Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/app/htdocs/message_gateway_20231016/vendor/phpunit/php-code-coverage/tests/TestCase.php:20 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway_20231016/vendor/phpunit/php-code-coverage/tests/TestCase.php on line 20