func TestExecutorDriverError(t *testing.T) {
	setTestEnv(t)
	ch := make(chan bool, 2)
	// Mock Slave process to respond to registration event.
	server := testutil.NewMockSlaveHttpServer(t, func(rsp http.ResponseWriter, req *http.Request) {
		reqPath, err := url.QueryUnescape(req.URL.String())
		assert.NoError(t, err)
		log.Infoln("RCVD request", reqPath)
		rsp.WriteHeader(http.StatusAccepted)
	})

	exec := newTestExecutor(t)
	exec.ch = ch
	exec.t = t

	driver := newIntegrationTestDriver(t, exec)
	server.Close() // will cause error
	// Run() cause async message processing to start
	// Therefore, error-handling will be done via Executor.Error callaback.
	stat, err := driver.Run()
	assert.NoError(t, err)
	assert.Equal(t, mesos.Status_DRIVER_STOPPED, stat)

	select {
	case <-ch:
	case <-time.After(time.Second * 1):
		log.Errorf("Tired of waiting...")
	}
}
func TestExecutorDriverRunTaskEvent(t *testing.T) {
	setTestEnv(t)
	ch := make(chan bool, 2)
	// Mock Slave process to respond to registration event.
	server := testutil.NewMockSlaveHttpServer(t, func(rsp http.ResponseWriter, req *http.Request) {
		reqPath, err := url.QueryUnescape(req.URL.String())
		assert.NoError(t, err)
		log.Infoln("RCVD request", reqPath)
		rsp.WriteHeader(http.StatusAccepted)
	})

	defer server.Close()

	exec := newTestExecutor(t)
	exec.ch = ch
	exec.t = t

	// start
	driver := newIntegrationTestDriver(t, exec)
	stat, err := driver.Start()
	assert.NoError(t, err)
	assert.Equal(t, mesos.Status_DRIVER_RUNNING, stat)
	driver.setConnected(true)
	defer driver.Stop()

	// send runtask event to driver
	pbMsg := &mesos.RunTaskMessage{
		FrameworkId: util.NewFrameworkID(frameworkID),
		Framework: util.NewFrameworkInfo(
			"test", "test-framework-001", util.NewFrameworkID(frameworkID),
		),
		Pid: proto.String(server.PID.String()),
		Task: util.NewTaskInfo(
			"test-task",
			util.NewTaskID("test-task-001"),
			util.NewSlaveID(slaveID),
			[]*mesos.Resource{
				util.NewScalarResource("mem", 112),
				util.NewScalarResource("cpus", 2),
			},
		),
	}

	c := testutil.NewMockMesosClient(t, server.PID)
	c.SendMessage(driver.self, pbMsg)

	select {
	case <-ch:
	case <-time.After(time.Second * 2):
		log.Errorf("Tired of waiting...")
	}

}
func TestExecutorDriverReconnectEvent(t *testing.T) {
	setTestEnv(t)
	ch := make(chan bool, 2)
	// Mock Slave process to respond to registration event.
	server := testutil.NewMockSlaveHttpServer(t, func(rsp http.ResponseWriter, req *http.Request) {
		reqPath, err := url.QueryUnescape(req.URL.String())
		assert.NoError(t, err)
		log.Infoln("RCVD request", reqPath)

		// exec registration request
		if strings.Contains(reqPath, "RegisterExecutorMessage") {
			log.Infoln("Got Executor registration request")
		}

		if strings.Contains(reqPath, "ReregisterExecutorMessage") {
			log.Infoln("Got Executor Re-registration request")
			ch <- true
		}

		rsp.WriteHeader(http.StatusAccepted)
	})

	defer server.Close()

	exec := newTestExecutor(t)
	exec.t = t

	// start
	driver := newIntegrationTestDriver(t, exec)
	stat, err := driver.Start()
	assert.NoError(t, err)
	assert.Equal(t, mesos.Status_DRIVER_RUNNING, stat)
	driver.setConnected(true)
	defer driver.Stop()

