Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/rosengar/Lib/composerRosengart/vendor/duosecurity/duo_universal_php/tests/ClientTest.php:10 Stack trace: #0 {main} thrown in /home/rosengar/Lib/composerRosengart/vendor/duosecurity/duo_universal_php/tests/ClientTest.php on line 10