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Erschienen in:
2010 | OriginalPaper | Buchkapitel
On-the-Fly Testing by Using an Executable TTCN-3 Markov Chain Usage Model
verfasst von : Winfried Dulz
Erschienen in: Evaluation of Novel Approaches to Software Engineering
Verlag: Springer Berlin Heidelberg
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The TestUS framework offers a range of techniques to obtain a TTCN-3 test suite starting from UML 2.0 requirement definitions. Use case diagrams that contain functional and non-functional requirements are first transformed to a Markov Chain usage model (MCUM). Probability annotations of MCUM state transitions enable the generation of TTCN-3 test cases that reflect the expected usage patterns of system users. Because compiling the associated TTCN-3 test suite can take quite a long time for a realistic SUT (System under Test) we decided to map the MCUM directly into the executable test suite without generating test cases in advance. Test cases and the evaluation of test verdicts are interpreted on-the-fly during executing the test suite. We proved the concept by testing an existing DECT communication system. The compilation time for deriving an executable TTCN-3 test suite was reduced to only 15 minutes and one can interpret as many test cases as one likes on-the-fly.