1085 lines
41 KiB
Haskell
1085 lines
41 KiB
Haskell
{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE DeriveGeneric #-}
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{-# LANGUAGE FlexibleContexts #-}
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{-# LANGUAGE FlexibleInstances #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE PolyKinds #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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{-# LANGUAGE TypeFamilies #-}
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{-# LANGUAGE TypeOperators #-}
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{-# LANGUAGE TypeApplications #-}
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{-# OPTIONS_GHC -freduction-depth=100 #-}
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module Servant.ServerSpec where
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import Prelude ()
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import Prelude.Compat
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import Control.Monad
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(forM_, unless, when)
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import Control.Monad.Error.Class
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(MonadError (..))
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import Data.Aeson
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(FromJSON, ToJSON, decode', encode)
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import qualified Data.ByteString as BS
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import qualified Data.ByteString.Base64 as Base64
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import Data.Char
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(toUpper)
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import Data.Maybe
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(fromMaybe)
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import Data.Proxy
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(Proxy (Proxy))
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import Data.String
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(fromString)
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import Data.String.Conversions
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(cs)
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import qualified Data.Text as T
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import GHC.Generics
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(Generic)
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import Network.HTTP.Types
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(QueryItem, Status (..), hAccept, hContentType, imATeapot418,
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methodDelete, methodGet, methodHead, methodPatch, methodPost,
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methodPut, ok200, parseQuery)
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import Network.Wai
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(Application, Middleware, Request, pathInfo, queryString,
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rawQueryString, requestHeaders, responseLBS)
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import Network.Wai.Test
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(defaultRequest, request, runSession, simpleBody,
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simpleHeaders, simpleStatus)
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import Servant.API
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((:<|>) (..), (:>), AuthProtect, BasicAuth,
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BasicAuthData (BasicAuthData), Capture, Capture', CaptureAll,
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Delete, EmptyAPI, Fragment, Get, HasStatus (StatusOf), Header,
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Headers, HttpVersion, IsSecure (..), JSON, Lenient,
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NoContent (..), NoContentVerb, NoFraming, OctetStream, Patch,
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PlainText, Post, Put, QueryFlag, QueryParam, QueryParams, QueryParamForm, Raw,
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RemoteHost, ReqBody, SourceIO, StdMethod (..), Stream, Strict,
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UVerb, Union, Verb, WithStatus (..), addHeader)
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import Servant.Server
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(Context ((:.), EmptyContext), Handler, Server, Tagged (..),
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emptyServer, err401, err403, err404, respond, serve,
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serveWithContext)
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import Servant.Test.ComprehensiveAPI
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import qualified Servant.Types.SourceT as S
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import Test.Hspec
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(Spec, context, describe, it, shouldBe, shouldContain)
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import Test.Hspec.Wai
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(get, liftIO, matchHeaders, matchStatus, shouldRespondWith,
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with, (<:>))
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import qualified Test.Hspec.Wai as THW
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import Web.FormUrlEncoded
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(FromForm)
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import Servant.Server.Experimental.Auth
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(AuthHandler, AuthServerData, mkAuthHandler)
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import Servant.Server.Internal.BasicAuth
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(BasicAuthCheck (BasicAuthCheck),
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BasicAuthResult (Authorized, Unauthorized))
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import Servant.Server.Internal.Context
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(NamedContext (..))
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-- * comprehensive api test
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-- This declaration simply checks that all instances are in place.
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_ = serveWithContext comprehensiveAPI comprehensiveApiContext
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comprehensiveApiContext :: Context '[NamedContext "foo" '[]]
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comprehensiveApiContext = NamedContext EmptyContext :. EmptyContext
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-- * Specs
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spec :: Spec
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spec = do
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verbSpec
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uverbSpec
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captureSpec
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captureAllSpec
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queryParamSpec
