func (fi *FileInfo) AddObjectPart(partNumber int, partETag string, partSize, actualSize int64, modTime time.Time, idx []byte, checksums map[string]string) {
	partInfo := ObjectPartInfo{
		Number:     partNumber,
		ETag:       partETag,
		Size:       partSize,
		ActualSize: actualSize,
		ModTime:    modTime,
		Index:      idx,
		Checksums:  checksums,
	}

	// Update part info if it already exists.

	}
	xl := xlMetaV2{}
	var versions []FileInfo
	var allVersionIDs, freeVersionIDs []string
	for i := 0; i < 5; i++ {
		fi := basefi
		fi.VersionID = mustGetUUID()
		fi.DataDir = mustGetUUID()
		fi.ModTime = basefi.ModTime.Add(time.Duration(i) * time.Second)
		if err := xl.AddVersion(fi); err != nil {
			t.Fatalf("%d: Failed to add version %v", i+1, err)
		}

		if i > 3 {
			// Simulate transition of a version

					VersionID: [16]byte{},
					ModTime:   baseTime.Add(60 * time.Minute).UnixNano(),
					Signature: [4]byte{5, 1, 1, 1},
					Type:      ObjectType,
					Flags:     0,
				}},
			},
		},
		// Zero version, modtime newer..
		6: {
			versions: []xlMetaV2ShallowVersion{
				{header: xlMetaV2VersionHeader{
					VersionID: [16]byte{},
					ModTime:   baseTime.Add(90 * time.Minute).UnixNano(),

		t.Run(test.command, func(t *testing.T) {
			// Get file ModTime before renew
			ModTime := map[string]time.Time{}
			for _, cert := range test.Certs {
				file, err := os.Stat(filepath.Join(tmpDir, fmt.Sprintf("%s.crt", cert.BaseName)))
				if err != nil {
					t.Fatalf("couldn't get certificate %s: %v", cert.Name, err)
				}
				ModTime[cert.Name] = file.ModTime()
			}
			for _, kubeConfig := range test.KubeconfigFiles {

				return
			}
		case "ETag":
			z.ETag, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "ETag")
				return
			}
		case "ModTime":
			z.ModTime, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "ModTime")
				return
			}
		case "StatusCode":
			z.StatusCode, err = dc.ReadInt()
			if err != nil {
				err = msgp.WrapError(err, "StatusCode")
				return

	if r.Comment != "comment" {
		t.Fatalf("comment is %q, want %q", r.Comment, "comment")
	}
	if string(r.Extra) != "extra" {
		t.Fatalf("extra is %q, want %q", r.Extra, "extra")
	}
	if r.ModTime.Unix() != 1e8 {
		t.Fatalf("mtime is %d, want %d", r.ModTime.Unix(), uint32(1e8))
	}
	if r.Name != "name" {
		t.Fatalf("name is %q, want %q", r.Name, "name")
	}
	if err := r.Close(); err != nil {
		t.Fatalf("Reader.Close: %v", err)
	}
}

			}
		case "ActualSize":
			z.ActualSize, err = dc.ReadInt64()
			if err != nil {
				err = msgp.WrapError(err, "ActualSize")
				return
			}
		case "ModTime":
			z.ModTime, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "ModTime")
				return
			}
		case "index":
			z.Index, err = dc.ReadBytes(z.Index)
			if err != nil {
				err = msgp.WrapError(err, "Index")
				return
			}

		}
		return
	}

	// New object info
	fileObjInfo := ObjectInfo{
		Bucket:      bucket,
		Name:        object,
		Size:        int64(file.UncompressedSize64),
		ModTime:     zipObjInfo.ModTime,
		ContentType: mime.TypeByExtension(filepath.Ext(object)),
	}

	var rc io.ReadCloser

	if file.UncompressedSize64 > 0 {
		// There may be number of header bytes before the content.

	fileMod := time.Unix(1000000000, 0).UTC()
	fs := fakeFS{
		"/": &fakeFileInfo{
			dir:     true,
			modtime: dirMod,
			ents: []*fakeFileInfo{
				{
					basename: "b",
					modtime:  fileMod,
					contents: contents,
				},
				{
					basename: "a",
					modtime:  fileMod,
					contents: contents,
				},
			},
		},
	}

	return
}

func (z xlMetaV2VersionHeaderV2) MarshalJSON() (o []byte, e error) {
	tmp := struct {
		VersionID string
		ModTime   time.Time
		Signature string
		Type      uint8
		Flags     uint8
	}{
		VersionID: hex.EncodeToString(z.VersionID[:]),
		ModTime:   time.Unix(0, z.ModTime),
		Signature: hex.EncodeToString(z.Signature[:]),
		Type:      z.Type,
		Flags:     z.Flags,
	}
	return json.Marshal(tmp)