Fatal error: Uncaught Error: Class "Tests\TestCase" not found in E:\phpProject\TEST\fr_epr\fr_epr_reg\tests\Unit\Services\EprReg\RegistrationMailServiceTest.php:14 Stack trace: #0 {main} thrown in E:\phpProject\TEST\fr_epr\fr_epr_reg\tests\Unit\Services\EprReg\RegistrationMailServiceTest.php on line 14