86 lines
2.7 KiB
Haskell
86 lines
2.7 KiB
Haskell
{-# LANGUAGE ConstraintKinds #-}
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{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE DeriveGeneric #-}
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{-# LANGUAGE FlexibleContexts #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE TypeOperators #-}
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module Servant.MockSpec where
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import Data.Aeson as Aeson
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import Data.Proxy
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import GHC.Generics
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import Network.Wai
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import Servant.API
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import Test.Hspec hiding (pending)
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import Test.Hspec.Wai
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import Test.QuickCheck
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import Servant
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import Servant.API.Internal.Test.ComprehensiveAPI
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import Servant.Mock
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-- This declaration simply checks that all instances are in place.
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_ = mock comprehensiveAPI (Proxy :: Proxy '[NamedContext "foo" '[]])
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data Body
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= Body
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| ArbitraryBody
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deriving (Generic)
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instance ToJSON Body
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instance Arbitrary Body where
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arbitrary = return ArbitraryBody
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data TestHeader
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= TestHeader
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| ArbitraryHeader
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deriving (Show)
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instance ToHttpApiData TestHeader where
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toHeader = toHeader . show
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toUrlPiece _ = error "ToHttpApiData.toUrlPiece not implemented for TestHeader"
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toQueryParam _ = error "ToHttpApiData.toQueryParam not implemented for TestHeader"
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instance Arbitrary TestHeader where
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arbitrary = return ArbitraryHeader
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spec :: Spec
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spec = do
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describe "mock" $ do
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context "Get" $ do
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let api :: Proxy (Get '[JSON] Body)
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api = Proxy
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app = serve api (mock api Proxy)
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with (return app) $ do
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it "serves arbitrary response bodies" $ do
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get "/" `shouldRespondWith` 200{
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matchBody = Just $ Aeson.encode ArbitraryBody
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}
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context "response headers" $ do
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let withHeader :: Proxy (Get '[JSON] (Headers '[Header "foo" TestHeader] Body))
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withHeader = Proxy
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withoutHeader :: Proxy (Get '[JSON] (Headers '[] Body))
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withoutHeader = Proxy
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toApp :: (HasMock api '[]) => Proxy api -> IO Application
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toApp api = return $ serve api (mock api (Proxy :: Proxy '[]))
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with (toApp withHeader) $ do
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it "serves arbitrary response bodies" $ do
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get "/" `shouldRespondWith` 200{
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matchHeaders = return $ MatchHeader $ \ h ->
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if h == [("Content-Type", "application/json"), ("foo", "ArbitraryHeader")]
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then Nothing
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else Just ("headers not correct\n")
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}
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with (toApp withoutHeader) $ do
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it "works for no additional headers" $ do
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get "/" `shouldRespondWith` 200{
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matchHeaders = return $ MatchHeader $ \ h ->
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if h == [("Content-Type", "application/json")]
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then Nothing
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else Just ("headers not correct\n")
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}
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