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Ruby User Group Cologne

A deeper look on mutation testing with mutant

this Topic will be presented by Markus Schirp

at November Meetup 2013, hosted by Jakob Hilden


Why / when and how a mutation testing tool can improve your development skills.


Mutant is a mutation tester. It modifies your code and runs your tests to make sure they fail. The idea is that if code can be changed and your tests don’t notice, either that code isn’t being covered or it doesn’t do anything.

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