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queryParamFormSpec
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fragmentSpec
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reqBodySpec
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headerSpec
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rawSpec
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alternativeSpec
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responseHeadersSpec
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uverbResponseHeadersSpec
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miscCombinatorSpec
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basicAuthSpec
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genAuthSpec
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------------------------------------------------------------------------------
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-- * verbSpec {{{
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------------------------------------------------------------------------------
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type VerbApi method status
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= Verb method status '[JSON] Person
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:<|> "noContent" :> NoContentVerb method
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:<|> "header" :> Verb method status '[JSON] (Headers '[Header "H" Int] Person)
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:<|> "headerNC" :> Verb method status '[JSON] (Headers '[Header "H" Int] NoContent)
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:<|> "accept" :> ( Verb method status '[JSON] Person
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:<|> Verb method status '[PlainText] String
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)
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:<|> "stream" :> Stream method status NoFraming OctetStream (SourceIO BS.ByteString)
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verbSpec :: Spec
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verbSpec = describe "Servant.API.Verb" $ do
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let server :: Server (VerbApi method status)
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server = return alice
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:<|> return NoContent
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:<|> return (addHeader 5 alice)
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:<|> return (addHeader 10 NoContent)
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:<|> (return alice :<|> return "B")
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:<|> return (S.source ["bytestring"])
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get200 = Proxy :: Proxy (VerbApi 'GET 200)
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post210 = Proxy :: Proxy (VerbApi 'POST 210)
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put203 = Proxy :: Proxy (VerbApi 'PUT 203)
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delete280 = Proxy :: Proxy (VerbApi 'DELETE 280)
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patch214 = Proxy :: Proxy (VerbApi 'PATCH 214)
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wrongMethod m = if m == methodPatch then methodPost else methodPatch
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test desc api method (status :: Int) = context desc $
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with (return $ serve api server) $ do
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-- HEAD and 214/215 need not return bodies
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unless (status `elem` [214, 215] || method == methodHead) $
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it "returns the person" $ do
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response <- THW.request method "/" [] ""
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liftIO $ statusCode (simpleStatus response) `shouldBe` status
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liftIO $ decode' (simpleBody response) `shouldBe` Just alice
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it "returns no content on NoContent" $ do
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response <- THW.request method "/noContent" [] ""
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liftIO $ statusCode (simpleStatus response) `shouldBe` 204
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liftIO $ simpleBody response `shouldBe` ""
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-- HEAD should not return body
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when (method == methodHead) $
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it "HEAD returns no content body" $ do
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response <- THW.request method "/" [] ""
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liftIO $ simpleBody response `shouldBe` ""
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it "throws 405 on wrong method " $ do
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THW.request (wrongMethod method) "/" [] ""
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`shouldRespondWith` 405
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it "returns headers" $ do
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response1 <- THW.request method "/header" [] ""
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liftIO $ statusCode (simpleStatus response1) `shouldBe` status
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liftIO $ simpleHeaders response1 `shouldContain` [("H", "5")]
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response2 <- THW.request method "/header" [] ""
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liftIO $ statusCode (simpleStatus response2) `shouldBe` status
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liftIO $ simpleHeaders response2 `shouldContain` [("H", "5")]
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it "handles trailing '/' gracefully" $ do
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response <- THW.request method "/headerNC/" [] ""
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liftIO $ statusCode (simpleStatus response) `shouldBe` status
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it "returns 406 if the Accept header is not supported" $ do
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THW.request method "" [(hAccept, "crazy/mime")] ""
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`shouldRespondWith` 406
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it "responds if the Accept header is supported" $ do
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response <- THW.request method ""
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[(hAccept, "application/json")] ""
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liftIO $ statusCode (simpleStatus response) `shouldBe` status
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unless (status `elem` [214, 215] || method == methodHead) $
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it "allows modular specification of supported content types" $ do
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response <- THW.request method "/accept" [(hAccept, "text/plain")] ""
