muttest vs pytest-gremlins

muttest

5.8 #8 in Mutation Testing Tools

About muttest

pytest-gremlins

5.4 #13 in Mutation Testing Tools

About pytest-gremlins
muttestpytest-gremlins
Free planNoNo
Free trialNoNo
Paid from——
Open sourceNoNo
PlatformsLinux, macOS, Windows—
Free planYes—
Supported languagesRPython
Test frameworkstestthat; cucumberpytest
Incremental analysisYesYes
Surviving mutant reportsYesYes
Mutation quality gateYesYes
Mutation operatorsBinary operators; arithmetic operators; comparison operators; logical operators; boolean literals; NA/NULL literals; numeric literals; string literals; condition negation; function-call names; index increments/decrements; explicit return valuescomparison, boundary, boolean, arithmetic, return
Parallel execution—Yes

Both are listed in Best Mutation Testing Tools. On Samsung Mobile US Press, muttest scores higher on our published basis.