Warning: require_once(PHPUnit/Framework/TestCase.php): failed to open stream: No such file or directory in /sites/aghdrive/var/pear/test/Event_Dispatcher/tests/DispatcherTest.php on line 12

Fatal error: require_once(): Failed opening required 'PHPUnit/Framework/TestCase.php' (include_path='.:/usr/local/lib/php') in /sites/aghdrive/var/pear/test/Event_Dispatcher/tests/DispatcherTest.php on line 12