Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/alkhalaffamily/public_html/qwader/vendor/sebastian/type/tests/unit/CallableTypeTest.php:24 Stack trace: #0 {main} thrown in /home/alkhalaffamily/public_html/qwader/vendor/sebastian/type/tests/unit/CallableTypeTest.php on line 24