{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE ScopedTypeVariables #-}
module Test.Validity.Operations.Commutativity
( commutativeOnGens,
commutative,
commutativeOnArbitrary,
)
where
import Data.GenValidity
import Test.Hspec
import Test.QuickCheck
commutativeOnGens ::
(Show a, Show b, Eq b) =>
(a -> a -> b) ->
Gen (a, a) ->
((a, a) -> [(a, a)]) ->
Property
commutativeOnGens :: forall a b.
(Show a, Show b, Eq b) =>
(a -> a -> b) -> Gen (a, a) -> ((a, a) -> [(a, a)]) -> Property
commutativeOnGens a -> a -> b
op Gen (a, a)
gen (a, a) -> [(a, a)]
s =
Gen (a, a)
-> ((a, a) -> [(a, a)]) -> ((a, a) -> Expectation) -> Property
forall a prop.
(Show a, Testable prop) =>
Gen a -> (a -> [a]) -> (a -> prop) -> Property
forAllShrink Gen (a, a)
gen (a, a) -> [(a, a)]
s (((a, a) -> Expectation) -> Property)
-> ((a, a) -> Expectation) -> Property
forall a b. (a -> b) -> a -> b
$ \(a
a, a
b) -> (a
a a -> a -> b
`op` a
b) b -> b -> Expectation
forall a. (HasCallStack, Show a, Eq a) => a -> a -> Expectation
`shouldBe` (a
b a -> a -> b
`op` a
a)
commutative ::
(Show a, Show b, Eq b, GenValid a) =>
(a -> a -> b) ->
Property
commutative :: forall a b.
(Show a, Show b, Eq b, GenValid a) =>
(a -> a -> b) -> Property
commutative a -> a -> b
op = (a -> a -> b) -> Gen (a, a) -> ((a, a) -> [(a, a)]) -> Property
forall a b.
(Show a, Show b, Eq b) =>
(a -> a -> b) -> Gen (a, a) -> ((a, a) -> [(a, a)]) -> Property
commutativeOnGens a -> a -> b
op Gen (a, a)
forall a. GenValid a => Gen a
genValid (a, a) -> [(a, a)]
forall a. GenValid a => a -> [a]
shrinkValid
commutativeOnArbitrary ::
(Show a, Show b, Eq b, Arbitrary a) =>
(a -> a -> b) ->
Property
commutativeOnArbitrary :: forall a b.
(Show a, Show b, Eq b, Arbitrary a) =>
(a -> a -> b) -> Property
commutativeOnArbitrary a -> a -> b
op = (a -> a -> b) -> Gen (a, a) -> ((a, a) -> [(a, a)]) -> Property
forall a b.
(Show a, Show b, Eq b) =>
(a -> a -> b) -> Gen (a, a) -> ((a, a) -> [(a, a)]) -> Property
commutativeOnGens a -> a -> b
op Gen (a, a)
forall a. Arbitrary a => Gen a
arbitrary (a, a) -> [(a, a)]
forall a. Arbitrary a => a -> [a]
shrink