graphql-spice/tests/Language/GraphQL/ClassSpec.hs
2022-09-08 19:53:22 +02:00

48 lines
1.6 KiB
Haskell

{- This Source Code Form is subject to the terms of the Mozilla Public License,
v. 2.0. If a copy of the MPL was not distributed with this file, You can
obtain one at https://mozilla.org/MPL/2.0/. -}
{-# LANGUAGE OverloadedStrings #-}
module Language.GraphQL.ClassSpec
( spec
) where
import Data.Text (Text)
import qualified Language.GraphQL.Type as Type
import Language.GraphQL.Class (FromGraphQL(..), ToGraphQL(..))
import Test.Hspec (Spec, describe, it, shouldBe)
spec :: Spec
spec = do
describe "ToGraphQL" $ do
it "converts integers" $
toGraphQL (5 :: Int) `shouldBe` Type.Int 5
it "converts text" $
toGraphQL ("String" :: Text) `shouldBe` Type.String "String"
it "converts booleans" $
toGraphQL True `shouldBe` Type.Boolean True
it "converts Nothing to Null" $
toGraphQL (Nothing :: Maybe Int) `shouldBe` Type.Null
it "converts singleton lists" $
toGraphQL [True] `shouldBe` Type.List [Type.Boolean True]
describe "FromGraphQL" $ do
it "converts integers" $
fromGraphQL (Type.Int 5) `shouldBe` Just (5 :: Int)
it "converts text" $
fromGraphQL (Type.String "String") `shouldBe` Just ("String" :: Text)
it "converts booleans" $
fromGraphQL (Type.Boolean True) `shouldBe` Just True
it "converts Null to Nothing" $
fromGraphQL Type.Null `shouldBe` Just (Nothing :: Maybe Int)
it "converts singleton lists" $
fromGraphQL (Type.List [Type.Boolean True]) `shouldBe` Just [True]