PIT vs pytest-gremlins

PIT

5.8 #9 in Mutation Testing Tools

About PIT

pytest-gremlins

5.4 #13 in Mutation Testing Tools

About pytest-gremlins
PITpytest-gremlins
Free planNoNo
Free trialNoNo
Paid from——
Open sourceNoNo
PlatformsLinux, macOS, self-hosted, Windows—
Free planYes—
Supported languagesJava and JVM bytecodePython
Test frameworksJUnit 3, JUnit 4, TestNG; JUnit 5 via pluginpytest
Incremental analysisYesYes
Parallel executionYesYes
Surviving mutant reportsYesYes
Mutation quality gateYesYes
Mutation operatorsConditionals Boundary, Increments, Invert Negatives, Math, Negate Conditionals, Void Method Calls, Empty Returns, False Returns, True Returns, Null Returns, Primitive Returns, Remove Conditionals, Inline Constant, Constructor Calls, Non-Void Method Calls, Remove Increments, Argument Propagation, Big Integer, Member Variable, Naked Receiver, Negation, Arithmetic Operator Replacement, Arithmetic Opecomparison, boundary, boolean, arithmetic, return

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