Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/etrainingondeman/public_html/66676484/vendor/square/connect/test/Model/CreateCheckoutRequestTest.php:20 Stack trace: #0 {main} thrown in /home/etrainingondeman/public_html/66676484/vendor/square/connect/test/Model/CreateCheckoutRequestTest.php on line 20