🎨 Improve slicer to phpunit9

[casahugo]

Hey Guys ! fix #7

• You can no longer extend the TestRunner. The slice is done before launching the runner

• Management of the CI in github action, just activate the option

[mfn]

Unfortunately I cannot confirm this to work?

I had to hack around to get this installed in my project as I'm on PHPUnit 9.5, so I added a repository to my composer.json like this, pointing specifically to the last commit in this PR; this was necessary because the master branch composer.json requirements don't allow this to be installable for PHPUnit > 8:

  "repositories": [
    {
      "type": "package",
      "package": {
        "name": "wizaplace/phpunit-slicer",
        "type": "library",
        "version": "1234",
        "dist": {
          "url": "https://codeload.github.com/wizaplace/phpunit-slicer/legacy.zip/5b13677645c81689a5f5dd31ac88fa3240b741c7",
          "type": "zip"
        },
        "autoload": {
          "psr-4": {
            "Wizaplace\\PHPUnit\\Slicer\\": "src/"
          }
        },
        "bin": [
          "phpunit-slicer"
        ]
      }
    }
  ],

I.e. the point is to not have a require temporarily to solve the dependency resolution. Also version 1234 is just random 😏

I've then installed it via composer require --dev wizaplace/phpunit-slicer:1234 --prefer-dist

Anyhow, I then tried this in my project:

$ vendor/bin/phpunit-slicer --slice 1/6
PHPUnit suite slicer, running slice 1/6 (2267 tests: from #1 to #2267)
PHPUnit 9.5.0 by Sebastian Bergmann and contributors.

No tests executed!

or

$ vendor/bin/phpunit-slicer --slice 2/6
PHPUnit suite slicer, running slice 2/6 (2267 tests: from #2268 to #4534)
PHPUnit 9.5.0 by Sebastian Bergmann and contributors.

No tests executed!

😢

Regular phpunit works:

$ vendor/bin/phpunit
PHPUnit 9.5.0 by Sebastian Bergmann and contributors.

..............^C

There's not much more "magic" going on and a previous hack version of phpunit-slicer works too (i.e. the copypasta approach from #8

Any ideas?

[mfn]

Here's the phphunit.xml.dist I'm using:

<?xml version="1.0" encoding="UTF-8"?>
<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd"
         backupGlobals="false"
         backupStaticAttributes="false"
         bootstrap="tests/bootstrap.php"
         colors="true"
         convertErrorsToExceptions="true"
         convertNoticesToExceptions="true"
         convertWarningsToExceptions="true"
         processIsolation="false"
         stopOnFailure="false"
         cacheResult="false"
         failOnWarning="true"
>
  <testsuites>
    <testsuite name="Application Test Suite">
      <directory>./tests/</directory>
    </testsuite>
  </testsuites>
  <coverage>
    <include>
      <directory suffix=".php">app/</directory>
    </include>
  </coverage>
</phpunit>

And here the tests/bootstrap.php, just useful Laravel-ish thing added befiore the regular vendor/autoload.php; I also tried without them but no change:

<?php declare(strict_types = 1);

// Always ensure the cached bootstrap files are removed before running tests
// Especially important for auto-discover installed packages
// when switching branches
foreach (glob(__DIR__ . '/../bootstrap/cache/*.php') as $filename) {
    unlink($filename);
}

require __DIR__ . '/../vendor/autoload.php';