servant/test/Servant/Utils/StaticFilesSpec.hs

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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TypeOperators #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
module Servant.Utils.StaticFilesSpec where
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import Control.Exception (bracket)
import Data.Proxy (Proxy(Proxy))
import Network.Wai (Application)
import System.Directory (getCurrentDirectory, setCurrentDirectory, createDirectory)
import System.IO.Temp (withSystemTempDirectory)
import Test.Hspec (Spec, describe, it, around_)
import Test.Hspec.Wai (with, get, shouldRespondWith)
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import Servant.API (JSON)
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import Servant.API.Alternative ((:<|>)((:<|>)))
import Servant.API.Capture (Capture)
import Servant.API.Get (Get)
import Servant.API.Raw (Raw)
import Servant.API.Sub ((:>))
import Servant.Server (Server, serve)
import Servant.ServerSpec (Person(Person))
import Servant.Utils.StaticFiles (serveDirectory)
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type Api =
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"dummy_api" :> Capture "person_name" String :> Get '[JSON] Person
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:<|> "static" :> Raw
api :: Proxy Api
api = Proxy
app :: Application
app = serve api server
server :: Server Api
server =
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(\ name_ -> return (Person name_ 42))
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:<|> serveDirectory "static"
withStaticFiles :: IO () -> IO ()
withStaticFiles action = withSystemTempDirectory "servant-test" $ \ tmpDir ->
bracket (setup tmpDir) teardown (const action)
where
setup tmpDir = do
outer <- getCurrentDirectory
setCurrentDirectory tmpDir
createDirectory "static"
writeFile "static/foo.txt" "bar"
writeFile "static/index.html" "index"
return outer
teardown outer = do
setCurrentDirectory outer
spec :: Spec
spec = do
around_ withStaticFiles $ with (return app) $ do
describe "serveDirectory" $ do
it "successfully serves files" $ do
get "/static/foo.txt" `shouldRespondWith` "bar"
it "serves the contents of index.html when requesting the root of a directory" $ do
get "/static/" `shouldRespondWith` "index"