Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/user1111058/www/dev.companysam.by/vendor/ringcentral/psr7/tests/BufferStreamTest.php:6 Stack trace: #0 {main} thrown in /home/user1111058/www/dev.companysam.by/vendor/ringcentral/psr7/tests/BufferStreamTest.php on line 6