The is actually already a specific word for code changes to behaviour that contrasts well with the structural change of refactoring: Transformations. The word

The is actually already a specific word for code changes to behaviour that contrasts well with the structural change of refactoring: Transformations. The word fits well in to TDD's red-green-refactor with the "Transformation Priority Premise". The premise goes as follows: as the tests get more specific, the code becomes more generic. https://en.wikipedia.org/wiki/Transformation_Priority_Premise https://en.wikipedia.org/wiki/Transformation_Priority_Premis...