You'll need to either use a test framework which can deal with async tests
or you'll have to wait for the result and perform the assertion at the end
of each test.
--
Cheers,
√
On 3 Apr 2015 00:21, "Allen Nie" <aiming...@gmail.com> wrote:
> Thank you Viktor!! I tried to switch from test to App, and it works. Also
> it works with Map instead of MapAsync.
>
> Does this mean I can not test this kind of things anymore? Is there
> anything I can do to still make the test case work??
>
> Sincerely,
> Allen
>
> On Thursday, April 2, 2015 at 6:04:24 PM UTC-4, √ wrote:
>
>> I suspect your problem is that your test exits before the stream has a
>> chance to run.
>>
>> On Thu, Apr 2, 2015 at 11:56 PM, Viktor Klang <viktor...@gmail.com>
>> wrote:
>>
>>> Works on my machine:
>>>
>>> scala> import scala.collection.mutable.ArrayBuffer
>>> import scala.collection.mutable.ArrayBuffer
>>>
>>> scala> import akka.stream._
>>> import akka.stream._
>>>
>>> scala> import akka.stream.scaladsl._
>>> import akka.stream.scaladsl._
>>>
>>> scala> implicit val sys = ActorSystem("repl")
>>> sys: akka.actor.ActorSystem = akka://repl
>>>
>>> scala> import sys.dispatcher
>>> import sys.dispatcher
>>>
>>> scala> implicit val fm = ActorFlowMaterializer()
>>> fm: akka.stream.ActorFlowMaterializer = ActorFlowMaterializerImpl(
>>> ActorFlowMaterializerSettings(4,16,,<function1>,
>>> StreamSubscriptionTimeoutSettings(CancelTermination,5000
>>> milliseconds),false,1000,Optimizations(false,false,
>>> false,false)),akka.dispatch.Dispatchers@3dff9cf6,Actor[
>>> akka://repl/user/$b#575469743],1,flow,Optimizations(false,
>>> false,false,false))
>>>
>>> scala> val source: Source[Int, Unit] = Source(1 to 10)
>>> source: akka.stream.scaladsl.Source[Int,Unit] =
>>> akka.stream.scaladsl.Source@4d8aca2f
>>>
>>> scala> val printSink = Sink.foreach[Int](println)
>>> printSink: akka.stream.scaladsl.Sink[Int,scala.concurrent.Future[Unit]]
>>> = akka.stream.scaladsl.Sink@7d6cac88
>>>
>>>
>>> scala> val actionStream: ArrayBuffer[(Int) => Int] =
>>> ArrayBuffer.empty[(Int) => Int]
>>> actionStream: scala.collection.mutable.ArrayBuffer[Int => Int] =
>>> ArrayBuffer()
>>>
>>> scala> def add(a: Int) = a + 1
>>> add: (a: Int)Int
>>>
>>> scala>
>>>
>>> scala> def exec(): Unit =
>>> | actionStream.drop(1).foldLeft(source)(
>>> | (source, action) => source.via(Flow[Int].mapAsync(e =>
>>> Future(action(e))))
>>> | ).runWith(printSink)
>>> exec: ()Unit
>>>
>>> scala>
>>>
>>> scala> actionStream += add
>>> res6: actionStream.type = ArrayBuffer(<function1>)
>>>
>>> scala> actionStream += add
>>> res7: actionStream.type = ArrayBuffer(<function1>, <function1>)
>>>
>>> scala> exec()
>>>
>>> scala> 2
>>> 3
>>> 4
>>> 5
>>> 6
>>> 7
>>> 8
>>> 9
>>> 10
>>> 11
>>>
>>> On Thu, Apr 2, 2015 at 11:29 PM, Allen Nie <aimi...@gmail.com> wrote:
>>>
>>>> I came up a much simplified program to test, and I still get nothing:
>>>>
>>>> val source: Source[Int, Unit] = Source(1 to 10)
>>>> val printSink = Sink.foreach[Int](e => println(e))
>>>>
>>>> val actionStream: ArrayBuffer[(Int) => Int] = ArrayBuffer.empty[(Int) =>
>>>> Int]
>>>>
>>>> def add(a: Int) = a + 1
>>>>
>>>> def exec(): Unit = {
>>>> val sourceReady = actionStream.drop(1).foldLeft(source)
>>>> {(source, action) =>
>>>> source.via(Flow[Int].mapAsync(e => Future(action.apply(e))))
>>>> }
>>>>
>>>> sourceReady
>>>>
>>>> sourceReady.runWith(printSink)
>>>> }
>>>>
>>>> "parallel test" should "work" in {
>>>> actionStream += ((a: Int) => add(a))
>>>> actionStream += ((a: Int) => add(a))
>>>>
>>>> exec()
>>>> }
>>>>
>>>> --
>>>> >>>>>>>>>> Read the docs: http://akka.io/docs/
>>>> >>>>>>>>>> Check the FAQ: http://doc.akka.io/docs/akka/
>>>> current/additional/faq.html
>>>> >>>>>>>>>> Search the archives: https://groups.google.com/
>>>> group/akka-user
>>>> ---
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>>>> For more options, visit https://groups.google.com/d/optout.
>>>>
>>>
>>>
>>>
>>> --
>>> Cheers,
>>> √
>>>
>>
>>
>>
>> --
>> Cheers,
>> √
>>
> --
> >>>>>>>>>> Read the docs: http://akka.io/docs/
> >>>>>>>>>> Check the FAQ:
> http://doc.akka.io/docs/akka/current/additional/faq.html
> >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user
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--
>>>>>>>>>> Read the docs: http://akka.io/docs/
>>>>>>>>>> Check the FAQ:
>>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html
>>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user
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