Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /users/maximus/www/storage/vendor/guzzlehttp/ringphp/tests/Future/FutureValueTest.php:8
Stack trace:
#0 {main}
thrown in /users/maximus/www/storage/vendor/guzzlehttp/ringphp/tests/Future/FutureValueTest.php on line 8