An Approach to T-Way Test Sequence Generation With Constraints

In this paper we address the problem of constraint handling in t-way test sequence generation. We develop a notation for specifying sequencing constraints and present a t-way test sequence generation that handles the constraints specified in this notation. We report a case study in which we applied our notation and test generation algorithm to a real-life communication protocol. Our experience indicates that our notation is intuitive to use and allows us to express important sequencing constraints for the protocol. However, the test generation algorithm takes a significant amount of time. This work is part of our larger effort to make t-way sequence testing practically useful.