wip

tests-tia/Fixtures/sample-project/composer.json

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+{
+    "name": "pest/tia-sample-project",
+    "type": "project",
+    "description": "Throw-away fixture used by tests-tia to exercise TIA end-to-end.",
+    "require": {
+        "php": "^8.3"
+    },
+    "autoload": {
+        "psr-4": {
+            "App\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Tests\\": "tests/"
+        }
+    },
+    "config": {
+        "sort-packages": true,
+        "allow-plugins": {
+            "pestphp/pest-plugin": true,
+            "php-http/discovery": true
+        }
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
+}

tests-tia/Fixtures/sample-project/phpunit.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
+         bootstrap="vendor/autoload.php"
+         colors="true"
+         cacheDirectory=".phpunit.cache"
+         executionOrder="depends,defects"
+         failOnRisky="false"
+         failOnWarning="false"
+         displayDetailsOnTestsThatTriggerWarnings="true"
+         displayDetailsOnTestsThatTriggerNotices="true">
+    <testsuites>
+        <testsuite name="default">
+            <directory>tests</directory>
+        </testsuite>
+    </testsuites>
+    <source>
+        <include>
+            <directory>src</directory>
+        </include>
+    </source>
+</phpunit>

tests-tia/Fixtures/sample-project/src/Greeter.php

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+<?php
+
+declare(strict_types=1);
+
+namespace App;
+
+final class Greeter
+{
+    public static function greet(string $name): string
+    {
+        return sprintf('Hello, %s!', $name);
+    }
+}

tests-tia/Fixtures/sample-project/src/Math.php

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+<?php
+
+declare(strict_types=1);
+
+namespace App;
+
+final class Math
+{
+    public static function add(int $a, int $b): int
+    {
+        return $a + $b;
+    }
+}

tests-tia/Fixtures/sample-project/tests/GreeterTest.php

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+<?php
+
+declare(strict_types=1);
+
+use App\Greeter;
+
+test('greeter greets', function () {
+    expect(Greeter::greet('Nuno'))->toBe('Hello, Nuno!');
+});

tests-tia/Fixtures/sample-project/tests/MathTest.php

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+<?php
+
+declare(strict_types=1);
+
+use App\Math;
+
+test('math add', function () {
+    expect(Math::add(2, 3))->toBe(5);
+});
+
+test('math add negative', function () {
+    expect(Math::add(-1, 1))->toBe(0);
+});

tests-tia/Fixtures/sample-project/tests/Pest.php

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+<?php
+
+declare(strict_types=1);
+
+// Intentionally minimal — tests-tia exercises TIA against the simplest
+// possible Pest harness. Anything more and we end up debugging the
+// fixture instead of the feature under test.