playframework - Testing play controller's interaction with an akka actor -

my play application uses akka actor handle long running computation:

class mycontroller(myactor : actorref) extends controller{   def dostuff = action { implicit request =>      val response : future[any] = myactor ? dostuff      async{       response.map{                 str : string => ok(str)       }     }   } } 

i trying test things working properly. have separate tests checking actor behaves , want check controller sends right msgs actor. current approach kind of this:

class mycontrollerspec extends specification{   "mycontroller" should {      object dummyactor extends actor{       def receive = {         case _ => ()       }     }      "do stuff properly" >> {        val probe = testprobe()(akka.system)        val test = new controllers.mycontroller(akka.system.actorof(props(dummyactor))        val result = test.dostuff(fakerequest())        probe.expectmsg(somemsg)     }   } } 

the controller send message passed in actor when dostuff action called. trying verify right msg sent.

i think test.dostuff run synchronously , times out when dummy actor doesn't send anything. expectmsg doesn't start until after dostuff call returns , somemsg sent. how can solve problem?

isn't want pass probe controller rather dummy actor implementation, how sent probe if not?