mirror of
https://github.com/github/semantic.git
synced 2024-12-19 12:51:52 +03:00
88 lines
3.1 KiB
Haskell
88 lines
3.1 KiB
Haskell
module Data.Functor.Classes.Generic.Spec (spec) where
|
|
|
|
import Data.Functor.Classes.Generic
|
|
import Data.Functor.Listable
|
|
import GHC.Generics
|
|
import Test.Hspec
|
|
import Test.Hspec.LeanCheck
|
|
|
|
spec :: Spec
|
|
spec = do
|
|
describe "Eq1" $ do
|
|
describe "genericLiftEq" $ do
|
|
prop "equivalent to derived (==) for product types" $
|
|
\ a b -> genericLiftEq (==) a b `shouldBe` a == (b :: Product Int)
|
|
|
|
prop "equivalent to derived (==) for sum types" $
|
|
\ a b -> genericLiftEq (==) a b `shouldBe` a == (b :: Sum Int)
|
|
|
|
prop "equivalent to derived (==) for recursive types" $
|
|
\ a b -> genericLiftEq (==) a b `shouldBe` a == (b :: Tree Int)
|
|
|
|
describe "Ord1" $ do
|
|
describe "genericLiftCompare" $ do
|
|
prop "equivalent to derived compare for product types" $
|
|
\ a b -> genericLiftCompare compare a b `shouldBe` compare a (b :: Product Int)
|
|
|
|
prop "equivalent to derived compare for sum types" $
|
|
\ a b -> genericLiftCompare compare a b `shouldBe` compare a (b :: Sum Int)
|
|
|
|
prop "equivalent to derived compare for recursive types" $
|
|
\ a b -> genericLiftCompare compare a b `shouldBe` compare a (b :: Tree Int)
|
|
|
|
describe "Show1" $ do
|
|
describe "genericLiftShowsPrec" $ do
|
|
prop "equivalent to derived showsPrec for product types" $
|
|
\ a -> genericLiftShowsPrec showsPrec showList 0 a "" `shouldBe` showsPrec 0 (a :: Product Int) ""
|
|
|
|
prop "equivalent to derived showsPrec for sum types" $
|
|
\ a -> genericLiftShowsPrec showsPrec showList 0 a "" `shouldBe` showsPrec 0 (a :: Sum Int) ""
|
|
|
|
prop "equivalent to derived showsPrec for recursive types" $
|
|
\ a -> genericLiftShowsPrec showsPrec showList 0 a "" `shouldBe` showsPrec 0 (a :: Tree Int) ""
|
|
|
|
prop "equivalent to derived showsPrec for record selectors" $
|
|
\ a -> genericLiftShowsPrecWithOptions defaultGShow1Options { optionsUseRecordSyntax = True } showsPrec showList 0 a "" `shouldBe` showsPrec 0 (a :: Record Int) ""
|
|
|
|
prop "equivalent to derived showsPrec for infix constructors" $
|
|
\ a -> genericLiftShowsPrec showsPrec showList 0 a "" `shouldBe` showsPrec 0 (a :: Infix Int) ""
|
|
|
|
|
|
data Product a = Product a a a
|
|
deriving (Eq, Generic1, Ord, Show)
|
|
|
|
instance Listable a => Listable (Product a) where
|
|
tiers = cons3 Product
|
|
|
|
|
|
data Sum a = Sum1 a | Sum2 a | Sum3 a
|
|
deriving (Eq, Generic1, Ord, Show)
|
|
|
|
instance Listable a => Listable (Sum a) where
|
|
tiers = cons1 Sum1 \/ cons1 Sum2 \/ cons1 Sum3
|
|
|
|
|
|
data Tree a = Leaf a | Branch [Tree a]
|
|
deriving (Eq, Generic1, Ord, Show)
|
|
|
|
instance Listable a => Listable (Tree a) where
|
|
tiers = cons1 Leaf \/ cons1 Branch
|
|
|
|
instance Eq1 Tree where liftEq = genericLiftEq
|
|
instance Ord1 Tree where liftCompare = genericLiftCompare
|
|
instance Show1 Tree where liftShowsPrec = genericLiftShowsPrec
|
|
|
|
|
|
data Record a = Record { recordSelector1 :: a, recordSelector2 :: a, recordSelector3 :: a }
|
|
deriving (Eq, Generic1, Ord, Show)
|
|
|
|
instance Listable a => Listable (Record a) where
|
|
tiers = cons3 Record
|
|
|
|
|
|
data Infix a = a :<>: a
|
|
deriving (Eq, Generic1, Ord, Show)
|
|
|
|
instance Listable a => Listable (Infix a) where
|
|
tiers = cons2 (:<>:)
|