Fatal error: Uncaught Error: Class 'OxidEsales\TestingLibrary\UnitTestCase' not found in /www/shop/vendor/makaira/oxid-connect-essential/tests/Unit/Modifier/Common/PriceModifierTest.php:9 Stack trace: #0 {main} thrown in /www/shop/vendor/makaira/oxid-connect-essential/tests/Unit/Modifier/Common/PriceModifierTest.php on line 9