Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/wizilen/www/vendor/hamcrest/hamcrest-php/tests/Hamcrest/MatcherAssertTest.php:6 Stack trace: #0 {main} thrown in /home/wizilen/www/vendor/hamcrest/hamcrest-php/tests/Hamcrest/MatcherAssertTest.php on line 6