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Project Description

This package provides a byte-code based mutation analysis framework for Python. It computes the mutation score (The quality score) of your doctests. Bytecode based mutation analysis ensures that invalid mutants are completely avoided (unlike source code based mutants), and also that trivial redundant and equivalent mutants (that can be distinguished by compiler) are already removed. It uses coverage analysis to ensure that only covered mutants that have a chance to be detected are run. It also includes randomized evaluation of equivalent mutants (use -a to set the number of attempts to be made).


It was tested on Python 2.7

To run

python -a <attempts> <module to be tested>

Mutation Operators (on bytecode)

  • modify constants
  • replace boolean comparators (< <= == != > >=)
  • replace arithmetic operators (+ - * / // ./. ** % << >> ^)
  • remove unary negation and invert
  • invert unary signs
  • swap ‘and’ and ‘or’ in boolean expressions
  • swap inplace ‘and’ and ‘or’ in assignments
  • swap ‘jump if * or pop’ and ‘jump if * and pop’
  • swap ‘pop if true’ and ‘pop if false’
Release History

Release History


This version

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
xmutant-0.1.tar.gz (756 Bytes) Copy SHA256 Checksum SHA256 Source Mar 30, 2015

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