[Haskell-cafe] HSpec vs Doctest for TDD

[Darren Grant]

Great share thank you! There is incredible motivation for typed calculus
here: Where there are formal properties a proof may be pursued to build
reliable abstractions.

Where and how such methods are applied must still remain the purview of
thoughtful design.

Cheers,
Darren
 On Jun 25, 2014 8:25 AM, "Francesco Ariis" <fa-ml at ariis.it> wrote:

> On Wed, Jun 25, 2014 at 02:45:37PM +0200, Mateusz Kowalczyk wrote:
> > While I disagree with initial view that testing is useless, I certainly
> > disagree with this approach too. There are plenty proof-assistants using
> > type-checking to prove programs correct. That's not to say Haskell
> > itself is suited for such task. If you have a type system strong enough,
> > classical tests are no longer required because you can encode all the
> > properties you need in types proving at compile time that your program
> > is in fact correct.
> >
>
> For non-believers, here is a blog post that opened my eyes on the matter
> [1].
>
> [1] http://lambda.jstolarek.com/2013/12/data-is-evidence/
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