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module Test.Hspec.Core.Runner.JobQueueSpec (spec) where
import Prelude ()
import Helper
import Control.Concurrent
import Test.Hspec.Core.Runner.JobQueue
spec :: Spec
spec = do
describe "enqueueJob" $ do
let
waitFor job = job (\ _ -> pass) >>= either throwIO return
context "with Sequential" $ do
it "runs actions sequentially" $ do
withJobQueue 10 $ \ queue -> do
ref <- newIORef []
jobA <- enqueueJob queue Sequential $ \ _ -> modifyIORef ref (23 :)
jobB <- enqueueJob queue Sequential $ \ _ -> modifyIORef ref (42 :)
waitFor jobB
readIORef ref `shouldReturn` [42 :: Int]
waitFor jobA
readIORef ref `shouldReturn` [23, 42]
context "with Concurrent" $ do
it "runs actions concurrently" $ do
withJobQueue 10 $ \ queue -> do
barrierA <- newEmptyMVar
barrierB <- newEmptyMVar
jobA <- enqueueJob queue Concurrent $ \ _ -> do
putMVar barrierB ()
takeMVar barrierA
jobB <- enqueueJob queue Concurrent $ \ _ -> do
putMVar barrierA ()
takeMVar barrierB
timeout (0.1 :: Seconds) $ do
waitFor jobA
waitFor jobB
`shouldReturn` Just ()
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