Validate control packet size

Summary: resolves T13332

Reviewers: ivica

Reviewed By: ivica

Subscribers: miljen, iljazovic

Maniphest Tasks: T13332

Differential Revision: https://repo.mireo.local/D27000

test/unit/include/test_common/test_service.hpp

@@ -63,6 +63,9 @@ public:
 		);
 	}
 
+	const auto& connack_props() {
+		return _test_props;
+	}
 
 };