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Off-Line Test Selection with Test Purposes for Non-deterministic Timed Automata

2011; Springer Science+Business Media; Linguagem: Inglês

10.1007/978-3-642-19835-9_10

ISSN

1611-3349

Autores

Nathalie Bertrand, Thierry Jéron, Amélie Staïner, Moez Krichen,

Tópico(s)

Software Reliability and Analysis Research

Resumo

This paper proposes novel off-line test generation techniques for non-deterministic timed automata with inputs and outputs (TAIOs) in the formal framework of the tioco, conformance theory. In this context, a first problem is the determinization of TAIOs, which is necessary to foresee next enabled actions, but is in general impossible. This problem is solved here thanks to an approximate determinization using a game approach, which preserves tioco, and guarantees the soundness of generated test cases. A second problem is test selection for which a precise description of timed behaviors to be tested is carried out by expressive test purposes modeled by a generalization of TAIOs. Finally, using a symbolic co-reachability analysis guided by the test purpose, test cases are generated in the form of TAIOs equipped with verdicts.

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