Eliminate non-exhaustive patterns in ExecuteSpec
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@ -3,7 +3,9 @@
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obtain one at https://mozilla.org/MPL/2.0/. -}
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{-# LANGUAGE DuplicateRecordFields #-}
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{-# LANGUAGE LambdaCase #-}
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{-# LANGUAGE NamedFieldPuns #-}
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{-# LANGUAGE RecordWildCards #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE QuasiQuotes #-}
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@ -11,7 +13,7 @@ module Language.GraphQL.ExecuteSpec
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( spec
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) where
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import Control.Exception (Exception(..), SomeException, throwIO)
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import Control.Exception (Exception(..), SomeException)
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import Control.Monad.Catch (throwM)
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import Data.Conduit
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import Data.HashMap.Strict (HashMap)
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@ -33,6 +35,7 @@ import Text.Megaparsec (parse, errorBundlePretty)
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import Schemas.HeroSchema (heroSchema)
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import Data.Maybe (fromJust)
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import qualified Data.Sequence as Seq
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import Data.Text (Text)
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import qualified Data.Text as Text
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import Test.Hspec.Expectations
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( Expectation
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@ -49,7 +52,7 @@ instance Exception PhilosopherException where
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ResolverException resolverException <- fromException e
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cast resolverException
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philosopherSchema :: Schema (Either SomeException)
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philosopherSchema :: Schema IO
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philosopherSchema =
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schemaWithTypes Nothing queryType Nothing subscriptionRoot extraTypes mempty
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where
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@ -59,7 +62,7 @@ philosopherSchema =
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, Schema.ObjectType bookCollectionType
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]
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queryType :: Out.ObjectType (Either SomeException)
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queryType :: Out.ObjectType IO
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queryType = Out.ObjectType "Query" Nothing []
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$ HashMap.fromList
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[ ("philosopher", ValueResolver philosopherField philosopherResolver)
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@ -75,14 +78,14 @@ queryType = Out.ObjectType "Query" Nothing []
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genresField =
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let fieldType = Out.ListType $ Out.NonNullScalarType string
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in Out.Field Nothing fieldType HashMap.empty
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genresResolver :: Resolve (Either SomeException)
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genresResolver :: Resolve IO
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genresResolver = throwM PhilosopherException
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countField =
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let fieldType = Out.NonNullScalarType int
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in Out.Field Nothing fieldType HashMap.empty
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countResolver = pure ""
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musicType :: Out.ObjectType (Either SomeException)
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musicType :: Out.ObjectType IO
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musicType = Out.ObjectType "Music" Nothing []
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$ HashMap.fromList resolvers
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where
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@ -92,7 +95,7 @@ musicType = Out.ObjectType "Music" Nothing []
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instrumentResolver = pure $ String "piano"
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instrumentField = Out.Field Nothing (Out.NonNullScalarType string) HashMap.empty
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poetryType :: Out.ObjectType (Either SomeException)
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poetryType :: Out.ObjectType IO
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poetryType = Out.ObjectType "Poetry" Nothing []
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$ HashMap.fromList resolvers
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where
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@ -102,10 +105,10 @@ poetryType = Out.ObjectType "Poetry" Nothing []
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genreResolver = pure $ String "Futurism"
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genreField = Out.Field Nothing (Out.NonNullScalarType string) HashMap.empty
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interestType :: Out.UnionType (Either SomeException)
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interestType :: Out.UnionType IO
