Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\xampp\htdocs\projet-GMAO\vendor\tgalopin\html-sanitizer\tests\LoggedSanitizerTest.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\projet-GMAO\vendor\tgalopin\html-sanitizer\tests\LoggedSanitizerTest.php on line 18