Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/wwvicp/public_html/API4/vendor/mtownsend/request-xml/tests/RequestXmlTest.php:8 Stack trace: #0 {main} thrown in /home/wwvicp/public_html/API4/vendor/mtownsend/request-xml/tests/RequestXmlTest.php on line 8