Marcin Zajączkowski -  Mutation testing: how good your tests really are?
Channel: RedHatCzech
Date: 2014-02-20

Standard code coverage analysis provides insight into execution paths exercised by a testing scheme. Mutation testing takes this notion a step further and offers a deep down investigation (through code modification or removal) of the impact each line of production code makes on the whole test. This approach has been known for over 30 years circling mainly within academic communities and only recently has it been rediscovered and introduced to the benefit of commercial solutions. Mutation testing technique which focuses on partitioning the code on per line basis with regards to influence on the logic put under test provides actual (as opposed to artificial and synthetic) view on tests quality.

Slides: http://devconf.cz/filebrowser/download/384