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|
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE QuasiQuotes #-}
module Test.FragmentSpec
( spec
) where
import Data.Aeson (object, (.=))
import Data.List.NonEmpty (NonEmpty(..))
import Data.Text (Text)
import Language.GraphQL
import qualified Language.GraphQL.Schema as Schema
import Test.Hspec (Spec, describe, it, shouldBe)
import Text.RawString.QQ (r)
size :: Schema.Resolver IO
size = Schema.scalar "size" $ return ("L" :: Text)
circumference :: Schema.Resolver IO
circumference = Schema.scalar "circumference" $ return (60 :: Int)
garment :: Text -> Schema.Resolver IO
garment typeName = Schema.object "garment" $ return
[ if typeName == "Hat" then circumference else size
, Schema.scalar "__typename" $ return typeName
]
inlineQuery :: Text
inlineQuery = [r|{
garment {
... on Hat {
circumference
}
... on Shirt {
size
}
}
}|]
spec :: Spec
spec = describe "Inline fragment executor" $ do
it "chooses the first selection if the type matches" $ do
actual <- graphql (garment "Hat" :| []) inlineQuery
let expected = object
[ "data" .= object
[ "garment" .= object
[ "circumference" .= (60 :: Int)
]
]
]
in actual `shouldBe` expected
it "chooses the last selection if the type matches" $ do
actual <- graphql (garment "Shirt" :| []) inlineQuery
let expected = object
[ "data" .= object
[ "garment" .= object
[ "size" .= ("L" :: Text)
]
]
]
in actual `shouldBe` expected
|
