HORIZON HASKELLDocslts/ghc-9.10.xc74966e2026-09-27Search names, modules, packages, or :: a typeCtrl K

GHC 9.10.3 · lts/ghc-9.10.x · c74966e · 2026-09-27

Modulegenvalidity-hspec-1.0.0.4Haskell2010

Test.Validity.Show

Show and Read properties

  • 6 values
valueshowReadSpecOnGen
  1. :: (Show a, Eq a, Read a, Typeable a)
  2. => Gen a
  3. -> String
  4. -> a -> [a]
  5. -> Spec
#

Standard test spec for properties of Show and Read instances for values generated by a custom generator

Example usage:

showReadSpecOnGen ((* 2) <$> genValid @Int) "even" (const [])