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liftIO $ statusCode (simpleStatus response) `shouldBe` status
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liftIO $ simpleBody response `shouldBe` "B"
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it "sets the Content-Type header" $ do
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response <- THW.request method "" [] ""
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liftIO $ simpleHeaders response `shouldContain`
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[("Content-Type", "application/json;charset=utf-8")]
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it "works for Stream as for Result" $ do
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response <- THW.request method "/stream" [] ""
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liftIO $ statusCode (simpleStatus response) `shouldBe` status
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liftIO $ simpleBody response `shouldBe` "bytestring"
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test "GET 200" get200 methodGet 200
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test "POST 210" post210 methodPost 210
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test "PUT 203" put203 methodPut 203
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test "DELETE 280" delete280 methodDelete 280
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test "PATCH 214" patch214 methodPatch 214
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test "GET 200 with HEAD" get200 methodHead 200
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-- }}}
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------------------------------------------------------------------------------
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-- * captureSpec {{{
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------------------------------------------------------------------------------
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type CaptureApi = Capture "legs" Integer :> Get '[JSON] Animal
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:<|> "ears" :> Capture' '[Lenient] "ears" Integer :> Get '[JSON] Animal
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:<|> "eyes" :> Capture' '[Strict] "eyes" Integer :> Get '[JSON] Animal
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captureApi :: Proxy CaptureApi
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captureApi = Proxy
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captureServer :: Server CaptureApi
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captureServer = getLegs :<|> getEars :<|> getEyes
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where getLegs :: Integer -> Handler Animal
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getLegs legs = case legs of
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4 -> return jerry
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2 -> return tweety
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_ -> throwError err404
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getEars :: Either String Integer -> Handler Animal
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getEars (Left _) = return chimera -- ignore integer parse error, return weird animal
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getEars (Right 2) = return jerry
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getEars (Right _) = throwError err404
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getEyes :: Integer -> Handler Animal
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getEyes 2 = return jerry
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getEyes _ = throwError err404
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captureSpec :: Spec
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captureSpec = do
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describe "Servant.API.Capture" $ do
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with (return (serve captureApi captureServer)) $ do
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it "can capture parts of the 'pathInfo'" $ do
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response <- get "/2"
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liftIO $ decode' (simpleBody response) `shouldBe` Just tweety
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it "returns 400 if the decoding fails" $ do
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get "/notAnInt" `shouldRespondWith` 400
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it "returns an animal if eyes or ears are 2" $ do
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get "/ears/2" `shouldRespondWith` 200
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get "/eyes/2" `shouldRespondWith` 200
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it "returns a weird animal on Lenient Capture" $ do
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response <- get "/ears/bla"
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liftIO $ decode' (simpleBody response) `shouldBe` Just chimera
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it "returns 400 if parsing integer fails on Strict Capture" $ do
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get "/eyes/bla" `shouldRespondWith` 400
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with (return (serve
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(Proxy :: Proxy (Capture "captured" String :> Raw))
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(\ "captured" -> Tagged $ \request_ sendResponse ->
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sendResponse $ responseLBS ok200 [] (cs $ show $ pathInfo request_)))) $ do
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it "strips the captured path snippet from pathInfo" $ do
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get "/captured/foo" `shouldRespondWith` (fromString (show ["foo" :: String]))
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-- }}}
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------------------------------------------------------------------------------
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-- * captureAllSpec {{{
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------------------------------------------------------------------------------
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type CaptureAllApi = CaptureAll "legs" Integer :> Get '[JSON] Animal
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captureAllApi :: Proxy CaptureAllApi
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captureAllApi = Proxy
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captureAllServer :: [Integer] -> Handler Animal
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captureAllServer legs = case sum legs of
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4 -> return jerry
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2 -> return tweety
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0 -> return beholder
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_ -> throwError err404
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captureAllSpec :: Spec
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captureAllSpec = do
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describe "Servant.API.CaptureAll" $ do
