Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/clapsabo/test/vendor/symfony/web-link/Tests/EventListener/AddLinkHeaderListenerTest.php:27 Stack trace: #0 {main} thrown in /home/clapsabo/test/vendor/symfony/web-link/Tests/EventListener/AddLinkHeaderListenerTest.php on line 27