Test sequence computation for regression testing of reactive systems

  • Authors:
  • Sujit Kumar Chakrabarti;Y. N. Srikant

  • Affiliations:
  • Indian Institute of Science, Bangalore, India;Indian Institute of Science, Bangalore, India

  • Venue:
  • ISEC '08 Proceedings of the 1st India software engineering conference
  • Year:
  • 2008

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Abstract

In the regression testing of reactive systems, a sequence of events, called the test sequence, is sent to it, and the system's behaviour is observed. The basic test sequence computation problem is equivalent to the rural postman problem, an NP-complete problem. We present PathFinder, a heuristic branch and bound algorithm, parameterised with a lookahead value k, to compute good test sequences from the state space graph of an API library. We also present a modified test sequence computation problem, and a modified version of PathFinder to solve it. We present the results of our experiments. These results provide insights to the tester on the choice of the best lookahead value for regression test sequence computation