cargo-mutants vs mutator
| cargo-mutants | mutator | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | — | — |
| Supported languages | Rust | R |
| Test frameworks | cargo test; cargo nextest | testthat; tinytest; generic installed-tests fallback |
| Incremental analysis | Yes | — |
| Parallel execution | Yes | Yes |
| Surviving mutant reports | Yes | Yes |
| Mutation quality gate | Yes | Yes |
| Mutation operators | Function-body value replacement; binary-operator replacement; unary-operator deletion; match-arm deletion; match-guard replacement; struct-literal field deletion | Arithmetic (+/- and */), comparison (==/!=, </>, <=/>=), logical (&/|, &&/||, ! and condition negation), assignment and call values, scalar constants, return values, statement deletion |
| Free plan | — | Yes |
Both are listed in Best Mutation Testing Tools. On Samsung Mobile US Press, cargo-mutants scores higher on our published basis.