestphp/pest-plugin-inline": "2.x-dev",
         "symfony/process": "^6.2.0"
     },
+    "repositories": {
+        "inline": {
+            "type": "path",
+            "url": "../pest-plugin-inline"
+        }
+    },
     "minimum-stability": "dev",
     "prefer-stable": true,
     "config": {
@@ -70,6 +77,7 @@
         "test:lint": "pint --test",
         "test:types": "phpstan analyse --ansi --memory-limit=-1 --debug",
         "test:unit": "php bin/pest --colors=always --exclude-group=integration --compact",
+        "test:inline": "php bin/pest --colors=always --configuration=phpunit.inline.xml",
         "test:parallel": "exit 1",
         "test:integration": "php bin/pest --colors=always --group=integration -v",
         "update:snapshots": "REBUILD_SNAPSHOTS=true php bin/pest --colors=always",

phpunit.inline.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.0/phpunit.xsd"
+         backupGlobals="false"
+         beStrictAboutTestsThatDoNotTestAnything="true"
+         beStrictAboutOutputDuringTests="true"
+         bootstrap="vendor/autoload.php"
+         cacheResult="false"
+         colors="true"
+         failOnRisky="true"
+         failOnWarning="true"
+         processIsolation="false"
+         stopOnError="false"
+         stopOnFailure="false"
+         cacheDirectory=".phpunit.cache"
+         backupStaticProperties="false"
+         displayDetailsOnIncompleteTests="true"
+         displayDetailsOnSkippedTests="true"
+         displayDetailsOnTestsThatTriggerDeprecations="true"
+         displayDetailsOnTestsThatTriggerErrors="true"
+         displayDetailsOnTestsThatTriggerNotices="true"
+         displayDetailsOnTestsThatTriggerWarnings="true"
+>
+    <testsuites>
+        <testsuite name="default">
+            <directory suffix=".php">./src</directory>
+        </testsuite>
+    </testsuites>
+    <coverage>
+        <include>
+            <directory suffix=".php">./src</directory>
+        </include>
+    </coverage>
+</phpunit>

src/NotExported/MyTestCase.php

@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\NotExported;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @internal
+ */
+class MyTestCase extends TestCase // @phpstan-ignore-line
+{
+    public function assertIsTestable(string $testable): void
+    {
+        static::assertSame(MyTestableClass::class, $testable);
+    }
+}

src/NotExported/MyTestableClass.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\NotExported;
+
+/**
+ * @internal
+ */
+final class MyTestableClass
+{
+    public function foo(): void
+    {
+        // ...
+    }
+}
+
+it('foo', function () {
+    $testable = new MyTestableClass();
+
+    $this->assertIsTestable(get_class($testable)); // @phpstan-ignore-line
+});

src/Plugin.php

@@ -23,7 +23,7 @@ final class Plugin
     public static function uses(string ...$traits): void
     {
         self::$callables[] = function () use ($traits): void {
-            uses(...$traits)->in(TestSuite::getInstance()->rootPath.DIRECTORY_SEPARATOR.testDirectory());
+            uses(...$traits)->in(TestSuite::getInstance()->rootPath);
         };
     }
 }

tests/Pest.php

@@ -1,9 +1,12 @@
 <?php
 
+use Pest\NotExported\MyTestCase;
 use Tests\CustomTestCaseInSubFolders\SubFolder\SubFolder\CustomTestCaseInSubFolder;
 
 uses(CustomTestCaseInSubFolder::class)->in('PHPUnit/CustomTestCaseInSubFolders/SubFolder/SubFolder');
 
+uses(MyTestCase::class)->in('../src/NotExported');
+
 uses()->group('integration')->in('Visual');
 
 // NOTE: global test value container to be mutated and checked across files, as needed