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Discussion on: Death by Interfaces?

seankearon profile image

There is certainly a place for interfaces in any good design. However, I completely agree that they are overused and that we should think twice about whether we really need them when we add them.

Sure, this goes against "accepted wisdom" and does not sit well for a lot of people. But, it's good to question what we do and why we do it. Cargo cult driven development is a very easy habit to slip into!

In particular, I absolutely hate introducing an interface just to be able to write some unit tests for some component. I avoid doing that whenever possible.

I think I remember someone blogging or tweeting to say "every time I add an interface to my code I feel like I've failed". I might be wrong but I think was Paul Stovell aka Mr Octopus Deploy.

Thanks for a great article!