servant/servant-client/test/Servant/SuccessSpec.hs

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{-# LANGUAGE CPP #-}
{-# LANGUAGE ConstraintKinds #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE PolyKinds #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TypeApplications #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE UndecidableInstances #-}
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{-# OPTIONS_GHC -freduction-depth=100 #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
{-# OPTIONS_GHC -fno-warn-name-shadowing #-}
module Servant.SuccessSpec (spec) where
import Prelude ()
import Prelude.Compat
import Control.Arrow
((+++), left)
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import Control.Concurrent.STM
(atomically)
import Control.Concurrent.STM.TVar
(newTVar, readTVar)
import qualified Data.ByteString as BS
import qualified Data.ByteString.Lazy as BL
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import Data.Foldable
(forM_, toList)
import Data.Maybe
(listToMaybe)
import Data.Monoid ()
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import Data.Text
(Text)
import qualified Network.HTTP.Client as C
import qualified Network.HTTP.Types as HTTP
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import Test.Hspec
import Test.Hspec.QuickCheck
import Test.HUnit
import Test.QuickCheck
import Servant.API
(NoContent (NoContent), WithStatus (WithStatus), getHeaders, Headers(..))
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import Servant.Client
import qualified Servant.Client.Core.Request as Req
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import Servant.ClientTestUtils
import Servant.Test.ComprehensiveAPI
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-- This declaration simply checks that all instances are in place.
_ = client comprehensiveAPIWithoutStreaming
spec :: Spec
spec = describe "Servant.SuccessSpec" $ do
successSpec
successSpec :: Spec
successSpec = beforeAll (startWaiApp server) $ afterAll endWaiApp $ do
describe "Servant.API.Get" $ do
it "get root endpoint" $ \(_, baseUrl) -> do
left show <$> runClient getRoot baseUrl `shouldReturn` Right carol
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it "get simple endpoint" $ \(_, baseUrl) -> do
left show <$> runClient getGet baseUrl `shouldReturn` Right alice
it "get redirection endpoint" $ \(_, baseUrl) -> do
left show <$> runClient getGet307 baseUrl `shouldReturn` Right "redirecting"
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describe "Servant.API.Delete" $ do
it "allows empty content type" $ \(_, baseUrl) -> do
left show <$> runClient getDeleteEmpty baseUrl `shouldReturn` Right NoContent
it "allows content type" $ \(_, baseUrl) -> do
left show <$> runClient getDeleteContentType baseUrl `shouldReturn` Right NoContent
it "Servant.API.Capture" $ \(_, baseUrl) -> do
left show <$> runClient (getCapture "Paula") baseUrl `shouldReturn` Right (Person "Paula" 0)
it "Servant.API.CaptureAll" $ \(_, baseUrl) -> do
let expected = [Person "Paula" 0, Person "Peta" 1]
left show <$> runClient (getCaptureAll ["Paula", "Peta"]) baseUrl `shouldReturn` Right expected
it "Servant.API.ReqBody" $ \(_, baseUrl) -> do
let p = Person "Clara" 42
left show <$> runClient (getBody p) baseUrl `shouldReturn` Right p
it "Servant.API FailureResponse" $ \(_, baseUrl) -> do
left show <$> runClient (getQueryParam (Just "alice")) baseUrl `shouldReturn` Right alice
Left (FailureResponse req _) <- runClient (getQueryParam (Just "bob")) baseUrl
Req.requestPath req `shouldBe` (baseUrl, "/param")
toList (Req.requestQueryString req) `shouldBe` [("name", Just "bob")]
Req.requestMethod req `shouldBe` HTTP.methodGet
it "Servant.API.QueryParam" $ \(_, baseUrl) -> do
left show <$> runClient (getQueryParam (Just "alice")) baseUrl `shouldReturn` Right alice
Left (FailureResponse _ r) <- runClient (getQueryParam (Just "bob")) baseUrl
responseStatusCode r `shouldBe` HTTP.Status 400 "bob not found"
it "Servant.API.QueryParam binary data" $ \(_, baseUrl) -> do
let payload = BS.pack [0, 1, 2, 4, 8, 16, 32, 64, 128]
apiCall = getQueryParamBinary (Just $ UrlEncodedByteString payload) HTTP.methodGet
(show +++ responseBody) <$> runClient apiCall baseUrl `shouldReturn` Right (BL.fromStrict payload)
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it "Servant.API.QueryParam.QueryParams" $ \(_, baseUrl) -> do
left show <$> runClient (getQueryParams []) baseUrl `shouldReturn` Right []
