Modernize skeleton to PHP 8.2+, PSR-12, and PHPUnit 11/12

- Bump PHPUnit from the long-EOL 3.7.* to ^11.0 || ^12.0, dropping the
  unmaintained phpunit/dbunit and phpunit/phpunit-selenium dev
  dependencies that were unused by the skeleton and carried unnecessary
  supply-chain risk.
- Switch autoloading from PSR-0 to PSR-4 and flatten lib/Application and
  tests/Application into lib/ and tests/ so the namespace root maps
  directly onto the source directory (mirrors DBDiff's src/ layout).
- Rewrite Example.php and ExampleTest.php for PHP 8.2+: strict_types,
  scalar/union type hints, constructor-less typed property, PHPUnit
  attribute-based #[DataProvider] instead of the removed @dataProvider/
  @ExpectedException annotations, and PSR-12 formatting throughout.
- Modernize phpunit.xml to the PHPUnit 11 schema with a <source> block
  replacing the legacy <coverage><include> config.
- Add PHP-CS-Fixer with a PSR-12 ruleset plus composer cs-check/cs-fix
  scripts.
- Replace .travis.yml (PHP 5.4/5.5/5.6, long EOL and unpatched) with a
  GitHub Actions workflow that validates composer.json, checks coding
  standards, and runs tests across PHP 8.2-8.4.
- Remove the committed composer.phar binary (stale, unpatched
  executable checked into version control) in favor of installing
  Composer via the CI tool cache / the developer's own install.
- Update README for the new install/test/customize workflow.

composer audit reports no known vulnerabilities in the new dependency
set.

Author: claude

.github/workflows/tests.yml

@@ -0,0 +1,39 @@
+name: Tests
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+    name: PHP ${{ matrix.php-version }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        php-version: ['8.2', '8.3', '8.4']
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-version }}
+          coverage: none
+          tools: composer:v2
+
+      - name: Validate composer.json
+        run: composer validate --strict
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress
+
+      - name: Check coding standards
+        run: composer cs-check
+
+      - name: Run tests
+        run: composer test

.gitignore

@@ -1,3 +1,9 @@
 vendor/
 composer.lock
 .project
+.idea/
+.vscode/
+.DS_Store
+.phpunit.cache/
+.phpunit.result.cache
+.php-cs-fixer.cache

.php-cs-fixer.dist.php

@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+$finder = (new PhpCsFixer\Finder())
+    ->in([__DIR__ . '/lib', __DIR__ . '/tests']);
+
+return (new PhpCsFixer\Config())
+    ->setRiskyAllowed(true)
+    ->setRules([
+        '@PSR12' => true,
+        'declare_strict_types' => true,
+        'strict_param' => true,
+        'array_syntax' => ['syntax' => 'short'],
+        'ordered_imports' => true,
+        'no_unused_imports' => true,
+        'trailing_comma_in_multiline' => true,
+    ])
+    ->setFinder($finder);

.travis.yml

@@ -1,4 +1,5 @@
-# PHPUnit Skeleton [![Build Status](https://travis-ci.org/jasdeepkhalsa/phpunit-skeleton.svg)](https://travis-ci.org/jasdeepkhalsa/phpunit-skeleton)
+# PHPUnit Skeleton [![Tests](https://github.com/jasdeepkhalsa/phpunit-skeleton/actions/workflows/tests.yml/badge.svg)](https://github.com/jasdeepkhalsa/phpunit-skeleton/actions/workflows/tests.yml)
+
 _Get up and running with PHPUnit testing easily for your project with this skeleton_
 
 * Are you frustrated with trying to install and configure PHPUnit?
@@ -9,60 +10,68 @@ Well, I'm happy to let you know that you just need to `clone` this repo and all
 
 We have also included a sample PHP class so you can learn a few tricks in how to use PHPUnit in your projects!
 
-## Simple-tastic 3 Step Installation ##
-* Open a Terminal. Download the repo with `git clone https://github.com/jasdeepkhalsa/phpunit-skeleton.git`
-* `cd` into where you downloaded your repo and run `php composer.phar self-update`
-* Now, run `php composer.phar install --dev`
+## Requirements ##
+* PHP 8.2 or higher
+* [Composer](https://getcomposer.org/)
 
-Note: `php` refers to the location of your php executable, if its not on your system's path
+## Simple-tastic 2 Step Installation ##
+* Open a Terminal. Download the repo with `git clone https://github.com/jasdeepkhalsa/phpunit-skeleton.git`
+* `cd` into where you downloaded your repo and run `composer install`
 
 ## Run PHPUnit ##
 * Open a Terminal
 * `cd` to your project root
-* Type `./vendor/bin/phpunit` and...magic! Tests (should) now be running!
+* Run `composer test` (or `./vendor/bin/phpunit` directly) and...magic! Tests (should) now be running!
 
 You should see something like...
 