	// send "reconnect" event to driver
	pbMsg := &mesos.ReconnectExecutorMessage{
		SlaveId: util.NewSlaveID(slaveID),
	}
	c := testutil.NewMockMesosClient(t, server.PID)
	c.SendMessage(driver.self, pbMsg)

	select {
	case <-ch:
	case <-time.After(time.Second * 2):
		log.Errorf("Tired of waiting...")
	}

}
func TestExecutorDriverRegisterExecutorMessage(t *testing.T) {
	setTestEnv(t)
	ch := make(chan bool, 2)
	server := testutil.NewMockSlaveHttpServer(t, func(rsp http.ResponseWriter, req *http.Request) {
		reqPath, err := url.QueryUnescape(req.URL.String())
		assert.NoError(t, err)
		log.Infoln("RCVD request", reqPath)

		data, err := ioutil.ReadAll(req.Body)
		if err != nil {
			t.Fatalf("Missing RegisteredExecutor data from scheduler.")
		}
		defer req.Body.Close()

		message := new(mesos.RegisterExecutorMessage)
		err = proto.Unmarshal(data, message)
		assert.NoError(t, err)
		assert.Equal(t, frameworkID, message.GetFrameworkId().GetValue())
		assert.Equal(t, executorID, message.GetExecutorId().GetValue())

		ch <- true

		rsp.WriteHeader(http.StatusAccepted)
	})

	defer server.Close()

	exec := newTestExecutor(t)
	exec.ch = ch

	driver := newIntegrationTestDriver(t, exec)
	assert.False(t, driver.Running())

	stat, err := driver.Start()
	assert.NoError(t, err)
	assert.True(t, driver.Running())
	assert.Equal(t, mesos.Status_DRIVER_RUNNING, stat)

	select {
	case <-ch:
	case <-time.After(time.Second * 1):
		log.Errorf("Tired of waiting...")
	}
}
func TestExecutorDriverFrameworkToExecutorMessageEvent(t *testing.T) {
	setTestEnv(t)
	ch := make(chan bool, 2)
	// Mock Slave process to respond to registration event.
	server := testutil.NewMockSlaveHttpServer(t, func(rsp http.ResponseWriter, req *http.Request) {
		reqPath, err := url.QueryUnescape(req.URL.String())
		assert.NoError(t, err)
		log.Infoln("RCVD request", reqPath)
		rsp.WriteHeader(http.StatusAccepted)
	})

	defer server.Close()

	exec := newTestExecutor(t)
	exec.ch = ch
	exec.t = t

	// start
	driver := newIntegrationTestDriver(t, exec)
	stat, err := driver.Start()
	assert.NoError(t, err)
	assert.Equal(t, mesos.Status_DRIVER_RUNNING, stat)
	driver.setConnected(true)
	defer driver.Stop()

	// send runtask event to driver
	pbMsg := &mesos.FrameworkToExecutorMessage{
		SlaveId:     util.NewSlaveID(slaveID),
		ExecutorId:  util.NewExecutorID(executorID),
		FrameworkId: util.NewFrameworkID(frameworkID),
		Data:        []byte("Hello-Test"),
	}

	c := testutil.NewMockMesosClient(t, server.PID)
	c.SendMessage(driver.self, pbMsg)

	select {
	case <-ch:
	case <-time.After(time.Second * 1):
		log.Errorf("Tired of waiting...")
	}
}
func TestExecutorDriverExecutorRegisteredEvent(t *testing.T) {
	setTestEnv(t)
	ch := make(chan bool, 2)
	// Mock Slave process to respond to registration event.
	server := testutil.NewMockSlaveHttpServer(t, func(rsp http.ResponseWriter, req *http.Request) {
		reqPath, err := url.QueryUnescape(req.URL.String())
		assert.NoError(t, err)
		log.Infoln("RCVD request", reqPath)
		rsp.WriteHeader(http.StatusAccepted)
	})

	defer server.Close()

	exec := newTestExecutor(t)
	exec.ch = ch
	exec.t = t

	// start
	driver := newIntegrationTestDriver(t, exec)
	stat, err := driver.Start()
	assert.NoError(t, err)
	assert.Equal(t, mesos.Status_DRIVER_RUNNING, stat)
	defer driver.Stop()