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with (return (serve captureAllApi captureAllServer)) $ do
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it "can capture a single element of the 'pathInfo'" $ do
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response <- get "/2"
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liftIO $ decode' (simpleBody response) `shouldBe` Just tweety
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it "can capture multiple elements of the 'pathInfo'" $ do
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response <- get "/2/2"
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liftIO $ decode' (simpleBody response) `shouldBe` Just jerry
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it "can capture arbitrarily many elements of the 'pathInfo'" $ do
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response <- get "/1/1/0/1/0/1"
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liftIO $ decode' (simpleBody response) `shouldBe` Just jerry
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it "can capture when there are no elements in 'pathInfo'" $ do
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response <- get "/"
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liftIO $ decode' (simpleBody response) `shouldBe` Just beholder
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it "returns 400 if the decoding fails" $ do
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get "/notAnInt" `shouldRespondWith` 400
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it "returns 400 if the decoding fails, regardless of which element" $ do
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get "/1/0/0/notAnInt/3/" `shouldRespondWith` 400
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it "returns 400 if the decoding fails, even when it's multiple elements" $ do
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get "/1/0/0/notAnInt/3/orange/" `shouldRespondWith` 400
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with (return (serve
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(Proxy :: Proxy (CaptureAll "segments" String :> Raw))
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(\ _captured -> Tagged $ \request_ sendResponse ->
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sendResponse $ responseLBS ok200 [] (cs $ show $ pathInfo request_)))) $ do
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it "consumes everything from pathInfo" $ do
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get "/captured/foo/bar/baz" `shouldRespondWith` (fromString (show ([] :: [Int])))
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-- }}}
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------------------------------------------------------------------------------
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-- * queryParamSpec {{{
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------------------------------------------------------------------------------
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type QueryParamApi = QueryParam "name" String :> Get '[JSON] Person
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:<|> "a" :> QueryParams "names" String :> Get '[JSON] Person
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:<|> "b" :> QueryFlag "capitalize" :> Get '[JSON] Person
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:<|> "param" :> QueryParam "age" Integer :> Get '[JSON] Person
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:<|> "multiparam" :> QueryParams "ages" Integer :> Get '[JSON] Person
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queryParamApi :: Proxy QueryParamApi
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queryParamApi = Proxy
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qpServer :: Server QueryParamApi
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qpServer = queryParamServer :<|> qpNames :<|> qpCapitalize :<|> qpAge :<|> qpAges
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where qpNames (_:name2:_) = return alice { name = name2 }
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qpNames _ = return alice
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qpCapitalize False = return alice
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qpCapitalize True = return alice { name = map toUpper (name alice) }
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qpAge Nothing = return alice
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qpAge (Just age') = return alice{ age = age'}
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qpAges ages = return alice{ age = sum ages}
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queryParamServer (Just name_) = return alice{name = name_}
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queryParamServer Nothing = return alice
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queryParamSpec :: Spec
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queryParamSpec = do
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let mkRequest params pinfo = Network.Wai.Test.request defaultRequest
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{ rawQueryString = params
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, queryString = parseQuery params
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, pathInfo = pinfo
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}
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describe "Servant.API.QueryParam" $ do
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it "allows retrieving simple GET parameters" $
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flip runSession (serve queryParamApi qpServer) $ do
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response1 <- mkRequest "?name=bob" []
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liftIO $ decode' (simpleBody response1) `shouldBe` Just alice
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{ name = "bob"
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}
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it "allows retrieving lists in GET parameters" $
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flip runSession (serve queryParamApi qpServer) $ do
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response2 <- mkRequest "?names[]=bob&names[]=john" ["a"]
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liftIO $ decode' (simpleBody response2) `shouldBe` Just alice
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{ name = "john"
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}
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it "parses a query parameter" $
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flip runSession (serve queryParamApi qpServer) $ do
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response <- mkRequest "?age=55" ["param"]
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liftIO $ decode' (simpleBody response) `shouldBe` Just alice
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{ age = 55
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}
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it "generates an error on query parameter parse failure" $
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flip runSession (serve queryParamApi qpServer) $ do
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response <- mkRequest "?age=foo" ["param"]
