[Haskell-cafe] Need advise with using Quickcheck

Henning Thielemann lemming at henning-thielemann.de
Sat Jun 12 11:27:57 UTC 2021

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. 


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