Fatal error: Uncaught Error: Class "Tests\TestCase" not found in C:\AppServ\Apache\2.4.69\htdocs\isha_security\tests\Feature\UpdateHealthStateTest.php:16 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.69\htdocs\isha_security\tests\Feature\UpdateHealthStateTest.php on line 16