This week our automated tools uncovered a fatal exception before it reached the client. Nick and Anton, 2 of the full-time testers on our team have written a testing tool they call Random Walker that simulates interactions with the user interface as clicks and gestures. It has helped uncover numerous issues, particularly NullReferenceExceptions, more often than not emanating from third-party libraries. It typically finds issues that are not easily found by manual testing or our extensive suite of unit and [...]