}

                index = null;
                dataFile = null;
            }
        }

        @Override
        public void close() throws IOException {
            if (dataFile != null) {
                dataFile.close();
            }
        }

        public boolean hasOutput(long classId, TestOutputEvent.Destination destination) {

			}
			t.Log("csiTest.VolumeAll mounter.Setup(fsGroup) done OK")

			dataFile := filepath.Join(filepath.Dir(mounter.GetPath()), volDataFileName)
			if _, err := os.Stat(dataFile); err != nil {
				t.Fatalf("csiTest.VolumeAll metadata JSON file not found: %s", dataFile)
			}
			t.Log("csiTest.VolumeAll JSON datafile generated OK:", dataFile)

			// ******** Volume Reconstruction ************* //

		}
		// remove volume data file as well
		volPath := filepath.Dir(mountPath)
		dataFile := filepath.Join(volPath, volDataFileName)
		klog.V(4).Info(log("also deleting volume info data file [%s]", dataFile))
		if err := os.Remove(dataFile); err != nil && !os.IsNotExist(err) {
			return errors.New(log("failed to delete volume data file [%s]: %v", dataFile, err))
		}
		// remove volume path

type dataFile struct {
	name string
	data []byte
}

func (f dataFile) Path() string                 { return f.name }
func (f dataFile) Lstat() (os.FileInfo, error)  { return dataFileInfo{f}, nil }
func (f dataFile) Open() (io.ReadCloser, error) { return io.NopCloser(bytes.NewReader(f.data)), nil }

type dataFileInfo struct {
	f dataFile
}

func (f zipFile) Open() (io.ReadCloser, error) { return f.f.Open() }

type dataFile struct {
	name string
	data []byte
}

func (f dataFile) Path() string                { return f.name }
func (f dataFile) Lstat() (fs.FileInfo, error) { return dataFileInfo{f}, nil }
func (f dataFile) Open() (io.ReadCloser, error) {
	return io.NopCloser(bytes.NewReader(f.data)), nil
}

	if csiClient == nil {
		t.Errorf("mapper csiClient is nil: %v", err)
	}

	// ensure data file is created
	dataFile := getVolumeDeviceDataDir(csiMapper.spec.Name(), plug.host)
	if _, err := os.Stat(dataFile); err != nil {
		if os.IsNotExist(err) {
			t.Errorf("data file not created %s", dataFile)
		} else {
			t.Fatal(err)
		}
	}
}

func TestPluginNewUnmapper(t *testing.T) {

						filemap[file][verID+".json"] = buf.String()
						for _, i := range ei.V2Obj.PartNums {
							if len(ei.V2Obj.MetaSys.Inline) != 0 {
								break
							}
							file := file
							dataFile := fmt.Sprintf("%s%s/part.%d", strings.TrimSuffix(file, "xl.meta"), uuid.UUID(ei.V2Obj.DDir).String(), i)
							if i > 1 {
								file = fmt.Sprintf("%s/part.%d", file, i)
								filemap[file] = make(map[string]string)