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Programming with "Duh" Typing

370 replies on 371 pages. Most recent reply: Aug 8, 2007 9:54 AM by James Watson

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Petrik de Heus

Posts: 19
Nickname: p8
Registered: Jul, 2007

Re: Programming with "Duh" Typing Posted: Jul 27, 2007 11:11 AM
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> > When we say "correct" I think we're saying that the
> > program corresponds to the spec as defined by our tests
> -
> > in this case "correct" is defined by our single test T.
>
> This is off-topic, but I find the idea of consider unit
> tests to be a specification to be one of the most
> ridiculus propositions I've ever heard.

Users of the popular next generation BDD frameworks like rSpec probably disagree.
http://rspec.rubyforge.org/

While I haven't used rSpec (but will on my next project) I like the whole idea thinking of tests as specifications.
Because tests describe if the software is correct based on possible scenario's.
If you have a spec that isn't tested you can't be sure the software is correct for that spec.
If you have untested code you cannot be sure it's doing what's specified.

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