func (handler *deviceHandler) GetISCSIPortalHostMapForTarget(targetIqn string) (map[string]int, error) {
	portalHostMap := make(map[string]int)
	return portalHostMap, nil
}

// FindDevicesForISCSILun unsupported returns nil
func (handler *deviceHandler) FindDevicesForISCSILun(targetIqn string, lun int) ([]string, error) {
	devices := []string{}
	return devices, nil

type DeviceUtil interface {
	FindMultipathDeviceForDevice(disk string) string
	FindSlaveDevicesOnMultipath(disk string) []string
	GetISCSIPortalHostMapForTarget(targetIqn string) (map[string]int, error)
	FindDevicesForISCSILun(targetIqn string, lun int) ([]string, error)
}

type deviceHandler struct {
	getIo IoUtil
}

// NewDeviceHandler Create a new IoHandler implementation
func NewDeviceHandler(io IoUtil) DeviceUtil {

				portalHostMap[persistentPortal] = hostNumber
			}
		}
	}

	return portalHostMap, nil
}

// FindDevicesForISCSILun given an iqn, and lun number, find all the devices
// corresponding to that LUN.
func (handler *deviceHandler) FindDevicesForISCSILun(targetIqn string, lun int) ([]string, error) {
	devices := make([]string, 0)
	io := handler.getIo

	// Iterate over all the iSCSI hosts in sysfs

	}
}

func TestFindDevicesForISCSILun(t *testing.T) {
	mockDeviceUtil := NewDeviceHandler(&mockOsIOHandler{})
	devices, err := mockDeviceUtil.FindDevicesForISCSILun("target1", 1)
	if err != nil {
		t.Fatalf("error getting devices for lun: %v", err)
	}
	if devices == nil {
		t.Fatal("no devices returned")
	}
	if len(devices) != 1 {

	if err != nil {
		klog.Errorf("iscsi delete devices: lun is not a number: %s\nError: %v", c.iscsiDisk.Lun, err)
		return err
	}
	// Enumerate the devices so we can delete them
	deviceNames, err := c.deviceUtil.FindDevicesForISCSILun(c.iscsiDisk.Iqn, lunNumber)
	if err != nil {
		klog.Errorf("iscsi delete devices: could not get devices associated with LUN %d on target %s\nError: %v",
			lunNumber, c.iscsiDisk.Iqn, err)
		return err
	}