Automatically recognize which mutants killed by which test cases in Pitest

Question

I am using Pitest for mutation testing and I need lots of mutants for a project (for example 500 mutants). I need a matrix which shows which mutants that the Pitest has created, killed by which test cases. I can do it manually, but it takes a long time.

Is it possible to do it automatically? if Yes how, if no what is my choices for a solution?

Does this help? https://dzone.com/articles/how-do-you-test-your-tests-%E2%80%93 — Aakash Verma, Jul 01 '17 at 20:16
@Mohammad Reza Dehghani Tafti, Wherther fullMutationMatrix parameter can show the mutant matrix for each test case against each mutant? https://github.com/hcoles/pitest/issues/571 (to moderator, I can't add it as a comment with 1 reputation) — echo, May 08 '19 at 02:36

score 4 · Accepted Answer · answered Jul 02 '17 at 21:40

Pitest does not generate a mutant test matrix out of the box, it stops analysing each mutant as soon as a killing test is found.

Your options are to either write a script that execute it multiple times limiting it to considering a single test on each run, or to modify the code so that it no longer stops when each mutant is killed and somehow outputs the mutants killed by each test.

score 0 · Answer 2 · answered Sep 29 '20 at 13:20

0

Pitest supports the computation of a full mutation matrix since version 1.4.3. The feature has not been documented yet, but a brief description can be found here: https://github.com/hcoles/pitest/issues/510#issuecomment-465899299

answered Sep 29 '20 at 13:20

nrainer

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Automatically recognize which mutants killed by which test cases in Pitest

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