Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /opt/lampp/htdocs/myhospitalnow/suitecrm/vendor/ezimuel/guzzlestreams/tests/NullStreamTest.php:8 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/suitecrm/vendor/ezimuel/guzzlestreams/tests/NullStreamTest.php on line 8