Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /users/energydata/www/volkszaehler.org/vendor/cboden/ratchet/tests/unit/Wamp/TopicManagerTest.php:7 Stack trace: #0 {main} thrown in /users/energydata/www/volkszaehler.org/vendor/cboden/ratchet/tests/unit/Wamp/TopicManagerTest.php on line 7