Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/app/htdocs/message_gateway_20231016/vendor/phpdocumentor/reflection-docblock/tests/unit/DocBlock/SerializerTest.php:22 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway_20231016/vendor/phpdocumentor/reflection-docblock/tests/unit/DocBlock/SerializerTest.php on line 22