Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /var/www/html/src/vendor/goetas-webservices/xsd2php-runtime/tests/XmlSchemaDateHandlerDeserializationTest.php:19 Stack trace: #0 {main} thrown in /var/www/html/src/vendor/goetas-webservices/xsd2php-runtime/tests/XmlSchemaDateHandlerDeserializationTest.php on line 19