left show <$> runClient (getQueryParams ["alice", "bob"]) baseUrl
`shouldReturn` Right [Person "alice" 0, Person "bob" 1]
context "Servant.API.QueryParam.QueryFlag" $
forM_ [False, True] $ \ flag -> it (show flag) $ \(_, baseUrl) -> do
left show <$> runClient (getQueryFlag flag) baseUrl `shouldReturn` Right flag
it "Servant.API.Fragment" $ \(_, baseUrl) -> do
left id <$> runClient getFragment baseUrl `shouldReturn` Right alice
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it "Servant.API.Raw on success" $ \(_, baseUrl) -> do
res <- runClient (getRawSuccess HTTP.methodGet) baseUrl
case res of
Left e -> assertFailure $ show e
Right r -> do
responseStatusCode r `shouldBe` HTTP.status200
responseBody r `shouldBe` "rawSuccess"
it "Servant.API.Raw should return a Left in case of failure" $ \(_, baseUrl) -> do
res <- runClient (getRawFailure HTTP.methodGet) baseUrl
case res of
Right _ -> assertFailure "expected Left, but got Right"
Left (FailureResponse _ r) -> do
responseStatusCode r `shouldBe` HTTP.status400
responseBody r `shouldBe` "rawFailure"
Left e -> assertFailure $ "expected FailureResponse, but got " ++ show e
it "Returns headers appropriately" $ \(_, baseUrl) -> do
res <- runClient getRespHeaders baseUrl
case res of
Left e -> assertFailure $ show e
Right val -> getHeaders val `shouldBe` [("X-Example1", "1729"), ("X-Example2", "eg2")]
it "Returns headers on UVerb requests" $ \(_, baseUrl) -> do
res <- runClient getUVerbRespHeaders baseUrl
case res of
Left e -> assertFailure $ show e
Right val -> case matchUnion val of
Just (WithStatus val' :: WithStatus 200 (Headers TestHeaders Bool))
-> getHeaders val' `shouldBe` [("X-Example1", "1729"), ("X-Example2", "eg2")]
Nothing -> assertFailure "unexpected alternative of union"
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it "Stores Cookie in CookieJar after a redirect" $ \(_, baseUrl) -> do
mgr <- C.newManager C.defaultManagerSettings
cj <- atomically . newTVar $ C.createCookieJar []
_ <- runClientM (getRedirectWithCookie HTTP.methodGet) (ClientEnv mgr baseUrl (Just cj) defaultMakeClientRequest)
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cookie <- listToMaybe . C.destroyCookieJar <$> atomically (readTVar cj)
C.cookie_name <$> cookie `shouldBe` Just "testcookie"
C.cookie_value <$> cookie `shouldBe` Just "test"
it "Can modify the outgoing Request using the ClientEnv" $ \(_, baseUrl) -> do
mgr <- C.newManager C.defaultManagerSettings
-- In proper situation, extra headers should probably be visible in API type.
-- However, testing for response timeout is difficult, so we test with something which is easy to observe
let createClientRequest url r = (defaultMakeClientRequest url r) { C.requestHeaders = [("X-Added-Header", "XXX")] }
clientEnv = (mkClientEnv mgr baseUrl) { makeClientRequest = createClientRequest }
res <- runClientM (getRawSuccessPassHeaders HTTP.methodGet) clientEnv
case res of
Left e ->
assertFailure $ show e
Right r ->
("X-Added-Header", "XXX") `elem` toList (responseHeaders r) `shouldBe` True
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modifyMaxSuccess (const 20) $ do
it "works for a combination of Capture, QueryParam, QueryFlag and ReqBody" $ \(_, baseUrl) ->
property $ forAllShrink pathGen shrink $ \(NonEmpty cap) num flag body ->
ioProperty $ do
result <- left show <$> runClient (getMultiple cap num flag body) baseUrl
return $
result === Right (cap, num, flag, body)
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context "With a route that can either return success or redirect" $ do
it "Redirects when appropriate" $ \(_, baseUrl) -> do
eitherResponse <- runClient (uverbGetSuccessOrRedirect True) baseUrl
case eitherResponse of
Left clientError -> fail $ show clientError
Right response -> matchUnion response `shouldBe` Just (WithStatus @301 @Text "redirecting")
it "Returns a proper response when appropriate" $ \(_, baseUrl) -> do
eitherResponse <- runClient (uverbGetSuccessOrRedirect False) baseUrl
case eitherResponse of
Left clientError -> fail $ show clientError
Right response -> matchUnion response `shouldBe` Just (WithStatus @200 alice)
context "with a route that uses uverb but only has a single response" $
it "returns the expected response" $ \(_, baseUrl) -> do
eitherResponse <- runClient (uverbGetCreated) baseUrl
case eitherResponse of
Left clientError -> fail $ show clientError
Right response -> matchUnion response `shouldBe` Just (WithStatus @201 carol)