Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/bimmertest/BookStack/vendor/ssddanbrown/asserthtml/tests/EdgeCaseTest.php:8 Stack trace: #0 {main} thrown in /home/bimmertest/BookStack/vendor/ssddanbrown/asserthtml/tests/EdgeCaseTest.php on line 8