Formal Methods and Testing: An Outcome of the FORTEST by Jan Tretmans (auth.), Robert M. Hierons, Jonathan P. Bowen,

By Jan Tretmans (auth.), Robert M. Hierons, Jonathan P. Bowen, Mark Harman (eds.)

This booklet constitutes the completely refereed and peer-reviewed consequence of the Formal tools and checking out (FORTEST) community - shaped as a community proven below united kingdom EPSRC investment that investigated the relationships among formal (and semi-formal) tools and software program trying out - now being an issue workforce of 2 BCS distinctive curiosity teams: Formal facets of Computing technology (BCS FACS) and distinct curiosity crew in software program trying out (BCS SIGIST).

Each of the 12 chapters during this booklet describes a manner during which the research of formal tools and software program trying out may be mixed in a way that brings the advantages of formal equipment (e.g., precision, readability, provability) with some great benefits of trying out (e.g., scalability, generality, applicability).

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Formal Methods and Testing: An Outcome of the FORTEST Network, Revised Selected Papers

This booklet constitutes the completely refereed and peer-reviewed final result of the Formal equipment and checking out (FORTEST) community - shaped as a community tested lower than united kingdom EPSRC investment that investigated the relationships among formal (and semi-formal) equipment and software program trying out - now being a topic crew of 2 BCS distinctive curiosity teams: Formal facets of Computing technological know-how (BCS FACS) and specified curiosity crew in software program trying out (BCS SIGIST).

Extra info for Formal Methods and Testing: An Outcome of the FORTEST Network, Revised Selected Papers

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5. For t41 we stop (choice 1): t41 := pass. After putting all pieces together, we obtain t1 of Figure 7 as a test case for p. Example 16. Test case t2 of Figure 7 can be generated from v in Figure 2: 1. Initially, S = v after = {v0 }. 2. but = {v0 , v1 }. 3. liq, δ}. choc; fail ✷ θ; t42 . 4. liq = {v0 }. choc; fail. 5. choc; fail ✷ θ; t72 . 6. The test case is stopped: t62 := pass and t72 := pass. 7. Further with t42 : this is the test case after quiescence has been observed; t42 is generated from S = {v0 , v1 } after δ = {v0 }.

5. i ≤iot s iff traces(i) ⊆ traces(s) and Qtraces(i) ⊆ Qtraces(s) Example 11. choc}. Intuitively, after pushing the button, we observe that nothing is produced by the machine, so we push the button again. Machine r1 may then produce either liquorice or chocolate, while machine r2 will always produce chocolate. When we use the relation ioconf, the observation always terminates after observing that nothing is produced; quiescence can only be an element of the out-set, but it cannot occur in the trace leading to the state where the out -set is calculated.

Mioco. The relation multi-ioco extends ioco with multiple channels [20]. Each action belongs to exactly one input channel or output channel. Each output channel can be quiescent, and moreover each input channel can be blocked meaning that the channel (temporarily) does not accept any inputs. Analogous to ioco, mioco requires that the outputs, output quiescences, and input blockings occurring in an implementation, are included in those of the specification. (r)tioco. Different(real)-timed-ioco relations have been defined: [21,22,23].

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