Akka/Scala example source code file (Ticket669Spec.scala)

This example Akka source code file (Ticket669Spec.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Akka and Scala source code examples by using tags.

All credit for the original source code belongs to akka.io; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Akka tags/keywords

a, actor, akka, akkaspec, allforonestrategy, beforeandafterall, concurrent, defaulttimeout, implicitsender, permanent, supervisor, test, testing, testkit, ticket669spec, time

The Ticket669Spec.scala Akka example source code

/**
 * Copyright (C) 2009-2014 Typesafe Inc. <http://www.typesafe.com>
 */
package akka.actor

import language.postfixOps

import java.util.concurrent.{ CountDownLatch, TimeUnit }
import akka.actor._
import org.scalatest.BeforeAndAfterAll
import akka.testkit.{ TestKit, filterEvents, EventFilter }
import akka.testkit.AkkaSpec
import akka.testkit.ImplicitSender
import akka.testkit.DefaultTimeout
import scala.concurrent.Await
import akka.pattern.ask
import scala.concurrent.duration._

@org.junit.runner.RunWith(classOf[org.scalatest.junit.JUnitRunner])
class Ticket669Spec extends AkkaSpec with BeforeAndAfterAll with ImplicitSender with DefaultTimeout {
  import Ticket669Spec._

  // TODO: does this really make sense?
  override def atStartup() {
    Thread.interrupted() //remove interrupted status.
  }

  "A supervised actor with lifecycle PERMANENT" should {
    "be able to reply on failure during preRestart" in {
      filterEvents(EventFilter[Exception]("test", occurrences = 1)) {
        val supervisor = system.actorOf(Props(new Supervisor(
          AllForOneStrategy(5, 10 seconds)(List(classOf[Exception])))))
        val supervised = Await.result((supervisor ? Props[Supervised]).mapTo[ActorRef], timeout.duration)

        supervised.!("test")(testActor)
        expectMsg("failure1")
        system.stop(supervisor)
      }
    }

    "be able to reply on failure during postStop" in {
      filterEvents(EventFilter[Exception]("test", occurrences = 1)) {
        val supervisor = system.actorOf(Props(new Supervisor(
          AllForOneStrategy(maxNrOfRetries = 0)(List(classOf[Exception])))))
        val supervised = Await.result((supervisor ? Props[Supervised]).mapTo[ActorRef], timeout.duration)

        supervised.!("test")(testActor)
        expectMsg("failure2")
        system.stop(supervisor)
      }
    }
  }
}

object Ticket669Spec {
  class Supervised extends Actor {
    def receive = {
      case msg ⇒ throw new Exception("test")
    }

    override def preRestart(reason: scala.Throwable, msg: Option[Any]) {
      sender() ! "failure1"
    }

    override def postStop() {
      sender() ! "failure2"
    }
  }
}