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interestType = Out.UnionType "Interest" Nothing [musicType, poetryType]
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philosopherType :: Out.ObjectType (Either SomeException)
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philosopherType :: Out.ObjectType IO
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philosopherType = Out.ObjectType "Philosopher" Nothing []
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$ HashMap.fromList resolvers
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where
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@ -146,14 +149,14 @@ philosopherType = Out.ObjectType "Philosopher" Nothing []
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= Out.Field Nothing (Out.NonNullScalarType string) HashMap.empty
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firstLanguageResolver = pure Null
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workType :: Out.InterfaceType (Either SomeException)
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workType :: Out.InterfaceType IO
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workType = Out.InterfaceType "Work" Nothing []
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$ HashMap.fromList fields
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where
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fields = [("title", titleField)]
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titleField = Out.Field Nothing (Out.NonNullScalarType string) HashMap.empty
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bookType :: Out.ObjectType (Either SomeException)
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bookType :: Out.ObjectType IO
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bookType = Out.ObjectType "Book" Nothing [workType]
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$ HashMap.fromList resolvers
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where
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@ -163,7 +166,7 @@ bookType = Out.ObjectType "Book" Nothing [workType]
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titleField = Out.Field Nothing (Out.NonNullScalarType string) HashMap.empty
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titleResolver = pure "Also sprach Zarathustra: Ein Buch für Alle und Keinen"
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bookCollectionType :: Out.ObjectType (Either SomeException)
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bookCollectionType :: Out.ObjectType IO
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bookCollectionType = Out.ObjectType "Book" Nothing [workType]
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$ HashMap.fromList resolvers
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where
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@ -173,7 +176,7 @@ bookCollectionType = Out.ObjectType "Book" Nothing [workType]
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titleField = Out.Field Nothing (Out.NonNullScalarType string) HashMap.empty
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titleResolver = pure "The Three Critiques"
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subscriptionType :: Out.ObjectType (Either SomeException)
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subscriptionType :: Out.ObjectType IO
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subscriptionType = Out.ObjectType "Subscription" Nothing []
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$ HashMap.singleton "newQuote"
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$ EventStreamResolver quoteField (pure $ Object mempty)
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@ -182,7 +185,7 @@ subscriptionType = Out.ObjectType "Subscription" Nothing []
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quoteField =
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Out.Field Nothing (Out.NonNullObjectType quoteType) HashMap.empty
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quoteType :: Out.ObjectType (Either SomeException)
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quoteType :: Out.ObjectType IO
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quoteType = Out.ObjectType "Quote" Nothing []
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$ HashMap.singleton "quote"
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$ ValueResolver quoteField
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@ -207,12 +210,40 @@ shouldResolveTo :: Text.Text -> Response Type.Value -> Expectation
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shouldResolveTo querySource expected =
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case parse document "" querySource of
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(Right parsedDocument) ->
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case execute philosopherSchema Nothing (mempty :: HashMap Name Type.Value) parsedDocument of
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Right (Right result) -> shouldBe result expected
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Right (Left _) -> expectationFailure
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"the query is expected to resolve to a value, but it resolved to an event stream"
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Left executionError -> throwIO executionError
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execute philosopherSchema Nothing (mempty :: HashMap Name Type.Value) parsedDocument >>= go
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(Left errorBundle) -> expectationFailure $ errorBundlePretty errorBundle
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where
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go = \case
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Right result -> shouldBe result expected
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Left _ -> expectationFailure
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"the query is expected to resolve to a value, but it resolved to an event stream"
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-- Asserts that the executor produces an error that starts with a string.
