}, {
		header:  &Header{ModTime: time.Unix(1, 500)},
		paxHdrs: map[string]string{paxMtime: "1.0000005"},
		formats: FormatUSTAR | FormatPAX | FormatGNU,
	}, {
		header:  &Header{ModTime: time.Unix(1, 0)},
		formats: FormatUSTAR | FormatPAX | FormatGNU,
	}, {
		header:  &Header{ModTime: time.Unix(1, 0), Format: FormatPAX},
		formats: FormatUSTAR | FormatPAX,
	}, {

			Format:     FormatPAX,
		}, {
			Typeflag: TypeReg,
			Name:     "file3",
			ModTime:  time.Unix(0, 0),
			Format:   FormatUSTAR,
		}, {
			Typeflag:   TypeReg,
			Name:       "file4",
			ModTime:    time.Unix(1400000000, 0),
			PAXRecords: map[string]string{"mtime": "1400000000"},
			Format:     FormatPAX,
		}},
	}, {
		file: "testdata/nil-uid.tar", // golang.org/issue/5290

	}
	if !ft.Modified.IsZero() && !equalTimeAndZone(f.Modified, ft.Modified) {
		t.Errorf("%s: Modified=%s, want %s", f.Name, f.Modified, ft.Modified)
	}
	if !ft.ModTime.IsZero() && !equalTimeAndZone(f.ModTime(), ft.ModTime) {
		t.Errorf("%s: ModTime=%s, want %s", f.Name, f.ModTime(), ft.ModTime)
	}

	testFileMode(t, f, ft.Mode)

	size := uint64(f.UncompressedSize)
	if size == uint32max {
		size = f.UncompressedSize64

// templateV7Plus or writeRawFile.
func (tw *Writer) templateV7Plus(hdr *Header, fmtStr stringFormatter, fmtNum numberFormatter) *block {
	tw.blk.reset()

	modTime := hdr.ModTime
	if modTime.IsZero() {
		modTime = time.Unix(0, 0)
	}

	v7 := tw.blk.toV7()
	v7.typeFlag()[0] = hdr.Typeflag
	fmtStr(v7.name(), hdr.Name)
	fmtStr(v7.linkName(), hdr.Linkname)
	fmtNum(v7.mode(), hdr.Mode)

	hdr.Size = p.parseNumeric(v7.size())
	hdr.Mode = p.parseNumeric(v7.mode())
	hdr.Uid = int(p.parseNumeric(v7.uid()))
	hdr.Gid = int(p.parseNumeric(v7.gid()))
	hdr.ModTime = time.Unix(p.parseNumeric(v7.modTime()), 0)

	// Unpack format specific fields.
	if format > formatV7 {
		ustar := tr.blk.toUSTAR()
		hdr.Uname = p.parseString(ustar.userName())
		hdr.Gname = p.parseString(ustar.groupName())

func msDosTimeToTime(dosDate, dosTime uint16) time.Time {
	return time.Date(
		// date bits 0-4: day of month; 5-8: month; 9-15: years since 1980
		int(dosDate>>9+1980),
		time.Month(dosDate>>5&0xf),
		int(dosDate&0x1f),

		// time bits 0-4: second/2; 5-10: minute; 11-15: hour
		int(dosTime>>11),
		int(dosTime>>5&0x3f),
		int(dosTime&0x1f*2),
		0, // nanoseconds

		time.UTC,
	)
}

	verifyNumeric(h.Size, len(v7.size()), "Size", paxSize)
	verifyNumeric(h.Devmajor, len(ustar.devMajor()), "Devmajor", paxNone)
	verifyNumeric(h.Devminor, len(ustar.devMinor()), "Devminor", paxNone)
	verifyTime(h.ModTime, len(v7.modTime()), "ModTime", paxMtime)
	verifyTime(h.AccessTime, len(gnu.accessTime()), "AccessTime", paxAtime)
	verifyTime(h.ChangeTime, len(gnu.changeTime()), "ChangeTime", paxCtime)

	// Check for header-only types.

				PAXRecords: map[string]string{"path": ""}, // Should delete "path", but keep "mtime"
			}, nil},
			testHeader{Header{
				Typeflag: TypeReg, Name: "file3",
			}, nil},
			testHeader{Header{
				Typeflag:   TypeReg,
				Name:       "file4",
				ModTime:    time.Unix(1400000000, 0),
				PAXRecords: map[string]string{"mtime": "1400000000"},
			}, nil},
			testClose{nil},
		},
	}, {

		ModifiedDate:     5678,
	}
	fi := fh.FileInfo()
	fh2, err := FileInfoHeader(fi)
	if err != nil {
		t.Fatal(err)
	}
	if got, want := fh2.ModTime(), fh.ModTime(); got != want {
		t.Errorf("Modified: got %s, want %s\n", got, want)
	}
	if got, want := fi.ModTime(), fh.ModTime(); got != want {
		t.Errorf("Modified: got %s, want %s\n", got, want)
	}
}

type repeatedByte struct {
	off int64
	b   byte

//	Size              | uint33 | unlimited |    uint89
//	Mode              | uint21 |    uint21 |    uint57
//	Uid/Gid           | uint21 | unlimited |    uint57
//	Uname/Gname       |    32B | unlimited |       32B
//	ModTime           | uint33 | unlimited |     int89
//	AccessTime        |    n/a | unlimited |     int89
//	ChangeTime        |    n/a | unlimited |     int89
//	Devmajor/Devminor | uint21 |    uint21 |    uint57