Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/ehtio/tecon/vendor/guzzlehttp/oauth-subscriber/tests/Oauth1Test.php:12 Stack trace: #0 {main} thrown in /home/ehtio/tecon/vendor/guzzlehttp/oauth-subscriber/tests/Oauth1Test.php on line 12