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.
92 lines
2.7 KiB
Haskell
92 lines
2.7 KiB
Haskell
{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE QuasiQuotes #-}
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module Test.DirectiveSpec
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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.Aeson as Aeson
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import qualified Data.HashMap.Strict as HashMap
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import Language.GraphQL
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import Language.GraphQL.Type
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import qualified Language.GraphQL.Type.Out as Out
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import Test.Hspec (Spec, describe, it, shouldBe)
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import Text.RawString.QQ (r)
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experimentalResolver :: Schema IO
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experimentalResolver = Schema { query = queryType, mutation = Nothing }
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where
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queryType = Out.ObjectType "Query" Nothing []
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$ HashMap.singleton "experimentalField"
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$ Out.ValueResolver (Out.Field Nothing (Out.NamedScalarType int) mempty)
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$ pure $ Int 5
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emptyObject :: Aeson.Value
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emptyObject = object
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[ "data" .= object []
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]
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spec :: Spec
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spec =
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describe "Directive executor" $ do
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it "should be able to @skip fields" $ do
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let sourceQuery = [r|
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{
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experimentalField @skip(if: true)
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}
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|]
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actual <- graphql experimentalResolver sourceQuery
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actual `shouldBe` emptyObject
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it "should not skip fields if @skip is false" $ do
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let sourceQuery = [r|
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{
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experimentalField @skip(if: false)
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}
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|]
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expected = object
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[ "data" .= object
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[ "experimentalField" .= (5 :: Int)
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]
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]
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actual <- graphql experimentalResolver sourceQuery
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actual `shouldBe` expected
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it "should skip fields if @include is false" $ do
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let sourceQuery = [r|
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{
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experimentalField @include(if: false)
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}
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|]
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actual <- graphql experimentalResolver sourceQuery
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actual `shouldBe` emptyObject
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it "should be able to @skip a fragment spread" $ do
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let sourceQuery = [r|
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{
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...experimentalFragment @skip(if: true)
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}
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fragment experimentalFragment on ExperimentalType {
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experimentalField
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}
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|]
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actual <- graphql experimentalResolver sourceQuery
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actual `shouldBe` emptyObject
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it "should be able to @skip an inline fragment" $ do
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let sourceQuery = [r|
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{
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... on ExperimentalType @skip(if: true) {
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experimentalField
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}
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}
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|]
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actual <- graphql experimentalResolver sourceQuery
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actual `shouldBe` emptyObject
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