Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /www/shop/vendor/oxid-esales/oxideshop-ce/tests/Unit/Internal/Container/DataObject/DIServiceWrapperTest.php:16 Stack trace: #0 {main} thrown in /www/shop/vendor/oxid-esales/oxideshop-ce/tests/Unit/Internal/Container/DataObject/DIServiceWrapperTest.php on line 16