servant/servant-server/test/Servant/Server/Internal/RoutingApplicationSpec.hs
2017-01-12 02:58:29 +01:00

51 lines
1.8 KiB
Haskell

module Servant.Server.Internal.RoutingApplicationSpec (spec) where
import Control.Exception hiding (Handler)
import Control.Monad.IO.Class
import Servant.Server
import Servant.Server.Internal.RoutingApplication
import System.Directory
import Test.Hspec
ok :: IO (RouteResult ())
ok = return (Route ())
delayed :: DelayedIO () -> RouteResult (Handler ()) -> Delayed () (Handler ())
delayed body srv = Delayed
{ capturesD = \() -> DelayedIO $ \_req _cl -> ok
, methodD = DelayedIO $ \_req_ _cl -> ok
, authD = DelayedIO $ \_req _cl -> ok
, bodyD = do
liftIO (writeFile "delayed.test" "hia")
addCleanup (removeFile "delayed.test" >> putStrLn "file removed")
body
, serverD = \() () _body _req -> srv
}
simpleRun :: Delayed () (Handler ())
-> IO ()
simpleRun d = fmap (either ignoreE id) . try $
runAction d () undefined (\_ -> return ()) (\_ -> FailFatal err500)
where ignoreE :: SomeException -> ()
ignoreE = const ()
spec :: Spec
spec = do
describe "Delayed" $ do
it "actually runs clean up actions" $ do
_ <- simpleRun $ delayed (return ()) (Route $ return ())
fileStillThere <- doesFileExist "delayed.test"
fileStillThere `shouldBe` False
it "even with exceptions in serverD" $ do
_ <- simpleRun $ delayed (return ()) (Route $ throw DivideByZero)
fileStillThere <- doesFileExist "delayed.test"
fileStillThere `shouldBe` False
it "even with routing failure in bodyD" $ do
_ <- simpleRun $ delayed (delayedFailFatal err500) (Route $ return ())
fileStillThere <- doesFileExist "delayed.test"
fileStillThere `shouldBe` False
it "even with exceptions in bodyD" $ do
_ <- simpleRun $ delayed (liftIO $ throwIO DivideByZero) (Route $ return ())
fileStillThere <- doesFileExist "delayed.test"
fileStillThere `shouldBe` False