Fatal error: Uncaught Error: Class "Tests\TestCase" not found in C:\laragon\htdocs\eloboost24\tests\Unit\Cashback\CashbackCalculatorTest.php:21 Stack trace: #0 {main} thrown in C:\laragon\htdocs\eloboost24\tests\Unit\Cashback\CashbackCalculatorTest.php on line 21