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liftIO $ statusCode (simpleStatus response) `shouldBe` 400
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return ()
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it "parses multiple query parameters" $
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flip runSession (serve queryParamApi qpServer) $ do
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response <- mkRequest "?ages=10&ages=22" ["multiparam"]
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liftIO $ decode' (simpleBody response) `shouldBe` Just alice
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{ age = 32
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}
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it "generates an error on parse failures of multiple parameters" $
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flip runSession (serve queryParamApi qpServer) $ do
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response <- mkRequest "?ages=2&ages=foo" ["multiparam"]
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liftIO $ statusCode (simpleStatus response) `shouldBe` 400
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return ()
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it "allows retrieving value-less GET parameters" $
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flip runSession (serve queryParamApi qpServer) $ do
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response3 <- mkRequest "?capitalize" ["b"]
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liftIO $ decode' (simpleBody response3) `shouldBe` Just alice
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{ name = "ALICE"
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}
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response3' <- mkRequest "?capitalize=" ["b"]
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liftIO $ decode' (simpleBody response3') `shouldBe` Just alice
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{ name = "ALICE"
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}
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response3'' <- mkRequest "?unknown=" ["b"]
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liftIO $ decode' (simpleBody response3'') `shouldBe` Just alice
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{ name = "Alice"
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}
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describe "Uses queryString instead of rawQueryString" $ do
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-- test query parameters rewriter
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let queryRewriter :: Middleware
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queryRewriter app req = app req
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{ queryString = fmap rewrite $ queryString req
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}
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where
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rewrite :: QueryItem -> QueryItem
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rewrite (k, v) = (fromMaybe k (BS.stripPrefix "person_" k), v)
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let app = queryRewriter $ serve queryParamApi qpServer
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it "allows rewriting for simple GET/query parameters" $
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flip runSession app $ do
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response1 <- mkRequest "?person_name=bob" []
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liftIO $ decode' (simpleBody response1) `shouldBe` Just alice
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{ name = "bob"
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}
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it "allows rewriting for lists in GET parameters" $
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flip runSession app $ do
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response2 <- mkRequest "?person_names[]=bob&person_names[]=john" ["a"]
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liftIO $ decode' (simpleBody response2) `shouldBe` Just alice
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{ name = "john"
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}
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it "allows rewriting when parsing multiple query parameters" $
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flip runSession app $ do
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response <- mkRequest "?person_ages=10&person_ages=22" ["multiparam"]
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liftIO $ decode' (simpleBody response) `shouldBe` Just alice
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{ age = 32
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}
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it "allows retrieving value-less GET parameters" $
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flip runSession app $ do
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response3 <- mkRequest "?person_capitalize" ["b"]
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liftIO $ decode' (simpleBody response3) `shouldBe` Just alice
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{ name = "ALICE"
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}
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response3' <- mkRequest "?person_capitalize=" ["b"]
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liftIO $ decode' (simpleBody response3') `shouldBe` Just alice
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{ name = "ALICE"
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}
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response3'' <- mkRequest "?person_unknown=" ["b"]
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liftIO $ decode' (simpleBody response3'') `shouldBe` Just alice
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{ name = "Alice"
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}
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------------------------------------------------------------------------------
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-- * queryParamFormSpec {{{
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------------------------------------------------------------------------------
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data AnimalSearch = AnimalSearch {
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sName :: String
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, sLegs :: Integer
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} deriving (Eq, Show, Generic)
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instance FromForm AnimalSearch
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type QueryParamFormApi =
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QueryParamForm AnimalSearch :> Get '[JSON] Animal
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:<|> "before-param"
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:> QueryParam "before" Bool
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:> QueryParamForm AnimalSearch
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:> Get '[JSON] Animal
