Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/app/htdocs/message_gateway/vendor/sebastian/global-state/tests/SnapshotTest.php:19 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway/vendor/sebastian/global-state/tests/SnapshotTest.php on line 19