forked from OSS/graphql
Eugen Wissner
ae2210f659
This is experimental support. The implementation is based on conduit and is boring. There is a new resolver data constructor that should create a source event stream. The executor receives the events, pipes them through the normal execution and puts them into the response stream which is returned to the user. - Tests are missing. - The executor should check field value resolver on subscription types. - The graphql function should probably return (Either ResponseEventStream Response), but I'm not sure about this. It will make the usage more complicated if no subscriptions are involved, but with the current API implementing subscriptions is more difficult than it should be.
70 lines
2.2 KiB
Haskell
70 lines
2.2 KiB
Haskell
{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE QuasiQuotes #-}
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module Test.RootOperationSpec
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( spec
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) where
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import Data.Aeson ((.=), object)
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import qualified Data.HashMap.Strict as HashMap
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import Language.GraphQL
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import Test.Hspec (Spec, describe, it, shouldBe)
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import Text.RawString.QQ (r)
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import Language.GraphQL.Type
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import qualified Language.GraphQL.Type.Out as Out
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hatType :: Out.ObjectType IO
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hatType = Out.ObjectType "Hat" Nothing []
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$ HashMap.singleton "circumference"
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$ ValueResolver (Out.Field Nothing (Out.NamedScalarType int) mempty)
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$ pure $ Int 60
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schema :: Schema IO
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schema = Schema
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(Out.ObjectType "Query" Nothing [] hatFieldResolver)
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(Just $ Out.ObjectType "Mutation" Nothing [] incrementFieldResolver)
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where
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garment = pure $ Object $ HashMap.fromList
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[ ("circumference", Int 60)
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]
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incrementFieldResolver = HashMap.singleton "incrementCircumference"
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$ ValueResolver (Out.Field Nothing (Out.NamedScalarType int) mempty)
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$ pure $ Int 61
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hatField = Out.Field Nothing (Out.NamedObjectType hatType) mempty
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hatFieldResolver =
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HashMap.singleton "garment" $ ValueResolver hatField garment
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spec :: Spec
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spec =
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describe "Root operation type" $ do
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it "returns objects from the root resolvers" $ do
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let querySource = [r|
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{
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garment {
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circumference
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}
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}
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|]
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expected = object
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[ "data" .= object
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[ "garment" .= object
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[ "circumference" .= (60 :: Int)
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]
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]
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]
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actual <- graphql schema querySource
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actual `shouldBe` expected
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it "chooses Mutation" $ do
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let querySource = [r|
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mutation {
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incrementCircumference
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}
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|]
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expected = object
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[ "data" .= object
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[ "incrementCircumference" .= (61 :: Int)
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]
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]
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actual <- graphql schema querySource
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actual `shouldBe` expected
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