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:<|> "mixed-param"
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:> QueryParam "before" Bool
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:> QueryParamForm AnimalSearch
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:> QueryParam "after" Bool
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:> Get '[JSON] Animal
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queryParamFormApi :: Proxy QueryParamFormApi
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queryParamFormApi = Proxy
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qpFormServer :: Server QueryParamFormApi
|
|
qpFormServer = searchAnimal :<|> searchWithBeforeParms :<|> searchWithAroundParms
|
|
|
|
where searchAnimal (Just (Right search)) = return $ Animal { species = sName search, numberOfLegs = sLegs search}
|
|
searchAnimal (Just (Left _)) = return $ Animal { species = "broken", numberOfLegs = 0}
|
|
searchAnimal Nothing = return bimac
|
|
|
|
searchWithBeforeParms (Just _) (Just (Right search)) = return $ Animal { species = sName search, numberOfLegs = sLegs search}
|
|
searchWithBeforeParms _ _ = return bimac
|
|
|
|
searchWithAroundParms (Just _) (Just (Right search)) (Just True) = return $ Animal { species = sName search, numberOfLegs = sLegs search}
|
|
searchWithAroundParms _ _ _ = return bimac
|
|
|
|
|
|
queryParamFormSpec :: Spec
|
|
queryParamFormSpec = do
|
|
describe "Servant.API.QueryParamForm" $ do
|
|
it "allows query params into form" $
|
|
(flip runSession) (serve queryParamFormApi qpFormServer) $ do
|
|
let params1 = "?sName=bimac&sLegs=7"
|
|
response1 <- Network.Wai.Test.request defaultRequest{
|
|
rawQueryString = params1,
|
|
queryString = parseQuery params1
|
|
}
|
|
liftIO $ do
|
|
decode' (simpleBody response1) `shouldBe` (Just $ Animal { species = "bimac", numberOfLegs = 7})
|
|
it "Just a question mark will match but return a Left" $
|
|
(flip runSession) (serve queryParamFormApi qpFormServer) $ do
|
|
let paramsQ = "?"
|
|
response1 <- Network.Wai.Test.request defaultRequest{
|
|
rawQueryString = paramsQ,
|
|
queryString = parseQuery paramsQ
|
|
}
|
|
liftIO $ do
|
|
decode' (simpleBody response1) `shouldBe` (Just $ Animal { species = "broken", numberOfLegs = 0})
|
|
it "allows no query params at all" $
|
|
(flip runSession) (serve queryParamFormApi qpFormServer) $ do
|
|
response1 <- Network.Wai.Test.request defaultRequest
|
|
liftIO $ do
|
|
decode' (simpleBody response1) `shouldBe` Just bimac
|
|
it "does not generate an error for incomplete form" $
|
|
(flip runSession) (serve queryParamFormApi qpFormServer) $ do
|
|
let paramsBork = "?sName=bimac"
|
|
responseBork <- Network.Wai.Test.request defaultRequest{
|
|
rawQueryString = paramsBork,
|
|
queryString = parseQuery paramsBork
|
|
}
|
|
liftIO $ do
|
|
decode' (simpleBody responseBork) `shouldBe` (Just $ Animal { species = "broken", numberOfLegs = 0})
|
|
return ()
|
|
it "does not generate an error for duplicated keys" $
|
|
(flip runSession) (serve queryParamFormApi qpFormServer) $ do
|
|
let paramsBork = "?sName=bimac&sName=dup&sLegs=12"
|
|
responseBork <- Network.Wai.Test.request defaultRequest{
|
|
rawQueryString = paramsBork,
|
|
queryString = parseQuery paramsBork
|
|
}
|
|
liftIO $ do
|
|
decode' (simpleBody responseBork) `shouldBe` (Just $ Animal { species = "broken", numberOfLegs = 0})
|
|
return ()
|
|
it "does not generate an error for form with bad input types" $
|
|
(flip runSession) (serve queryParamFormApi qpFormServer) $ do
|
|
let paramsBork = "?sName=bimac&sLegs=ocean"
|
|
responseBork <- Network.Wai.Test.request defaultRequest{
|
|
rawQueryString = paramsBork,
|
|
queryString = parseQuery paramsBork
|
|
}
|
|
liftIO $ do
|
|
decode' (simpleBody responseBork) `shouldBe` (Just $ Animal { species = "broken", numberOfLegs = 0})
|
|
return ()
|
|
|
|
it "allows query params into form even with other params" $
|
|
(flip runSession) (serve queryParamFormApi qpFormServer) $ do
|
|
let params1 = "?before=true&sName=bimac&sLegs=6"
|
|
response1 <- Network.Wai.Test.request defaultRequest{
|
|
rawQueryString = params1,
|
|
queryString = parseQuery params1,
|
|
pathInfo = ["before-param"]
|
|
}
|
|
liftIO $ do
|
|
decode' (simpleBody response1) `shouldBe` (Just $ Animal { species = "bimac", numberOfLegs = 6})
|
|
|
|
let params2 = "?sName=bimac&before=true&sLegs=5"
|
|
response2 <- Network.Wai.Test.request defaultRequest{
|
|
rawQueryString = params2,
|
|
queryString = parseQuery params2,
|
|
pathInfo = ["before-param"]
|
|
}
|
|
liftIO $ do
|
|
decode' (simpleBody response2) `shouldBe` (Just $ Animal { species = "bimac", numberOfLegs = 5})
|
|
it "allows completely mixed up params with QueryParamForm" $
|
|
(flip runSession) (serve queryParamFormApi qpFormServer) $ do
|
|
let params1 = "?sLegs=1&before=true&sName=bimac&after=true&unknown=ignoreThis"
|
|
response1 <- Network.Wai.Test.request defaultRequest{
|
|
rawQueryString = params1,
|
|
queryString = parseQuery params1,
|
|
pathInfo = ["mixed-param"]
|
|
}
|
|
liftIO $ do
|
|
decode' (simpleBody response1) `shouldBe` (Just $ Animal { species = "bimac", numberOfLegs = 1})
|
|
|
|
-- }}}
|
|
------------------------------------------------------------------------------
|
|
-- * fragmentSpec {{{
|
|
------------------------------------------------------------------------------
|
|
|
|
type FragmentApi = "name" :> Fragment String :> Get '[JSON] Person
|
|
:<|> "age" :> Fragment Integer :> Get '[JSON] Person
|
|
|
|
fragmentApi :: Proxy FragmentApi
|
|
fragmentApi = Proxy
|
|
|
|
fragServer :: Server FragmentApi
|
|
fragServer = fragmentServer :<|> fragAge
|
|
where
|
|
fragmentServer = return alice
|
|
fragAge = return alice
|
|
|
|
fragmentSpec :: Spec
|
|
fragmentSpec = do
|
|
let mkRequest params pinfo = Network.Wai.Test.request defaultRequest
|
|
{ rawQueryString = params
|
|
, queryString = parseQuery params
|
|
, pathInfo = pinfo
|
|
}
|
|
|
|
describe "Servant.API.Fragment" $ do
|
|
it "ignores fragment even if it is present in query" $ do
|
|
flip runSession (serve fragmentApi fragServer) $ do
|
|
response1 <- mkRequest "#Alice" ["name"]
|
|
liftIO $ decode' (simpleBody response1) `shouldBe` Just alice
|
|
|
|
-- }}}
|
|
------------------------------------------------------------------------------
|
|
-- * reqBodySpec {{{
|
|
------------------------------------------------------------------------------
|
|
type ReqBodyApi = ReqBody '[JSON] Person :> Post '[JSON] Person
|
|
:<|> "blah" :> ReqBody '[JSON] Person :> Put '[JSON] Integer
|
|
|
|
reqBodyApi :: Proxy ReqBodyApi
|
|
reqBodyApi = Proxy
|
|
|
|
reqBodySpec :: Spec
|
|
reqBodySpec = describe "Servant.API.ReqBody" $ do
|
|
|
|
let server :: Server ReqBodyApi
|
|
server = return :<|> return . age
|
|
mkReq method x = THW.request method x
|
|
[(hContentType, "application/json;charset=utf-8")]
|
|
|
|
with (return $ serve reqBodyApi server) $ do
|
|
|
|
it "passes the argument to the handler" $ do
|
|
response <- mkReq methodPost "" (encode alice)
|
|
liftIO $ decode' (simpleBody response) `shouldBe` Just alice
|
|
|
|
it "rejects invalid request bodies with status 400" $ do
|
|
mkReq methodPut "/blah" "some invalid body" `shouldRespondWith` 400
|
|
|
|
it "responds with 415 if the request body media type is unsupported" $ do
|
|
THW.request methodPost "/"
|
|
[(hContentType, "application/nonsense")] "" `shouldRespondWith` 415
