feat(tests): integrate Pest testing framework and set up initial test structure

- Added Pest as a development dependency for enhanced testing capabilities.
- Created a PHPUnit configuration file (`phpunit.xml`) for test suite management.
- Established a base test case class (`TestCase.php`) for consistent test structure.
- Implemented example tests in both feature and unit directories to demonstrate usage.
- Introduced a custom Pest file (`Pest.php`) to extend functionality and define global helpers.

This setup streamlines the testing process and provides a foundation for future test development.

composer.json

@@ -80,6 +80,7 @@
     "z4kn4fein/php-semver": "^v3.0.0"
   },
   "require-dev": {
+    "pestphp/pest": "^3.8",
     "symfony/var-dumper": "^6.4"
   },
   "autoload": {
@@ -87,10 +88,16 @@
       "TorrentPier\\": "src/"
     }
   },
+  "autoload-dev": {
+    "psr-4": {
+      "Tests\\": "tests/"
+    }
+  },
   "config": {
     "sort-packages": true,
     "optimize-autoloader": true,
     "allow-plugins": {
+      "pestphp/pest-plugin": true,
       "php-http/discovery": true
     }
   },

phpunit.xml

@@ -0,0 +1,18 @@
+<?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"
+>
+    <testsuites>
+        <testsuite name="Test Suite">
+            <directory suffix="Test.php">./tests</directory>
+        </testsuite>
+    </testsuites>
+    <source>
+        <include>
+            <directory>app</directory>
+            <directory>src</directory>
+        </include>
+    </source>
+</phpunit>

tests/Feature/ExampleTest.php

@@ -0,0 +1,5 @@
+<?php
+
+test('example', function () {
+    expect(true)->toBeTrue();
+});

tests/Pest.php

@@ -0,0 +1,45 @@
+<?php
+
+/*
+|--------------------------------------------------------------------------
+| Test Case
+|--------------------------------------------------------------------------
+|
+| The closure you provide to your test functions is always bound to a specific PHPUnit test
+| case class. By default, that class is "PHPUnit\Framework\TestCase". Of course, you may
+| need to change it using the "pest()" function to bind a different classes or traits.
+|
+*/
+
+pest()->extend(Tests\TestCase::class)->in('Feature');
+
+/*
+|--------------------------------------------------------------------------
+| Expectations
+|--------------------------------------------------------------------------
+|
+| When you're writing tests, you often need to check that values meet certain conditions. The
+| "expect()" function gives you access to a set of "expectations" methods that you can use
+| to assert different things. Of course, you may extend the Expectation API at any time.
+|
+*/
+
+expect()->extend('toBeOne', function () {
+    return $this->toBe(1);
+});
+
+/*
+|--------------------------------------------------------------------------
+| Functions
+|--------------------------------------------------------------------------
+|
+| While Pest is very powerful out-of-the-box, you may have some testing code specific to your
+| project that you don't want to repeat in every file. Here you can also expose helpers as
+| global functions to help you to reduce the number of lines of code in your test files.
+|
+*/
+
+function something()
+{
+    // ..
+}

tests/TestCase.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Tests;
+
+use PHPUnit\Framework\TestCase as BaseTestCase;
+
+abstract class TestCase extends BaseTestCase
+{
+    //
+}

tests/Unit/ExampleTest.php

@@ -0,0 +1,5 @@
+<?php
+
+test('example', function () {
+    expect(true)->toBeTrue();
+});