Mutation testing trial#89
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nbarlowATI
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Jun 19, 2026
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Very interesting, and does sound like something we should run on as much of the codebase as feasible, at least once (and fix the resulting issues).
Hopefully as the codebase stabilises, we wouldn't break things as often, so we could just run it occasionally....
I agree with the strategy of testing it first on Starling though.
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This PR contains a short trial of mutation testing including:
This is a Draft PR and not intended to be merged. If successful this could result in two PRs, one to add mutmut.py as a package and initial config and another for the test_number.py and test_convert.py modules containing changes to kill mutants.
If there is interest I can provide a demo the tool in use.