Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/cervixsoft/public_html/wsocket/vendor/ringcentral/psr7/tests/BufferStreamTest.php:6 Stack trace: #0 {main} thrown in /home/cervixsoft/public_html/wsocket/vendor/ringcentral/psr7/tests/BufferStreamTest.php on line 6