[Haskell-cafe] Need advise with using Quickcheck

[Han Joosten]

Thanks all for the responses. I managed to put them all together and I [got
it all to work](
https://github.com/AmpersandTarski/Ampersand/blob/cefbc08ad8fb3152ce1a55dce5f6334cfc732d46/src/Ampersand/Test/Parser/QuickChecks.hs
).

Cheers,
Han.

Op za 12 jun. 2021 om 13:28 schreef Henning Thielemann <
lemming at henning-thielemann.de>:

>
> On Sat, 12 Jun 2021, Han Joosten wrote:
>
> > Thanks for this respons, Rubén. I might not have explained what I am
> looking for very well. I already have
> > instance Arbitrary Foo
> > That is not the problem. The problem is, that when a counterexample is
> found, it is dumped to the output with the `show` function.
> > I would like to be able to use another function for that, say show'. In
> order to do so, I need to obtain the counterexample itself
> > in some way, so I can use it to generate a useful message after the
> tests are done.
>
>
> https://hackage.haskell.org/package/QuickCheck-2.14.2/docs/Test-QuickCheck.html#v:forAllShow
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.haskell.org/pipermail/haskell-cafe/attachments/20210612/d561acc6/attachment.html>