Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/mulwnet/beta.mulw.net/vendor/robthree/twofactorauth/tests/Providers/Qr/IQRCodeProviderTest.php:13 Stack trace: #0 {main} thrown in /home/mulwnet/beta.mulw.net/vendor/robthree/twofactorauth/tests/Providers/Qr/IQRCodeProviderTest.php on line 13