Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\xampp\htdocs\OFFLINE\VulturAr\laravel6-php74\laravel\vendor\scrivo\highlight.php\test\HighlightTest.php:34 Stack trace: #0 {main} thrown in C:\xampp\htdocs\OFFLINE\VulturAr\laravel6-php74\laravel\vendor\scrivo\highlight.php\test\HighlightTest.php on line 34