[Haskell-cafe] Quickcheck for common typeclass laws

[Job Vranish]

Is there a hackage package that contains quickcheck properties for the laws
of common typeclasses?
(Functor, Monad, Num, Ord, Eq, Applicative, etc...)
so that one could quickly check (har har) that their new instances satisfy
the appropriate laws?

It would be very nice to have a
isValidMonad (undefined :: MyNewMonadType)
function.

If one does not exist, I may just have to make one.

- Job
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