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This paper adresses the generation of test cases for testing the conformance of a black-box implementation with respect to its speci cation, in the context of reactive systems. We aim at extending the principles and algorithms of model-based testing a la ioco for recursive speci cations that can be modeled by Push-Down Systems (PDS). Such speci cations may be more compact than non-recursive ones and are more expressive. The generated test cases are selected according to a test purpose, a (set of) scenario of interest that one wants to observe during test execution. The test generation method we propose in this paper is based on program transformations and a coreachability analysis, which allows to decide whether and how the test purpose can still be satis ed. However, despite the possibility to perform an exact analysis, the inability of test cases to inspect their own stack prevents it from using fully the coreachability information. We discuss this partial observation problem, its consequences, and how to minimize its impact.
Camille Constant
camille.constant@irisa.fr
Bertrand Jeannet
Bertrand.Jeannet@irisa.fr
Thierry Jéron
Thierry.Jeron@irisa.fr
@TechReport{PI-Constant07a,
Author = {Constant, C. and Jeannet, B. and Jéron, T.},
Title = {Automatic Test Generation from Interprocedural Specifications},
Number = {1835},
Institution = {IRISA},
Month = {March},
Year = {2007}
}
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