Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /var/www/html/includes/google/vendor/guzzlehttp/ringphp/tests/Client/StreamHandlerTest.php:8 Stack trace: #0 {main} thrown in /var/www/html/includes/google/vendor/guzzlehttp/ringphp/tests/Client/StreamHandlerTest.php on line 8