Fatal error: Uncaught Error: Class 'OxidTestCase' not found in /www/shop/vendor/oxid-esales/oxideshop-ce/tests/Unit/Core/OnlineRequestTest.php:13 Stack trace: #0 {main} thrown in /www/shop/vendor/oxid-esales/oxideshop-ce/tests/Unit/Core/OnlineRequestTest.php on line 13