Mutation testing for Python
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"Four human beings -- changed by space-born cosmic rays into something more than merely human." — The Fantastic Four
Cosmic Ray is a mutation testing tool for Python 3.
It makes small changes to your source code, running your test suite for each one. Here's how the mutations look:
.. image:: docs/source/cr-in-action.gif
The easiest way to contribute is to use Cosmic Ray and submit reports for defects or any other issues you come across. Please see CONTRIBUTING.rst for more details.
.. |Python version| image:: https://img.shields.io/badge/Pythonversion-3.5+-blue.svg :target: https://www.python.org/ .. |Build Status| image:: https://travis-ci.org/sixty-north/cosmic-ray.svg?branch=master :target: https://travis-ci.org/sixty-north/cosmic-ray .. |Code Health| image:: https://landscape.io/github/sixty-north/cosmic-ray/master/landscape.svg?style=flat :target: https://landscape.io/github/sixty-north/cosmic-ray/master .. |Code Coverage| image:: https://codecov.io/gh/sixty-north/cosmic-ray/branch/master/graph/badge.svg :target: https://codecov.io/gh/Vimjas/covimerage/branch/master .. |Documentation| image:: https://readthedocs.org/projects/cosmic-ray/badge/?version=latest :target: http://cosmic-ray.readthedocs.org/en/latest/ .. |fulldocumentation| replace:: Read the full documentation at readthedocs. .. fulldocumentation: http://cosmic-ray.readthedocs.org/en/latest/