MFPS '92 Selected papers of the meeting on Mathematical foundations of programming semantics
The B-book: assigning programs to meanings
The B-book: assigning programs to meanings
Software unit test coverage and adequacy
ACM Computing Surveys (CSUR)
Program development by stepwise refinement
Communications of the ACM
Refinement of actions and equivalence notions for concurrent systems
Acta Informatica
Proceedings of the 8th European software engineering conference held jointly with 9th ACM SIGSOFT international symposium on Foundations of software engineering
Testing Refinements by Refining Tests
ZUM '98 Proceedings of the 11th International Conference of Z Users on The Z Formal Specification Notation
Alternating Refinement Relations
CONCUR '98 Proceedings of the 9th International Conference on Concurrency Theory
A new approach to program testing
Proceedings of the international conference on Reliable software
A classification of symbolic transition systems
ACM Transactions on Computational Logic (TOCL)
Proceedings of the 10th European software engineering conference held jointly with 13th ACM SIGSOFT international symposium on Foundations of software engineering
A System to Generate Test Data and Symbolically Execute Programs
IEEE Transactions on Software Engineering
Symbolic execution techniques for test purpose definition
TestCom'06 Proceedings of the 18th IFIP TC6/WG6.1 international conference on Testing of Communicating Systems
Symbolic test selection based on approximate analysis
TACAS'05 Proceedings of the 11th international conference on Tools and Algorithms for the Construction and Analysis of Systems
Test generation based on symbolic specifications
FATES'04 Proceedings of the 4th international conference on Formal Approaches to Software Testing
Action refinement in conformance testing
TestCom'05 Proceedings of the 17th IFIP TC6/WG 6.1 international conference on Testing of Communicating Systems
A symbolic framework for model-based testing
FATES'06/RV'06 Proceedings of the First combined international conference on Formal Approaches to Software Testing and Runtime Verification
Test Purpose Concretization through Symbolic Action Refinement
TestCom '08 / FATES '08 Proceedings of the 20th IFIP TC 6/WG 6.1 international conference on Testing of Software and Communicating Systems: 8th International Workshop
Symbolic Execution Based Model Checking of Open Systems with Unbounded Variables
TAP '09 Proceedings of the 3rd International Conference on Tests and Proofs
Computer Networks: The International Journal of Computer and Telecommunications Networking
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We propose an approach to test whether an abstract specification is refined or not by a more concrete one. The specifications are input/output symbolic transition systems (IOSTS). The refinement relation requires that all traces of the abstract system are also traces of the concrete system, up to some signature inclusion. Our work takes inspiration from the conformance testing area. Symbolic execution techniques allow us to select traces of the abstract system and to submit them on the concrete specification. Each trace execution leads to a verdict Fail, Pass or Warning. The verdict Pass is provided with a formula which has to be verified by the values only manipulated at the level of the concrete specification in order to ensure the refinement relation. The verdict Warning reports that the concrete specification has not been sufficiently explored to give a reliable verdict. This is thus a partial verification process, related to the quality of the set of selected traces and of the exploration of the concrete specification. Our approach has been implemented and is demonstrated on a simple example.