graphql/tests/Test/RootOperationSpec.hs

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{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE QuasiQuotes #-}
module Test.RootOperationSpec
( spec
) where
import Data.Aeson ((.=), object)
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import qualified Data.HashMap.Strict as HashMap
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import Language.GraphQL
import Test.Hspec (Spec, describe, it, shouldBe)
import Text.RawString.QQ (r)
import Language.GraphQL.Type.Definition
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import qualified Language.GraphQL.Type.Out as Out
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import Language.GraphQL.Type.Schema
hatType :: Out.ObjectType IO
hatType = Out.ObjectType "Hat" Nothing []
$ HashMap.singleton "circumference"
$ Out.Resolver (Out.Field Nothing (Out.NamedScalarType int) mempty)
$ pure $ Int 60
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schema :: Schema IO
schema = Schema
(Out.ObjectType "Query" Nothing [] hatField)
(Just $ Out.ObjectType "Mutation" Nothing [] incrementField)
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where
garment = pure $ Object $ HashMap.fromList
[ ("circumference", Int 60)
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]
incrementField = HashMap.singleton "incrementCircumference"
$ Out.Resolver (Out.Field Nothing (Out.NamedScalarType int) mempty)
$ pure $ Int 61
hatField = HashMap.singleton "garment"
$ Out.Resolver (Out.Field Nothing (Out.NamedObjectType hatType) mempty) garment
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spec :: Spec
spec =
describe "Root operation type" $ do
it "returns objects from the root resolvers" $ do
let querySource = [r|
{
garment {
circumference
}
}
|]
expected = object
[ "data" .= object
[ "garment" .= object
[ "circumference" .= (60 :: Int)
]
]
]
actual <- graphql schema querySource
actual `shouldBe` expected
it "chooses Mutation" $ do
let querySource = [r|
mutation {
incrementCircumference
}
|]
expected = object
[ "data" .= object
[ "incrementCircumference" .= (61 :: Int)
]
]
actual <- graphql schema querySource
actual `shouldBe` expected