Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/ffl2020/public_html/vendor/goetas-webservices/xsd2php-runtime/tests/XmlSchemaDateHandlerSerializationTest.php:18 Stack trace: #0 {main} thrown in /home/ffl2020/public_html/vendor/goetas-webservices/xsd2php-runtime/tests/XmlSchemaDateHandlerSerializationTest.php on line 18