Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\xampp\htdocs\astra-backoffice\vendor\sebastian\global-state\tests\unit\SnapshotTest.php:27 Stack trace: #0 {main} thrown in C:\xampp\htdocs\astra-backoffice\vendor\sebastian\global-state\tests\unit\SnapshotTest.php on line 27