Fatal error: Uncaught Error: Class 'React\Tests\Promise\Stream\TestCase' not found in /home/cervixsoft/public_html/wsocket/vendor/react/promise-stream/tests/FirstTest.php:8 Stack trace: #0 {main} thrown in /home/cervixsoft/public_html/wsocket/vendor/react/promise-stream/tests/FirstTest.php on line 8