	//simulate sending ExecutorRegisteredMessage from server to exec pid.
	pbMsg := &mesos.ExecutorRegisteredMessage{
		ExecutorInfo:  util.NewExecutorInfo(util.NewExecutorID(executorID), util.NewCommandInfo("ls -l")),
		FrameworkId:   util.NewFrameworkID(frameworkID),
		FrameworkInfo: util.NewFrameworkInfo("test", "test-framework", util.NewFrameworkID(frameworkID)),
		SlaveId:       util.NewSlaveID(slaveID),
		SlaveInfo:     &mesos.SlaveInfo{Hostname: proto.String("localhost")},
	}
	c := testutil.NewMockMesosClient(t, server.PID)
	connected := driver.connectionListener()
	c.SendMessage(driver.self, pbMsg)
	select {
	case <-connected:
	case <-time.After(time.Second * 1):
		log.Errorf("Tired of waiting...")
	}
}
func TestExecutorDriverShutdownEvent(t *testing.T) {
	setTestEnv(t)
	ch := make(chan bool, 2)
	// Mock Slave process to respond to registration event.
	server := testutil.NewMockSlaveHttpServer(t, func(rsp http.ResponseWriter, req *http.Request) {
		reqPath, err := url.QueryUnescape(req.URL.String())
		assert.NoError(t, err)
		log.Infoln("RCVD request", reqPath)
		rsp.WriteHeader(http.StatusAccepted)
	})

	defer server.Close()

	exec := newTestExecutor(t)
	exec.ch = ch
	exec.t = t

	// start
	driver := newIntegrationTestDriver(t, exec)
	stat, err := driver.Start()
	assert.NoError(t, err)
	assert.Equal(t, mesos.Status_DRIVER_RUNNING, stat)
	driver.setConnected(true)

	// send runtask event to driver
	pbMsg := &mesos.ShutdownExecutorMessage{}

	c := testutil.NewMockMesosClient(t, server.PID)
	c.SendMessage(driver.self, pbMsg)

	select {
	case <-ch:
	case <-time.After(time.Second * 5):
		log.Errorf("Tired of waiting...")
	}

	<-time.After(time.Second * 1) // wait for shutdown to finish.
	assert.Equal(t, mesos.Status_DRIVER_STOPPED, driver.Status())
}
func TestExecutorDriverStatusUpdateAcknowledgement(t *testing.T) {
	setTestEnv(t)
	ch := make(chan bool, 2)
	// Mock Slave process to respond to registration event.
	server := testutil.NewMockSlaveHttpServer(t, func(rsp http.ResponseWriter, req *http.Request) {
		reqPath, err := url.QueryUnescape(req.URL.String())
		assert.NoError(t, err)
		log.Infoln("RCVD request", reqPath)
		rsp.WriteHeader(http.StatusAccepted)
	})

	defer server.Close()

	exec := newTestExecutor(t)
	exec.ch = ch
	exec.t = t

	// start
	driver := newIntegrationTestDriver(t, exec)
	stat, err := driver.Start()
	assert.NoError(t, err)
	assert.Equal(t, mesos.Status_DRIVER_RUNNING, stat)
	driver.setConnected(true)
	defer driver.Stop()

	// send ACK from server
	pbMsg := &mesos.StatusUpdateAcknowledgementMessage{
		SlaveId:     util.NewSlaveID(slaveID),
		FrameworkId: util.NewFrameworkID(frameworkID),
		TaskId:      util.NewTaskID("test-task-001"),
		Uuid:        []byte(uuid.NewRandom().String()),
	}

	c := testutil.NewMockMesosClient(t, server.PID)
	c.SendMessage(driver.self, pbMsg)
	<-time.After(time.Second * 1)
}