gRPC-haskell/tests/LowLevelTests/Op.hs
Connor Clark a530faf912 Channel options: user agents and compression (#32)
* get_peer: fix todo

* add documentation for server registered call function

* test roundtrip conversion of larger bytestrings (32 mb)

* Add channel args interface: currently supports user agents and compression.

* fix build failure after stack clean
2016-06-22 13:07:38 -07:00

104 lines
4 KiB
Haskell

{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
module LowLevelTests.Op where
import Control.Concurrent (threadDelay)
import Control.Concurrent.Async
import Control.Monad
import Data.ByteString (ByteString, isPrefixOf)
import qualified Data.Map as M
import Foreign.Storable (peek)
import Test.Tasty
import Test.Tasty.HUnit as HU (testCase, (@?=),
assertBool)
import Network.GRPC.LowLevel
import Network.GRPC.LowLevel.Call
import Network.GRPC.LowLevel.Client
import Network.GRPC.LowLevel.Server
import Network.GRPC.LowLevel.Op
import Network.GRPC.LowLevel.CompletionQueue
lowLevelOpTests :: TestTree
lowLevelOpTests = testGroup "Synchronous unit tests of low-level Op interface"
[testCancelWhileHandling
,testCancelFromServer]
testCancelWhileHandling :: TestTree
testCancelWhileHandling =
testCase "Client/Server - cancel after handler starts does nothing" $
runSerialTest $ \grpc ->
withClientServerUnaryCall grpc $
\(c@Client{..}, s@Server{..}, cc@ClientCall{..}, sc@ServerCall{..}) -> do
withOpArrayAndCtxts serverEmptyRecvOps $ \(opArray, ctxts) -> do
tag <- newTag serverCQ
startBatch serverCQ unServerCall opArray 3 tag
pluck serverCQ tag (Just 1)
let (OpRecvCloseOnServerContext pcancelled) = last ctxts
cancelledBefore <- peek pcancelled
cancelledBefore @?= 0
clientCallCancel cc
threadDelay 1000000
cancelledAfter <- peek pcancelled
cancelledAfter @?= 0
return $ Right ()
testCancelFromServer :: TestTree
testCancelFromServer =
testCase "Client/Server - client receives server cancellation" $
runSerialTest $ \grpc ->
withClientServerUnaryCall grpc $
\(c@Client{..}, s@Server{..}, cc@ClientCall{..}, sc@ServerCall{..}) -> do
serverCallCancel sc StatusPermissionDenied "TestStatus"
clientRes <- runOps unClientCall clientCQ clientRecvOps
case clientRes of
Left x -> error $ "Client recv error: " ++ show x
Right [_,_,OpRecvStatusOnClientResult _ code details] -> do
code @?= StatusPermissionDenied
assertBool "Received status details or RST_STREAM error" $
details == "TestStatus"
||
isPrefixOf "Received RST_STREAM" details
return $ Right ()
runSerialTest :: (GRPC -> IO (Either GRPCIOError ())) -> IO ()
runSerialTest f =
withGRPC f >>= \case Left x -> error $ show x
Right () -> return ()
withClientServerUnaryCall :: GRPC
-> ((Client, Server, ClientCall, ServerCall)
-> IO (Either GRPCIOError a))
-> IO (Either GRPCIOError a)
withClientServerUnaryCall grpc f = do
withClient grpc clientConf $ \c -> do
crm <- clientRegisterMethod c "/foo" Normal
withServer grpc serverConf $ \s ->
withClientCall c crm 10 $ \cc -> do
let srm = head (registeredMethods s)
-- NOTE: We need to send client ops here or else `withServerCall` hangs,
-- because registered methods try to do recv ops immediately when
-- created. If later we want to send payloads or metadata, we'll need
-- to tweak this.
clientRes <- runOps (unClientCall cc) (clientCQ c) clientEmptySendOps
withServerCall s srm $ \sc ->
f (c, s, cc, sc)
serverConf = ServerConfig "localhost" 50051 [("/foo", Normal)] []
clientConf = ClientConfig "localhost" 50051 []
clientEmptySendOps = [OpSendInitialMetadata mempty,
OpSendMessage "",
OpSendCloseFromClient]
clientRecvOps = [OpRecvInitialMetadata,
OpRecvMessage,
OpRecvStatusOnClient]
serverEmptyRecvOps = [OpSendInitialMetadata mempty,
OpRecvMessage,
OpRecvCloseOnServer]