Generating system inputs satisfying complex constraints is still a challenge for modern test generators. We present XMLMATE, a search-based test generator specially aimed at XML-based systems. XMLMATE leverages program structure, existing XML schemas, and XML inputs to generate, mutate, recombine, and evolve valid XML inputs. Over a set of seven XML-based systems, XMLMATE detected 31 new unique failures in production code, all triggered by system inputs and thus true alarms.
Proceedings of the 22nd ACM SIGSOFT International Symposium on Foundations of Software Engineering