28 May '14, 10pm

Do the right thing. Be evil.

In the fourth “Is TDD Dead?” debate, DHH, Martin Fowler, and Kent Beck discuss the cost of tests. DHH points out that well written tests don’t have to change when you’re refactoring – but he finds that he spends far more time changing behavior, not refactoring code, which, of course, necessitates changes to the tests. He states: “I want the system to do something else than what it’s currently doing. Sometimes that’s adding new behavior, but a lot of the time that’s also changing existing behavior. If I have to change four lines of test code for every line of production code, then there’s something not right there.” DHH makes a great point. We all have to consider the cost of change. Lots of things could change in a system: the behaviors specified by the product owner, the database technologies dicatated by your IT departments, the user interfaces needed by your users, even...

Full article: http://pivotallabs.com/evil/

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