Comparison

record in io.mutastic.api

record Comparison(
    OptionalDouble previousScore,
    boolean sameCode,
    boolean sameTool,
    List<Comparison.Flip> flips)

This run against the last one.

With the code and mutastic unchanged, a mutant is caught or missed the same way every time unless a test behaves differently between runs. So a mutant that was caught last run and is missed now, or the other way round, points at the test that caught it: likely flaky. With either changed, a flip is just the change at work.

Components

previousScore	the last run’s score; none when it had no mutants to score
sameCode	whether the code and tests are byte for byte what the last run had
sameTool	whether the same mutastic ran
flips	mutants caught in one run and not the other

Methods

sameness

String sameness()

same code, code changed or mutastic changed: what explains a difference.

likelyFlaky

Map<String, List<String>> likelyFlaky()

Each likely flaky test and the mutants whose results it changed: empty unless the code and mutastic are the same.