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Abstract : This paper studies the situation in which the system under test and the system model are distributed and have the same structure; they have corresponding remote components that communicate asynchronously. In testing, a component with interface $$C_i$$ has its own local tester that interacts with $$C_i$$ and this local tester observes a local trace consisting of inputs, outputs and durations as perceived by $$C_i$$. An observation made in testing is thus a multi-trace: a tuple of (timed) local traces, one for each $$C_i$$. The conformance relation for such distributed systems combines a classical unitary conformance relation for localised components and the requirement that the communication policy was satisfied. By expressing the communication policy as a constraint satisfaction problem, we were able to implement the computation of test verdicts by orchestrating localised off-line testing algorithms and the verification of constraints defined by message passing between components. Lastly, we illustrate our approach on a telecommunications system.
https://hal.inria.fr/hal-01678964 Contributor : Hal IfipConnect in order to contact the contributor Submitted on : Tuesday, January 9, 2018 - 3:40:06 PM Last modification on : Thursday, February 17, 2022 - 10:08:04 AM
Nassim Benharrat, Christophe Gaston, Robert M. Hierons, Arnault Lapitre, Pascale Le Gall. Constraint-Based Oracles for Timed Distributed Systems. 29th IFIP International Conference on Testing Software and Systems (ICTSS), Oct 2017, St. Petersburg, Russia. pp.276-292, ⟨10.1007/978-3-319-67549-7_17⟩. ⟨hal-01678964⟩