Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/demohatinco/public_html/petmates_backend/vendor/square/connect/test/Model/OrderReturnServiceChargeTest.php:19 Stack trace: #0 {main} thrown in /home/demohatinco/public_html/petmates_backend/vendor/square/connect/test/Model/OrderReturnServiceChargeTest.php on line 19