Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/app/htdocs/message_gateway/vendor/sebastian/comparator/tests/DateTimeComparatorTest.php:21 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway/vendor/sebastian/comparator/tests/DateTimeComparatorTest.php on line 21