Mutant
6.7#3 in mutation testing toolsFrom $250 a yearFree planLinuxmacOS
VisitMutant vs Mutatest
What both publish
| Fact | Mutant | Mutatest |
|---|---|---|
| Mutation operators | Mutant mutates arithmetic, logical and bitwise operators, removes statements, and modifies return values. | Supported operators include arithmetic, bitwise, Boolean, comparison, membership, identity, conditional and index mutations. |
| Purpose | Mutant is mutation testing for Ruby that systematically modifies code and verifies that tests catch each change. | Mutatest is a diagnostic command-line tool for assessing test coverage by checking whether tests detect small code mutations. |
Mutant plans
- Open sourceFree
- Commercial monthly$30 a month
- Commercial yearly$250 a year
- EnterprisePriced on request
Mutatest plans
- MutatestFree
Pick Mutant if…
Mutant suits Ruby developers who want to check whether their tests detect code changes, including teams using the listed test frameworks or supported Rails versions. Its open-source plan is for public repositories; commercial use requires a per-developer subscription.
Pick Mutatest if…
Mutatest suits Python developers who want to check whether their tests detect code changes, especially when they need mutation thresholds in automated runs. It is intended for diagnostic use rather than repeated runs across an entire codebase on every commit.