|
|
|
|
-- }}}
|
|
------------------------------------------------------------------------------
|
|
-- * headerSpec {{{
|
|
------------------------------------------------------------------------------
|
|
|
|
type HeaderApi a = Header "MyHeader" a :> Delete '[JSON] NoContent
|
|
headerApi :: Proxy a -> Proxy (HeaderApi a)
|
|
headerApi _ = Proxy
|
|
|
|
headerSpec :: Spec
|
|
headerSpec = describe "Servant.API.Header" $ do
|
|
|
|
let expectsInt :: Maybe Int -> Handler NoContent
|
|
expectsInt (Just x) = do
|
|
when (x /= 5) $ error "Expected 5"
|
|
return NoContent
|
|
expectsInt Nothing = error "Expected an int"
|
|
|
|
let expectsString :: Maybe String -> Handler NoContent
|
|
expectsString (Just x) = do
|
|
when (x /= "more from you") $ error "Expected more from you"
|
|
return NoContent
|
|
expectsString Nothing = error "Expected a string"
|
|
|
|
with (return (serve (headerApi (Proxy :: Proxy Int)) expectsInt)) $ do
|
|
let delete' x = THW.request methodDelete x [("MyHeader", "5")]
|
|
|
|
it "passes the header to the handler (Int)" $
|
|
delete' "/" "" `shouldRespondWith` 200
|
|
|
|
with (return (serve (headerApi (Proxy :: Proxy String)) expectsString)) $ do
|
|
let delete' x = THW.request methodDelete x [("MyHeader", "more from you")]
|
|
|
|
it "passes the header to the handler (String)" $
|
|
delete' "/" "" `shouldRespondWith` 200
|
|
|
|
with (return (serve (headerApi (Proxy :: Proxy Int)) expectsInt)) $ do
|
|
let delete' x = THW.request methodDelete x [("MyHeader", "not a number")]
|
|
|
|
it "checks for parse errors" $
|
|
delete' "/" "" `shouldRespondWith` 400
|
|
|
|
|
|
-- }}}
|
|
------------------------------------------------------------------------------
|
|
-- * rawSpec {{{
|
|
------------------------------------------------------------------------------
|
|
|
|
type RawApi = "foo" :> Raw
|
|
|
|
rawApi :: Proxy RawApi
|
|
rawApi = Proxy
|
|
|
|
rawApplication :: Show a => (Request -> a) -> Tagged m Application
|
|
rawApplication f = Tagged $ \request_ sendResponse ->
|
|
sendResponse $ responseLBS ok200 []
|
|
(cs $ show $ f request_)
|
|
|
|
rawSpec :: Spec
|
|
rawSpec = do
|
|
describe "Servant.API.Raw" $ do
|
|
it "runs applications" $ do
|
|
flip runSession (serve rawApi (rawApplication (const (42 :: Integer)))) $ do
|
|
response <- Network.Wai.Test.request defaultRequest{
|
|
pathInfo = ["foo"]
|
|
}
|
|
liftIO $ do
|
|
simpleBody response `shouldBe` "42"
|
|
|
|
it "gets the pathInfo modified" $ do
|
|
flip runSession (serve rawApi (rawApplication pathInfo)) $ do
|
|
response <- Network.Wai.Test.request defaultRequest{
|
|
pathInfo = ["foo", "bar"]
|
|
}
|
|
liftIO $ do
|
|
simpleBody response `shouldBe` cs (show ["bar" :: String])
|
|
|
|
-- }}}
|
|
------------------------------------------------------------------------------
|
|
-- * alternativeSpec {{{
|
|
------------------------------------------------------------------------------
|
|
type AlternativeApi =
|
|
"foo" :> Get '[JSON] Person
|
|
:<|> "bar" :> Get '[JSON] Animal
|
|
:<|> "foo" :> Get '[PlainText] T.Text
|
|
:<|> "bar" :> Post '[JSON] Animal
|
|
:<|> "bar" :> Put '[JSON] Animal
|
|
:<|> "bar" :> Delete '[JSON] NoContent
|
|
|
|
alternativeApi :: Proxy AlternativeApi
|
|
alternativeApi = Proxy
|
|
|
|
alternativeServer :: Server AlternativeApi
|
|
alternativeServer =
|
|
return alice
|
|
:<|> return jerry
|
|
:<|> return "a string"
|
|
:<|> return jerry
|
|
:<|> return jerry
|
|
:<|> return NoContent
|
|
|
|
alternativeSpec :: Spec
|
|
alternativeSpec = do
|
|
describe "Servant.API.Alternative" $ do
|
|
with (return $ serve alternativeApi alternativeServer) $ do
|
|
|
|
it "unions endpoints" $ do
|
|
response <- get "/foo"
|
|
liftIO $ do
|
|
decode' (simpleBody response) `shouldBe`
|
|
Just alice
|
|
response_ <- get "/bar"
|
|
liftIO $ do
|
|
decode' (simpleBody response_) `shouldBe`
|
|
Just jerry
|
|
|
|
it "checks all endpoints before returning 415" $ do
|
|
get "/foo" `shouldRespondWith` 200
|
|
|
|
it "returns 404 if the path does not exist" $ do
|
|
get "/nonexistent" `shouldRespondWith` 404
|
|
-- }}}
|
|
------------------------------------------------------------------------------
|
|
-- * responseHeaderSpec {{{
|
|
------------------------------------------------------------------------------
|
|
type ResponseHeadersApi =
|
|
Get '[JSON] (Headers '[Header "H1" Int, Header "H2" String] String)
|
|
:<|> Post '[JSON] (Headers '[Header "H1" Int, Header "H2" String] String)
|
|
:<|> Put '[JSON] (Headers '[Header "H1" Int, Header "H2" String] String)
|
|
:<|> Patch '[JSON] (Headers '[Header "H1" Int, Header "H2" String] String)
|
|
|
|
|
|
responseHeadersServer :: Server ResponseHeadersApi
|
|
responseHeadersServer = let h = return $ addHeader 5 $ addHeader "kilroy" "hi"
|
|
in h :<|> h :<|> h :<|> h
|
|
|
|
|
|
responseHeadersSpec :: Spec
|
|
responseHeadersSpec = describe "ResponseHeaders" $ do
|
|
with (return $ serve (Proxy :: Proxy ResponseHeadersApi) responseHeadersServer) $ do
|
|
|
|
let methods = [methodGet, methodPost, methodPut, methodPatch]
|
|
|
|
it "includes the headers in the response" $
|
|
forM_ methods $ \method ->
|
|
THW.request method "/" [] ""
|
|
`shouldRespondWith` "\"hi\""{ matchHeaders = ["H1" <:> "5", "H2" <:> "kilroy"]
|
|
, matchStatus = 200
|
|
}
|
|
|
|
it "responds with not found for non-existent endpoints" $
|
|
forM_ methods $ \method ->
|
|
THW.request method "blahblah" [] ""
|
|
`shouldRespondWith` 404
|
|
|
|
it "returns 406 if the Accept header is not supported" $
|
|
forM_ methods $ \method ->
|
|
THW.request method "" [(hAccept, "crazy/mime")] ""
|
|
`shouldRespondWith` 406
|
|
|
|
-- }}}
|
|
------------------------------------------------------------------------------
|
|
-- * uverbResponseHeaderSpec {{{
|
|
------------------------------------------------------------------------------
|
|
type UVerbHeaderResponse = '[
|
|
WithStatus 200 (Headers '[Header "H1" Int] String),
|
|
WithStatus 404 String ]
|
|
|
|
type UVerbResponseHeadersApi =
|
|
Capture "ok" Bool :> UVerb 'GET '[JSON] UVerbHeaderResponse
|
|
|
|
uverbResponseHeadersServer :: Server UVerbResponseHeadersApi
|
|
uverbResponseHeadersServer True = respond . WithStatus @200 . addHeader @"H1" (5 :: Int) $ ("foo" :: String)
|
|
uverbResponseHeadersServer False = respond . WithStatus @404 $ ("bar" :: String)
|
|
|
|
uverbResponseHeadersSpec :: Spec
|
|
uverbResponseHeadersSpec = describe "UVerbResponseHeaders" $ do
|
|
with (return $ serve (Proxy :: Proxy UVerbResponseHeadersApi) uverbResponseHeadersServer) $ do
|
|
|
|
it "includes the headers in the response" $
|
|
THW.request methodGet "/true" [] ""
|
|
`shouldRespondWith` "\"foo\"" { matchHeaders = ["H1" <:> "5"]
|
|
, matchStatus = 200
|
|
}
|
|
|
|
-- }}}
|
|
------------------------------------------------------------------------------
|
|
-- * miscCombinatorSpec {{{
|
|
------------------------------------------------------------------------------
|
|
type MiscCombinatorsAPI
|
|
= "version" :> HttpVersion :> Get '[JSON] String
|
|
:<|> "secure" :> IsSecure :> Get '[JSON] String
|
|
:<|> "host" :> RemoteHost :> Get '[JSON] String
|
|
:<|> "empty" :> EmptyAPI
|
|
|
|
miscApi :: Proxy MiscCombinatorsAPI
|
|
miscApi = Proxy
|
|
|
|
miscServ :: Server MiscCombinatorsAPI
|
|
miscServ = versionHandler
|
|
:<|> secureHandler
|
|
:<|> hostHandler
|
|
:<|> emptyServer
|
|
|
|
where versionHandler = return . show
|
|
