Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\laragon\www\siesicis\ovh-sms\vendor\phar-io\manifest\tests\xml\ContainsElementTest.php:8 Stack trace: #0 {main} thrown in C:\laragon\www\siesicis\ovh-sms\vendor\phar-io\manifest\tests\xml\ContainsElementTest.php on line 8