Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/wittyly/public_html/live/hr-witty/vendor/sebastian/global-state/tests/CodeExporterTest.php:20 Stack trace: #0 {main} thrown in /home/wittyly/public_html/live/hr-witty/vendor/sebastian/global-state/tests/CodeExporterTest.php on line 20