Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in C:\laragon4\www\AlaravelOLD\vendor\scrivo\highlight.php\test\MarkupTest.php:33 Stack trace: #0 {main} thrown in C:\laragon4\www\AlaravelOLD\vendor\scrivo\highlight.php\test\MarkupTest.php on line 33