Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/app/htdocs/message_gateway/vendor/symfony/http-kernel/Tests/Controller/ArgumentResolver/ServiceValueResolverTest.php:20
Stack trace:
#0 {main}
thrown in /home/app/htdocs/message_gateway/vendor/symfony/http-kernel/Tests/Controller/ArgumentResolver/ServiceValueResolverTest.php on line 20