return (*attacherDefaults)(a).Attach(spec, hostName)
	} else if err != nil {
		return "", err
	}
	return status.DevicePath, err
}

// WaitForAttach is part of the volume.Attacher interface
func (a *flexVolumeAttacher) WaitForAttach(spec *volume.Spec, devicePath string, _ *v1.Pod, timeout time.Duration) (string, error) {
	call := a.plugin.NewDriverCallWithTimeout(waitForAttachCmd, timeout)
	call.Append(devicePath)

	return "", nil
}

// WaitForAttach is part of the volume.Attacher interface
func (a *attacherDefaults) WaitForAttach(spec *volume.Spec, devicePath string, timeout time.Duration) (string, error) {
	klog.Warning(logPrefix(a.plugin.flexVolumePlugin), "using default WaitForAttach for volume ", spec.Name(), ", device ", devicePath)
	return devicePath, nil
}

	plugin, _ := testPlugin(t)
	plugin.runner = fakeRunner(
		assertDriverCall(t, notSupportedOutput(), waitForAttachCmd, "/dev/sdx",
			specJSON(plugin, spec, nil)),
	)

	a, _ := plugin.NewAttacher()
	a.WaitForAttach(spec, "/dev/sdx", pod, 1*time.Second)
}

func TestMountDevice(tt *testing.T) {
	t := harness.For(tt)
	defer t.Close()

	spec := fakeVolumeSpec()

	plugin, rootDir := testPlugin(t)

	volumesAttachedCheck := make(map[*volume.Spec]bool)
	for _, spec := range specs {
		volumesAttachedCheck[spec] = true
	}

	return volumesAttachedCheck, nil
}

func (attacher *iscsiAttacher) WaitForAttach(spec *volume.Spec, devicePath string, pod *v1.Pod, timeout time.Duration) (string, error) {
	mounter, err := volumeSpecToMounter(spec, attacher.host, attacher.targetLocks, pod)
	if err != nil {

)

const (
	// Driver calls
	initCmd          = "init"
	getVolumeNameCmd = "getvolumename"

	isAttached = "isattached"

	attachCmd        = "attach"
	waitForAttachCmd = "waitforattach"
	mountDeviceCmd   = "mountdevice"

	detachCmd        = "detach"
	unmountDeviceCmd = "unmountdevice"

	mountCmd   = "mount"
	unmountCmd = "unmount"

	expandVolumeCmd = "expandvolume"

	volumesAttachedCheck := make(map[*volume.Spec]bool)
	for _, spec := range specs {
		volumesAttachedCheck[spec] = true
	}

	return volumesAttachedCheck, nil
}

func (attacher *fcAttacher) WaitForAttach(spec *volume.Spec, devicePath string, _ *v1.Pod, timeout time.Duration) (string, error) {
	mounter, err := volumeSpecToMounter(spec, attacher.host)
	if err != nil {
		klog.Warningf("failed to get fc mounter: %v", err)

  optional bool attached = 1;

  // attachmentMetadata is populated with any
  // information returned by the attach operation, upon successful attach, that must be passed
  // into subsequent WaitForAttach or Mount calls.
  // This field must only be set by the entity completing the attach
  // operation, i.e. the external-attacher.
  // +optional
  map<string, string> attachmentMetadata = 2;

	return nil
}

// WaitForDetach is part of the volume.Detacher interface.
func (d *detacherDefaults) WaitForDetach(devicePath string, timeout time.Duration) error {
	klog.Warning(logPrefix(d.plugin.flexVolumePlugin), "using default WaitForDetach for device ", devicePath)
	return nil
}

// UnmountDevice is part of the volume.Detacher interface.