streaming/src/test/scala/org/apache/gearpump/streaming/executor/TaskLauncherSpec.scala

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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.gearpump.streaming.executor

import scala.concurrent.Await
import scala.concurrent.duration.Duration

import akka.actor.{Actor, ActorSystem}
import akka.testkit.TestProbe
import org.scalatest._

import org.apache.gearpump.cluster.{TestUtil, UserConfig}
import org.apache.gearpump.serializer.SerializationFramework
import org.apache.gearpump.streaming.ProcessorDescription
import org.apache.gearpump.streaming.executor.TaskLauncher.TaskArgument
import org.apache.gearpump.streaming.executor.TaskLauncherSpec.{MockTask, MockTaskActor}
import org.apache.gearpump.streaming.task.{Task, TaskContext, TaskContextData, TaskId, TaskWrapper}

class TaskLauncherSpec extends FlatSpec with Matchers with BeforeAndAfterAll {
  val appId = 0
  val executorId = 0
  var appMaster: TestProbe = null
  implicit var system: ActorSystem = null
  val userConf = UserConfig.empty

  override def beforeAll(): Unit = {
    system = ActorSystem("TaskLauncherSpec", TestUtil.DEFAULT_CONFIG)
    appMaster = TestProbe()
  }

  override def afterAll(): Unit = {
    system.terminate()
    Await.result(system.whenTerminated, Duration.Inf)
  }

  it should "able to launch tasks" in {
    val launcher = new TaskLauncher(appId, "app", executorId, appMaster.ref,
      userConf, classOf[MockTaskActor])
    val taskIds = List(TaskId(0, 0), TaskId(0, 1))
    val processor = ProcessorDescription(id = 0, taskClass = classOf[MockTask].getName,
      parallelism = 2)
    val argument = TaskArgument(0, processor, null)

    val tasks = launcher.launch(taskIds, argument, system, null,
      "gearpump.shared-thread-pool-dispatcher")
    tasks.keys.toSet shouldBe taskIds.toSet
  }
}

object TaskLauncherSpec {
  class MockTaskActor(
      val taskId: TaskId,
      val taskContextData : TaskContextData,
      userConf : UserConfig,
      val task: TaskWrapper,
      serializer: SerializationFramework) extends Actor {
    def receive: Receive = null
  }

  class MockTask(taskContext: TaskContext, userConf: UserConfig)
    extends Task(taskContext, userConf) {
  }
}