Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /users/quirl/www/filemanager/spark/protected/runtime/updater/backups/vendor_1699354732/sebastian/environment/tests/OperatingSystemTest.php:17 Stack trace: #0 {main} thrown in /users/quirl/www/filemanager/spark/protected/runtime/updater/backups/vendor_1699354732/sebastian/environment/tests/OperatingSystemTest.php on line 17