{-# LANGUAGE AllowAmbiguousTypes #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE ScopedTypeVariables #-}

-- | Tests for GenValidity instances
module Test.Validity.GenValidity.Property
  ( genGeneratesValid,
    genGeneratesInvalid,
  )
where

import Data.GenValidity
import Test.QuickCheck
import Test.Validity.Property.Utils

-- | The given generator generates only valid data points
genGeneratesValid ::
  forall a.
  (Show a, Validity a) =>
  Gen a ->
  Property
genGeneratesValid :: Gen a -> Property
genGeneratesValid Gen a
gen = Gen a -> (a -> Expectation) -> Property
forall a prop.
(Show a, Testable prop) =>
Gen a -> (a -> prop) -> Property
forAll Gen a
gen a -> Expectation
forall a. (Show a, Validity a) => a -> Expectation
shouldBeValid

-- | The given generator generates only invalid data points
genGeneratesInvalid ::
  forall a.
  (Show a, Validity a) =>
  Gen a ->
  Property
genGeneratesInvalid :: Gen a -> Property
genGeneratesInvalid Gen a
gen = Gen a -> (a -> Expectation) -> Property
forall a prop.
(Show a, Testable prop) =>
Gen a -> (a -> prop) -> Property
forAll Gen a
gen a -> Expectation
forall a. (Show a, Validity a) => a -> Expectation
shouldBeInvalid