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Should you test Null Objects?

(Jurre) #1

Usually when extracting Null Objects they turn out to be very basic objects with methods that return a single value, is it worth testing these separately, or is it enough to just test the object that you extracted it from still behaves the same way?

(Aaron Mc Adam) #2

If your existing tests cover the behaviour, I would leave the extracted class as an implementation detail with no direct tests.