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W. Hummer, O. Raz, O. Shehory, Ph. Leitner, S. Dustdar:
"Test Coverage of Data-Centric Dynamic Compositions in Service-Based Systems";
Talk: Fourth IEEE International Conference on Software Testing, Verification, and Validation (ICST 2011), Berlin, Germany; 2011-03-21 - 2011-03-25; in: "Proceedings of the Fourth IEEE International Conference on Software Testing, Verification, and Validation (ICST 2011)", IEEE, (2011), ISBN: 978-0-7695-4342-0; 40 - 49.

This paper addresses the problem of integration testing
of data-centric dynamic compositions in service-based systems.
These compositions define abstract services, which
are replaced by invocations to concrete candidate services
at runtime. Testing all possible runtime instances of a composition
is often unfeasible. We regard data dependencies
between services as potential points of failure, and introduce
the k-node data flow test coverage metric. Limiting
the level of desired coverage helps to significantly reduce
the search space of service combinations. We formulate the
problem of generating a minimum set of test cases as a combinatorial
optimization problem. Based on the formalization
we present a mapping of the problem to the data model
of FoCuS, a coverage analysis tool developed at IBM. Fo-
CuS can efficiently compute near-optimal solutions, which
we then use to automatically generate and execute test instances
of the composition. We evaluate our prototype implementation
using an illustrative scenario to show the endto-
end practicability of the approach.

http://dx.doi.org/10.1109/ICST.2011.55

Project Head Schahram Dustdar:
S-Cube