mutgate is an MIT-licensed Python package for named mutation testing in pytest suites. It treats mutations as contracts and checks that each mutation turns exactly its named tests red, supporting reproducible test-quality validation.
mutgate sits in PulseGate's Testing & QA category. It focuses on ensuring mutation tests fail the exact tests they are expected to break, improving test quality and reproducibility. It is built as an open-source project for python developers and scientific-software maintainers. The project is open source (MIT). It ships for the command line, and it can be self-hosted.
mutgate first shipped in 2026. Among its 5 catalogued features are named mutations, mutation contracts, and pytest integration.
Summary written by a language model from the project’s public pages.
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