Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /var/www/html/w/vendor/onoi/event-dispatcher/tests/phpunit/Integration/EventRegistryDispatchTest.php:19 Stack trace: #0 {main} thrown in /var/www/html/w/vendor/onoi/event-dispatcher/tests/phpunit/Integration/EventRegistryDispatchTest.php on line 19