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

This example Akka source code file (PinnedActorSpec.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, concurrent, defaulttimeout, dispatch, failure, hello, oneway, pinnedactorspec, pinneddispatcher, test, testactor, testing, testkit, world

The PinnedActorSpec.scala Akka example source code

package akka.actor.dispatch

import java.util.concurrent.{ CountDownLatch, TimeUnit }

import akka.testkit._
import akka.actor.{ Props, Actor }
import akka.testkit.AkkaSpec
import org.scalatest.BeforeAndAfterEach
import akka.dispatch.{ PinnedDispatcher, Dispatchers }
import scala.concurrent.Await
import akka.pattern.ask

object PinnedActorSpec {
  val config = """
    pinned-dispatcher {
      executor = thread-pool-executor
      type = PinnedDispatcher
    }
    """

  class TestActor extends Actor {
    def receive = {
      case "Hello"   ⇒ sender() ! "World"
      case "Failure" ⇒ throw new RuntimeException("Expected exception; to test fault-tolerance")
    }
  }
}

@org.junit.runner.RunWith(classOf[org.scalatest.junit.JUnitRunner])
class PinnedActorSpec extends AkkaSpec(PinnedActorSpec.config) with BeforeAndAfterEach with DefaultTimeout {
  import PinnedActorSpec._

  private val unit = TimeUnit.MILLISECONDS

  "A PinnedActor" must {

    "support tell" in {
      var oneWay = new CountDownLatch(1)
      val actor = system.actorOf(Props(new Actor { def receive = { case "OneWay" ⇒ oneWay.countDown() } }).withDispatcher("pinned-dispatcher"))
      val result = actor ! "OneWay"
      assert(oneWay.await(1, TimeUnit.SECONDS))
      system.stop(actor)
    }

    "support ask/reply" in {
      val actor = system.actorOf(Props[TestActor].withDispatcher("pinned-dispatcher"))
      assert("World" === Await.result(actor ? "Hello", timeout.duration))
      system.stop(actor)
    }
  }
}