TimeoutPHPUnitExtension.php

<?php

namespace App\Test;

use App\Test\TimeoutMaxDuration;
use PHPUnit\Framework\TestCase;
use PHPUnit\Runner\AfterTestHook;

class TimeoutPHPUnitExtension extends TestCase implements AfterTestHook
{
    public function executeAfterTest(string $test, float $time): void
    {
        $maxDuration = TimeoutMaxDuration::$timeout;
        self::assertLessThan(TimeoutTest::$timeout, $time, 
            sprintf('The test "%s" was too long, it tooks "%f" seconds and the maximum allowed is "%d"', 
                $test, 
                $time,
                $maxDuration
            )
        );

        TimeoutTest::resetTimeout();
    }
}