case "/sys/block/":
		f := &fakeFileInfo{
			name: "dm-1",
		}
		return []os.FileInfo{f}, nil
	case "/dev/disk/by-id/":
		f := &fakeFileInfo{
			name: "scsi-3600508b400105e210000900000490000",
		}
		return []os.FileInfo{f}, nil
	}
	return nil, nil
}

func (handler *fakeIOHandler) Lstat(name string) (os.FileInfo, error) {
	return nil, nil
}

}

func TestPluginVolumeWWIDs(t *testing.T) {
	vol := &v1.Volume{
		Name: "vol1",
		VolumeSource: v1.VolumeSource{
			FC: &v1.FCVolumeSource{
				WWIDs:  []string{"3600508b400105e210000900000490000"},
				FSType: "ext4",
			},
		},
	}
	doTestPlugin(t, volume.NewSpecFromVolume(vol))
}

func TestPluginPersistentVolumeWWIDs(t *testing.T) {
	fs := v1.PersistentVolumeFilesystem

func findDiskWWIDs(wwid string, io ioHandler, deviceUtil volumeutil.DeviceUtil) (string, string) {
	// Example wwid format:
	//   3600508b400105e210000900000490000
	//   <VENDOR NAME> <IDENTIFIER NUMBER>
	// Example of symlink under by-id:
	//   /dev/by-id/scsi-3600508b400105e210000900000490000
	//   /dev/by-id/scsi-<VENDOR NAME>_<IDENTIFIER NUMBER>
	// The wwid could contain white space and it will be replaced

	// globalMapPathUUID examples:
	//   wwn+lun: plugins/kubernetes.io/fc/volumeDevices/50060e801049cfd1-lun-0/{pod uuid}
	//   wwid: plugins/kubernetes.io/fc/volumeDevices/3600508b400105e210000900000490000/{pod uuid}
	globalPDPath := filepath.Dir(globalMapPathUUID)
	// Create volume from wwn+lun or wwid
	wwns, lun, wwids, err := parsePDName(globalPDPath)
	if err != nil {