Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/techflixsolution/accordia.livelyfusion.com/vendor/staabm/side-effects-detector/tests/SideEffectsDetectorTest.php:9 Stack trace: #0 {main} thrown in /home/techflixsolution/accordia.livelyfusion.com/vendor/staabm/side-effects-detector/tests/SideEffectsDetectorTest.php on line 9