I am also seeing this message in my log (though I am not using the
TestActorRef). Similar to your test, I have a actor which monitors a child
and kills itself when the child terminated. Though it doesn't seem to be
harmful, but it's quite annoying. Wonder what's the cause and how to get
rid of it.
--Jiunjiun
On Thursday, March 6, 2014 2:18:11 PM UTC-8, Jonas K wrote:
>
> I'm writing tests for an actor that monitors a child actor. If the child
> actor dies, the monitor also stops.
> Since upgrading to Akka-2.2, I get a warning message when running the test
> (most of the time...):
>
> [default-akka.actor.default-dispatcher-2] [akka://default/user/Monitor]
> Message [akka.dispatch.sysmsg.DeathWatchNotification] from
> TestActor[akka://default/user/Monitor] to
> TestActor[akka://default/user/Monitor] was not delivered. [1] dead letters
> encountered.
>
> I'm wondering why the actor appears to be sending a DeathWatchNotification
> to itself, and why it is not delivered, since the test itself checks that
> the actor dies.
>
> The test code:
>
> "monitor the quick and the dead" in new ActorSystemContext {
> val monitor = TestProbe()
> val a = TestActorRef(new MonitoringActor, "Monitor")
> monitor.watch(a)
> a ! "hi!"
> monitor.expectTerminated(a)
> }
>
> The actors (minimal versions of actual code):
>
> class DyingActor extends Actor {
> def receive = {
> case _ => context.stop(self)
> }
> }
> class MonitoringActor extends Actor {
> def receive = {
> case Terminated(a) => context.stop(self)
> case _ => {
> val dyingActor = context.actorOf(Props(new DyingActor))
> context.watch(dyingActor)
>
> dyingActor ! "hi"
> }
> }
> }
>
>
>
>
>
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