Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\laragon\www\infinity\vendor\squizlabs\php_codesniffer\tests\Core\Util\Help\HelpTest.php:23 Stack trace: #0 {main} thrown in C:\laragon\www\infinity\vendor\squizlabs\php_codesniffer\tests\Core\Util\Help\HelpTest.php on line 23