cargo-mutants vs Cosmic Ray
cargo-mutants
mutants.rsCosmic Ray
cosmic-ray.readthedocs.ioSide by side
| Figure | cargo-mutants | Cosmic Ray |
|---|---|---|
| Price from | — | — |
| Free plan | — | — |
| Free trial | — | — |
| Open source | — | — |
| Linux | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 0 | 0 |
| Spec score · Mutation Testing Tools | 7.5 (#12) | 7.5 (#13) |
| Purpose | cargo-mutants is a mutation testing tool for Rust that finds places where bugs could be inserted without causing tests to fail. | Cosmic Ray is a mutation testing tool for Python 3 that makes small changes to production code and runs the test suite against each change. |
| Test runners | Useful results require reliable, non-flaky tests that run under `cargo test` or `cargo nextest`. | The documentation shows test commands using `unittest` and says `pytest` and `nose` can stop after a failing test with the `-x` option. |
In their own words
cargo-mutants
cargo-mutants has no write-up on Specifiction yet; its figures are above.
Cosmic Ray
Cosmic Ray has no write-up on Specifiction yet; its figures are above.