Tech riderRev. 20 Sept 2026
- 1Runs onNot stated by the maker
- 2CostsNot stated by the maker
- 3Supported languagesR
- 4Test frameworkstestthat; tinytest; generic installed-tests fallback
- 5Parallel executionYes
- 6Surviving mutant reportsYes
- 7Mutation quality gateYes
- 8Mutation operatorsArithmetic (+/- and */), comparison (==/!=, </>, <=/>=), logical (&/|, &&/||, ! and condition negation), assignment and call values, scalar constants, return values, statement deletion
6 lines stated Written from the maker's own pages: pdonatbouillud.com

Overview
mutator is ranked #16 of 25 in mutation testing tools on Specifiction.
Compared on mutation testing tools
- Free plan
- Yespdonatbouillud.com
- Supported languages
- Rpdonatbouillud.com
- Test frameworks
- testthat; tinytest; generic installed-tests fallbackpdonatbouillud.com
- Parallel execution
- Yespdonatbouillud.com
- Surviving mutant reports
- Yespdonatbouillud.com
- Mutation quality gate
- Yespdonatbouillud.com
- Mutation operators
- Arithmetic (+/- and */), comparison (==/!=, </>, <=/>=), logical (&/|, &&/||, ! and condition negation), assignment and call values, scalar constants, return values, statement deletionpdonatbouillud.com
Best mutator alternatives
See all 20Where it ranks on Specifiction
- Best Mutation Testing Tools in 2026#16 of 25
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