secureHandler Secure = return "secure"
|
|
secureHandler NotSecure = return "not secure"
|
|
hostHandler = return . show
|
|
|
|
miscCombinatorSpec :: Spec
|
|
miscCombinatorSpec = with (return $ serve miscApi miscServ) $
|
|
describe "Misc. combinators for request inspection" $ do
|
|
it "Successfully gets the HTTP version specified in the request" $
|
|
go "/version" "\"HTTP/1.0\""
|
|
|
|
it "Checks that hspec-wai uses HTTP, not HTTPS" $
|
|
go "/secure" "\"not secure\""
|
|
|
|
it "Checks that hspec-wai issues request from 0.0.0.0" $
|
|
go "/host" "\"0.0.0.0:0\""
|
|
|
|
it "Doesn't serve anything from the empty API" $
|
|
Test.Hspec.Wai.get "empty" `shouldRespondWith` 404
|
|
|
|
where go path res = Test.Hspec.Wai.get path `shouldRespondWith` res
|
|
|
|
-- }}}
|
|
------------------------------------------------------------------------------
|
|
-- * Basic Authentication {{{
|
|
------------------------------------------------------------------------------
|
|
|
|
type BasicAuthAPI =
|
|
BasicAuth "foo" () :> "basic" :> Get '[JSON] Animal
|
|
:<|> Raw
|
|
|
|
basicAuthApi :: Proxy BasicAuthAPI
|
|
basicAuthApi = Proxy
|
|
|
|
basicAuthServer :: Server BasicAuthAPI
|
|
basicAuthServer =
|
|
const (return jerry) :<|>
|
|
(Tagged $ \ _ sendResponse -> sendResponse $ responseLBS imATeapot418 [] "")
|
|
|
|
basicAuthContext :: Context '[ BasicAuthCheck () ]
|
|
basicAuthContext =
|
|
let basicHandler = BasicAuthCheck $ \(BasicAuthData usr pass) ->
|
|
if usr == "servant" && pass == "server"
|
|
then return (Authorized ())
|
|
else return Unauthorized
|
|
in basicHandler :. EmptyContext
|
|
|
|
basicAuthSpec :: Spec
|
|
basicAuthSpec = do
|
|
describe "Servant.API.BasicAuth" $ do
|
|
with (return (serveWithContext basicAuthApi basicAuthContext basicAuthServer)) $ do
|
|
|
|
context "Basic Authentication" $ do
|
|
let basicAuthHeaders user password =
|
|
[("Authorization", "Basic " <> Base64.encode (user <> ":" <> password))]
|
|
it "returns 401 when no credentials given" $ do
|
|
get "/basic" `shouldRespondWith` 401
|
|
|
|
it "returns 403 when invalid credentials given" $ do
|
|
THW.request methodGet "/basic" (basicAuthHeaders "servant" "wrong") ""
|
|
`shouldRespondWith` 403
|
|
|
|
it "returns 200 with the right password" $ do
|
|
THW.request methodGet "/basic" (basicAuthHeaders "servant" "server") ""
|
|
`shouldRespondWith` 200
|
|
|
|
it "plays nice with subsequent Raw endpoints" $ do
|
|
get "/foo" `shouldRespondWith` 418
|
|
|
|
-- }}}
|
|
------------------------------------------------------------------------------
|
|
-- * General Authentication {{{
|
|
------------------------------------------------------------------------------
|
|
|
|
type GenAuthAPI = AuthProtect "auth" :> "auth" :> Get '[JSON] Animal
|
|
:<|> Raw
|
|
|
|
genAuthApi :: Proxy GenAuthAPI
|
|
genAuthApi = Proxy
|
|
|
|
genAuthServer :: Server GenAuthAPI
|
|
genAuthServer = const (return tweety)
|
|
:<|> (Tagged $ \ _ sendResponse -> sendResponse $ responseLBS imATeapot418 [] "")
|
|
|
|
type instance AuthServerData (AuthProtect "auth") = ()
|
|
|
|
genAuthContext :: Context '[AuthHandler Request ()]
|
|
genAuthContext =
|
|
let authHandler = \req -> case lookup "Auth" (requestHeaders req) of
|
|
Just "secret" -> return ()
|
|
Just _ -> throwError err403
|
|
Nothing -> throwError err401
|
|
in mkAuthHandler authHandler :. EmptyContext
|
|
|
|
genAuthSpec :: Spec
|
|
genAuthSpec = do
|
|
describe "Servant.API.Auth" $ do
|
|
with (return (serveWithContext genAuthApi genAuthContext genAuthServer)) $ do
|
|
|
|
context "Custom Auth Protection" $ do
|
|
it "returns 401 when missing headers" $ do
|
|
get "/auth" `shouldRespondWith` 401
|
|
|
|
it "returns 403 on wrong passwords" $ do
|
|
THW.request methodGet "/auth" [("Auth","wrong")] "" `shouldRespondWith` 403
|
|
|
|
it "returns 200 with the right header" $ do
|
|
THW.request methodGet "/auth" [("Auth","secret")] "" `shouldRespondWith` 200
|
|
|
|
it "plays nice with subsequent Raw endpoints" $ do
|
|
get "/foo" `shouldRespondWith` 418
|
|
|
|
-- }}}
|
|
------------------------------------------------------------------------------
|
|
-- * UVerb {{{
|
|
------------------------------------------------------------------------------
|
|
|
|
newtype PersonResponse = PersonResponse Person
|
|
deriving Generic
|
|
instance ToJSON PersonResponse
|
|
instance HasStatus PersonResponse where
|
|
type StatusOf PersonResponse = 200
|
|
|
|
newtype RedirectResponse = RedirectResponse String
|
|
deriving Generic
|
|
instance ToJSON RedirectResponse
|
|
instance HasStatus RedirectResponse where
|
|
type StatusOf RedirectResponse = 301
|
|
|
|
newtype AnimalResponse = AnimalResponse Animal
|
|
deriving Generic
|
|
instance ToJSON AnimalResponse
|
|
instance HasStatus AnimalResponse where
|
|
type StatusOf AnimalResponse = 203
|
|
|
|
|
|
type UVerbApi
|
|
= "person" :> Capture "shouldRedirect" Bool :> UVerb 'GET '[JSON] '[PersonResponse, RedirectResponse]
|
|
:<|> "animal" :> UVerb 'GET '[JSON] '[AnimalResponse]
|
|
|
|
uverbSpec :: Spec
|
|
uverbSpec = describe "Servant.API.UVerb " $ do
|
|
let
|
|
joe = Person "joe" 42
|
|
mouse = Animal "Mouse" 7
|
|
|
|
personHandler
|
|
:: Bool
|
|
-> Handler (Union '[PersonResponse
|
|
,RedirectResponse])
|
|
personHandler True = respond $ RedirectResponse "over there!"
|
|
personHandler False = respond $ PersonResponse joe
|
|
|
|
animalHandler = respond $ AnimalResponse mouse
|
|
|
|
server :: Server UVerbApi
|
|
server = personHandler :<|> animalHandler
|
|
|
|
with (pure $ serve (Proxy :: Proxy UVerbApi) server) $ do
|
|
context "A route returning either 301/String or 200/Person" $ do
|
|
context "when requesting the person" $ do
|
|
let theRequest = THW.get "/person/false"
|
|
it "returns status 200" $
|
|
theRequest `shouldRespondWith` 200
|
|
it "returns a person" $ do
|
|
response <- theRequest
|
|
liftIO $ decode' (simpleBody response) `shouldBe` Just joe
|
|
context "requesting the redirect" $
|
|
it "returns a message and status 301" $
|
|
THW.get "/person/true"
|
|
`shouldRespondWith` "\"over there!\"" {matchStatus = 301}
|
|
context "a route with a single response type" $ do
|
|
let theRequest = THW.get "/animal"
|
|
it "should return the defined status code" $
|
|
theRequest `shouldRespondWith` 203
|
|
it "should return the expected response" $ do
|
|
response <- theRequest
|
|
liftIO $ decode' (simpleBody response) `shouldBe` Just mouse
|
|
|
|
-- }}}
|
|
------------------------------------------------------------------------------
|
|
-- * Test data types {{{
|
|
------------------------------------------------------------------------------
|
|
|
|
data Person = Person {
|
|
name :: String,
|
|
age :: Integer
|
|
}
|
|
deriving (Eq, Show, Generic)
|
|
|
|
instance ToJSON Person
|
|
instance FromJSON Person
|
|
|
|
alice :: Person
|
|
alice = Person "Alice" 42
|
|
|
|
data Animal = Animal {
|
|
species :: String,
|
|
numberOfLegs :: Integer
|
|
}
|
|
deriving (Eq, Show, Generic)
|
|
|
|
instance ToJSON Animal
|
|
instance FromJSON Animal
|
|
|
|
jerry :: Animal
|
|
jerry = Animal "Mouse" 4
|
|
|
|
tweety :: Animal
|
|
tweety = Animal "Bird" 2
|
|
|
|
-- weird animal with non-integer amount of ears
|
|
chimera :: Animal
|
|
chimera = Animal "Chimera" (-1)
|
|
|
|
beholder :: Animal
|
|
beholder = Animal "Beholder" 0
|
|
|
|
bimac :: Animal
|
|
bimac = Animal { species = "Octopus bimaculoides" , numberOfLegs = 8}
|
|
|
|
-- }}}
|