Fatal error: Uncaught Error: Class "Tests\TestCase" not found in C:\xampp\htdocs\fintraBackend\fi_bo\tests\Feature\MarketIndexSnapshotMergeTest.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\fintraBackend\fi_bo\tests\Feature\MarketIndexSnapshotMergeTest.php on line 12