Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/ovidiant/public_html/aaaaz/ovidiantech/vendor/kalnoy/nestedset/tests/ScopedNodeTest.php:6 Stack trace: #0 {main} thrown in /home/ovidiant/public_html/aaaaz/ovidiantech/vendor/kalnoy/nestedset/tests/ScopedNodeTest.php on line 6