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shouldContainError :: Either (ResponseEventStream IO Type.Value) (Response Type.Value)
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-> Text
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-> Expectation
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shouldContainError streamOrValue expected =
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case streamOrValue of
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Right response -> respond response
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Left _ -> expectationFailure
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"the query is expected to resolve to a value, but it resolved to an event stream"
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where
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startsWith :: Text.Text -> Text.Text -> Bool
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startsWith xs ys = Text.take (Text.length ys) xs == ys
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respond :: Response Type.Value -> Expectation
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respond Response{ errors }
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| any ((`startsWith` expected) . message) errors = pure ()
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| otherwise = expectationFailure
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"the query is expected to execute with errors, but the response doesn't contain any errors"
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parseAndExecute :: Schema IO
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-> Maybe Text
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-> HashMap Name Type.Value
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-> Text
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-> IO (Either (ResponseEventStream IO Type.Value) (Response Type.Value))
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parseAndExecute schema' operation variables
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= either (pure . parseError) (execute schema' operation variables)
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. parse document ""
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spec :: Spec
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spec =
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@ -347,30 +378,18 @@ spec =
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context "queryError" $ do
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let namedQuery name = "query " <> name <> " { philosopher(id: \"1\") { interest } }"
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twoQueries = namedQuery "A" <> " " <> namedQuery "B"
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startsWith :: Text.Text -> Text.Text -> Bool
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startsWith xs ys = Text.take (Text.length ys) xs == ys
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it "throws operation name is required error" $
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let expectedErrorMessage :: Text.Text
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expectedErrorMessage = "Operation name is required"
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execute' :: Document -> Either SomeException EitherStreamOrValue
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execute' = execute philosopherSchema Nothing (mempty :: HashMap Name Type.Value)
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Right (Right (Response _ executionErrors)) = either (pure . parseError) execute'
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$ parse document "" twoQueries
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Error msg _ _ = Seq.index executionErrors 0
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in msg `startsWith` expectedErrorMessage `shouldBe` True
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it "throws operation name is required error" $ do
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let expectedErrorMessage = "Operation name is required"
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actual <- parseAndExecute philosopherSchema Nothing mempty twoQueries
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actual `shouldContainError` expectedErrorMessage
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it "throws operation not found error" $
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let expectedErrorMessage :: Text.Text
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expectedErrorMessage = "Operation \"C\" is not found"
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execute' :: Document -> Either SomeException EitherStreamOrValue
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execute' = execute philosopherSchema (Just "C") (mempty :: HashMap Name Type.Value)
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Right (Right (Response _ executionErrors)) = either (pure . parseError) execute'
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$ parse document "" twoQueries
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Error msg _ _ = Seq.index executionErrors 0
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in msg `startsWith` expectedErrorMessage `shouldBe` True
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it "throws operation not found error" $ do
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let expectedErrorMessage = "Operation \"C\" is not found"
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actual <- parseAndExecute philosopherSchema (Just "C") mempty twoQueries
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actual `shouldContainError` expectedErrorMessage
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it "throws variable coercion error" $
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it "throws variable coercion error" $ do
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let data'' = Null
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executionErrors = pure $ Error
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{ message = "Failed to coerce the variable $id: String."
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@ -378,11 +397,10 @@ spec =
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, path = []
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}
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expected = Response data'' executionErrors
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executeWithVars :: Document -> Either SomeException EitherStreamOrValue
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executeWithVars = execute philosopherSchema Nothing (HashMap.singleton "id" (Type.Int 1))
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Right (Right actual) = either (pure . parseError) executeWithVars
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$ parse document "" "query($id: String) { philosopher(id: \"1\") { firstLanguage } }"
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in actual `shouldBe` expected
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Right actual <- either (pure . parseError) executeWithVars
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$ parse document "" "query($id: String) { philosopher(id: \"1\") { firstLanguage } }"
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actual `shouldBe` expected
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it "throws variable unkown input type error" $
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let data'' = Null
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@ -408,17 +426,15 @@ spec =
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in path' `shouldBe` expected
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context "Subscription" $
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it "subscribes" $
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it "subscribes" $ do
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let data'' = Object
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$ HashMap.singleton "newQuote"
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$ Object
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$ HashMap.singleton "quote"
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$ String "Naturam expelles furca, tamen usque recurret."
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expected = Response data'' mempty
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Left stream
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= fromRight (error "Execution error")
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$ execute philosopherSchema Nothing (mempty :: HashMap Name Type.Value)
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$ fromRight (error "Parse error")
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$ parse document "" "subscription { newQuote { quote } }"
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Right (Just actual) = runConduit $ stream .| await
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in actual `shouldBe` expected
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Left stream <- execute philosopherSchema Nothing (mempty :: HashMap Name Type.Value)
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$ fromRight (error "Parse error")
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$ parse document "" "subscription { newQuote { quote } }"
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Just actual <- runConduit $ stream .| await
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actual `shouldBe` expected
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