Mutation-Driven Generation of Unit Tests and Oracles

Gordon Fraser, Andreas Zeller
2012 IEEE Transactions on Software Engineering  
To assess the quality of test suites, mutation analysis seeds artificial defects (mutations) into programs; a nondetected mutation indicates a weakness in the test suite. We present an automated approach to generate unit tests that detect these mutations for object-oriented classes. This has two advantages: First, the resulting test suite is optimized towards finding defects modeled by mutation operators rather than covering code. Second, the state change caused by mutations induces oracles
more » ... precisely detect the mutants. Evaluated on 10 open source libraries, our µTEST prototype generates test suites that find significantly more seeded defects than the original manually written test suites.
doi:10.1109/tse.2011.93 fatcat:sicmcdoi7zetbpr2llsgs7r5te