PUMA
Istituto di Scienza e Tecnologie dell'Informazione     
Fantechi A., Gnesi S., Maggiore A. Enhancing test coverage by back-tracing model-checker counterexamples. In: TACoS, International Workshop onTest and Analysis of Component Based (Barcelona, Spain, March 27-28, 2004). Proceedings, vol. Electronic Notes in Computer Science Series 116 pp. Pages 199 - 211. M. Pezzé (ed.). Elsevier, 2005.
 
 
Abstract
(English)
The automatic detection of unreachable coverage goals and generation of tests for 'corner-case' scenarios is crucial to make testing and simulation based veri.cation more e.ective. In this paper we address the problem of coverability analysis and test case generation in modular and component based systems. We propose a technique that, given an uncovered branch in a component, either establishes that the branch cannot be covered or produces a test case at the system level which covers the branch. The technique is based on the use of counterexamples returned by model checkers, and exploits compositionality to cope with large state spaces typical of real applications.
Subject Coverability analysis
Testing
Modular
Component-based system
Compositionality
D.2.4 Software/Program Verification


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