Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\laragon\www\SIMRS2\vendor\mike42\gfx-php\test\unit\Codec\PnmCodecTest.php:16 Stack trace: #0 {main} thrown in C:\laragon\www\SIMRS2\vendor\mike42\gfx-php\test\unit\Codec\PnmCodecTest.php on line 16