-		PHPUnit 3.7.19 by Sebastian Bergmann.
-		
-		Configuration read from /(directory)/phpunit-skeleton/phpunit.xml
-		
-		....
-		
-		Time: 0 seconds, Memory: 3.00Mb
-		
-		OK (4 tests, 4 assertions)
-
-## Customizing PHPUnit Skeleton  ##
+```
+PHPUnit 11.x by Sebastian Bergmann and contributors.
+
+Runtime:       PHP 8.3.x
+Configuration: /(directory)/phpunit-skeleton/phpunit.xml
+
+..                                                                  2 / 2 (100%)
+
+Time: 00:00.010, Memory: 8.00 MB
+
+OK (2 tests, 3 assertions)
+```
+
+## Checking coding standards ##
+This skeleton ships with [PHP-CS-Fixer](https://cs.symfony.com/) configured for the PSR-12 coding standard.
+
+* Check for violations: `composer cs-check`
+* Automatically fix violations: `composer cs-fix`
+
+## Customizing PHPUnit Skeleton ##
 Once you've successfully installed PHPUnit Skeleton, you'll probably want to customize it to your application.
 
 ### How do I change the name of the application? ###
 Once you have the name of your application which we shall refer to as `YourApp`, then do the following:
 
-1. First you have to change the entry `Application` in the `composer.json` file to `YourApp` under the object `psr-0`:
-
-  >		{
-  >			"require-dev": {
-  >				"phpunit/phpunit": "3.7.*",
-  >				"phpunit/dbunit": ">=1.2",
-  >				"phpunit/phpunit-selenium": ">=1.2"
-  >			},
-  >			"autoload": {
-  >				"psr-0": {
-  >					"YourApp": "lib/"
-  >				}
-  >			}
-  >		}
-  >
-
-2. Next, rename the following two directories from `Application` to `YourApp`:
-	* Rename `/lib/Application/` to `/lib/YourApp/`
-	* Rename `/tests/Application/` to `/tests/YourApp/`
-3. Finally update the `namespace` inside the following php files:
-	* Inside `/lib/YourApp/Example.php` update `namespace Application;` to `namespace YourApp;`
-	* Inside `/tests/YourApp/ExampleTest.php` update `$this->obj = new Application\Example;` to `$this->obj = new YourApp\Example;`
-4. Run `php composer.phar update` again to update the sources
-5. Run `./vendor/bin/phpunit` again to make sure all tests are passing again
+1. First you have to change the entry `Application` in the `composer.json` file to `YourApp` under `autoload.psr-4` (and `autoload-dev.psr-4` if you keep the same pattern for tests):
+
+   ```json
+   {
+       "autoload": {
+           "psr-4": {
+               "YourApp\\": "lib/"
+           }
+       },
+       "autoload-dev": {
+           "psr-4": {
+               "Tests\\": "tests/"
+           }
+       }
+   }
+   ```
+
+2. Update the `namespace` inside the following PHP files:
+    * Inside `/lib/Example.php` update `namespace Application;` to `namespace YourApp;`
+    * Inside `/tests/ExampleTest.php` update `use Application\Example;` to `use YourApp\Example;`
+3. Run `composer dump-autoload` to refresh the autoloader
+4. Run `composer test` again to make sure all tests are passing again
 
 ## Credits ##
 * To the wonderful people on [Stack Overflow](http://stackoverflow.com/questions/15710410/autoloading-classes-in-phpunit-using-composer-and-autoload-php) for helping me understand PHPUnit better

README.md

@@ -1,12 +1,39 @@
-{
-	"require-dev": {
-		"phpunit/phpunit": "3.7.*",
-		"phpunit/dbunit": ">=1.2",
-		"phpunit/phpunit-selenium": ">=1.2"
-	},
-	"autoload": {
-		"psr-0": {
-			"Application": "lib/"
-		}
-	}
-}
+{
+    "name": "jasdeepkhalsa/phpunit-skeleton",
+    "description": "A minimal, modern skeleton for getting started with PHPUnit testing in your PHP project.",
+    "type": "library",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Jasdeep Khalsa"
+        }
+    ],
+    "require": {
+        "php": ">=8.2"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^11.0 || ^12.0",
+        "friendsofphp/php-cs-fixer": "^3.75"
+    },
+    "autoload": {
+        "psr-4": {
+            "Application\\": "lib/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Tests\\": "tests/"
+        }
+    },
+    "config": {
+        "sort-packages": true,
+        "optimize-autoloader": true
+    },
+    "minimum-stability": "stable",
+    "prefer-stable": true,
+    "scripts": {
+        "test": "phpunit",
+        "cs-check": "php-cs-fixer fix --dry-run --diff",
+        "cs-fix": "php-cs-fixer fix"
+    }
+}

composer.json

@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Application;
+
+class Example
+{
+    private int|float $number = 0;
+
+    /**
+     * @throws \InvalidArgumentException if either argument is not numeric.
+     */
+    public function add(mixed $x, mixed $y): int|float
+    {
+        if (!is_numeric($x) || !is_numeric($y)) {
+            throw new \InvalidArgumentException('Both arguments must be numeric.');
+        }
+
+        $this->number = $x + $y;
+
+        return $this->number;
+    }
+}

composer.phar

@@ -1,8 +1,19 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<phpunit bootstrap="./vendor/autoload.php">
-    <testsuites>
-        <testsuite name="The project's test suite">
-            <directory>./tests</directory>
-        </testsuite>
-    </testsuites>
-</phpunit>
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.5/phpunit.xsd"
+         bootstrap="vendor/autoload.php"
+         colors="true"
+         cacheDirectory=".phpunit.cache"
+>
+    <testsuites>
+        <testsuite name="Application Test Suite">
+            <directory suffix="Test.php">./tests</directory>
+        </testsuite>
+    </testsuites>
+
+    <source>
+        <include>
+            <directory suffix=".php">./lib</directory>
+        </include>
+    </source>
+</phpunit>