Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /home/ondemand/test.ondemandpro.net/vendor/sebastian/environment/tests/RuntimeTest.php:15 Stack trace: #0 {main} thrown in /home/ondemand/test.ondemandpro.net/vendor/sebastian/environment/tests/RuntimeTest.php on line 15