Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /var/www/html/invoice-backendNEWOLD/vendor/sebastian/type/tests/unit/TypeTest.php:24 Stack trace: #0 {main} thrown in /var/www/html/invoice-backendNEWOLD/vendor/sebastian/type/tests/unit/TypeTest.php on line 24