Files
simplexmq/tests/SMPClient.hs
2020-10-17 19:42:15 +01:00

60 lines
1.7 KiB
Haskell

{-# LANGUAGE BlockArguments #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE ScopedTypeVariables #-}
module SMPClient where
import Control.Monad.IO.Unlift
import Crypto.Random
import Env.STM
import Network.Socket
import Server
import Transmission
import Transport
import UnliftIO.Concurrent
import qualified UnliftIO.Exception as E
import UnliftIO.IO
testHost :: HostName
testHost = "localhost"
testPort :: ServiceName
testPort = "5000"
testSMPClient :: MonadUnliftIO m => (Handle -> m a) -> m a
testSMPClient client = do
threadDelay 5000 -- TODO hack: thread delay for SMP server to start
runTCPClient testHost testPort $ \h -> do
line <- getLn h
if line == "Welcome to SMP"
then client h
else error "not connected"
cfg :: Config
cfg =
Config
{ tcpPort = testPort,
queueSize = 1,
connIdBytes = 12,
msgIdBytes = 6
}
withSmpServer :: (MonadUnliftIO m, MonadRandom m) => m a -> m a
withSmpServer = E.bracket (forkIO $ runSMPServer cfg) (liftIO . killThread) . const
runSmpTest :: (MonadUnliftIO m, MonadRandom m) => (Handle -> m a) -> m a
runSmpTest test = withSmpServer $ testSMPClient test
runSmpTestN :: forall m a. (MonadUnliftIO m, MonadRandom m) => Int -> ([Handle] -> m a) -> m a
runSmpTestN nClients test = withSmpServer $ run [] nClients
where
run :: [Handle] -> Int -> m a
run hs 0 = test hs
run hs n = testSMPClient $ \h -> run (h : hs) (n - 1)
smpServerTest :: [RawTransmission] -> IO [RawTransmission]
smpServerTest commands = runSmpTest \h -> mapM (sendReceive h) commands
where
sendReceive :: Handle -> RawTransmission -> IO RawTransmission
sendReceive h t = tPutRaw h t >> either (error "bad transmission") id <$> tGetRaw h