claude

qa-mutation-testing

Mutation testing with StrykerJS, Stryker.NET, PIT, mutmut and Mull: one canonical tool per language, plus triage of surviving mutants. Survivor triage classifies why each mutant lived (missing case, weak assertion, equivalent mutant) and drafts the tests that kill it.

13 on GitHubby testlandv1.3.5MITupdated yesterdayfunctional-testing
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Plugin qa-mutation-testing from marketplace testland-qa in testland/qa. Commands read from the repo's manifest — today.

What it installs

Skills (6)

  • mull-mutation

    Use for any question about mutation testing in C or C++, or when a C/C++ suite has high coverage but bugs still ship: sets up Mull for Clang builds (version-matched package, -fpass-plugin flags, CMake, mull-runner, mutators, path filters) and runs it in GitHub Actions. Other languages: stryker-mutat

  • mutant-survival-triage

    Use when a mutation testing run (StrykerJS, PIT, mutmut or Mull) has surviving mutants, a low mutation score, or a large report to work through: classifies each survivor (missing case, weak assertion, equivalent, unreachable, flaky), drafts the test or assertion that kills it, and states the mutatio

  • mutmut-mutation

    Use when a Python pytest or unittest suite needs mutation testing to show whether the tests catch bugs. Sets up mutmut: mutmut run, results and browse, applying survivors, pragma: no mutate suppressions and pyproject.toml config.

  • pitest-mutation

    Use for any question about mutation testing in Java or Kotlin, or when a JVM suite has high line coverage but may assert nothing: sets up PIT (PITest) with Maven or Gradle, target classes, mutators, mutation-score thresholds that fail the build, incremental runs, Kotlin support and the HTML and XML

  • stryker-mutation

    Use when a JavaScript or TypeScript suite has high coverage but bugs still slip through, and the team wants mutation testing to find weak tests. Sets up StrykerJS: the Jest, Vitest, Mocha or Karma runner, stryker.conf.json, thresholds and incremental runs on pull requests.

  • stryker-net-mutation

    Use for any question about mutation testing in .NET or C#, or when a .NET suite passes with good coverage but may assert nothing: sets up Stryker.NET (dotnet-stryker tool, project and solution scoping, xUnit, NUnit or MSTest, stryker-config.json thresholds) and runs it in CI. Has a worked example an

View source on GitHub testland.io

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