[Haskell-cafe] QuickCheck-like tests with GHC.Generic deriving

lucas di cioccio lucas.dicioccio at gmail.com
Wed Nov 20 07:21:36 UTC 2013


I have seen that SmallCheck's Serial class has Generic defaults, but it
> isn't particularly good for my purpose (I'd like to use the generator to
> populate deeply nested data types, and SmallCheck's generator requires
> computing a few million values before I get any interesting ones)
>  Something "random" would be more useful for my purpose.

Maybe you can make your data instances of Random





> I know that the plan depends on my vaguely abusing the test-case
> generator, but I plan on doing some testing anyway, so I figured I should
> reuse the instance.
> That said, I'd be willing to use any random value type class with
> Generic-default instances.
> Does anybody have any suggestions?
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