Fatal error: Uncaught Error: Class "Tests\TestCase" not found in E:\phpProject\TEST\fr_epr\fr_epr_reg\tests\Feature\FrenchSourceIsolationIntegrationTest.php:30 Stack trace: #0 {main} thrown in E:\phpProject\TEST\fr_epr\fr_epr_reg\tests\Feature\FrenchSourceIsolationIntegrationTest.php on line 30