UncompressedSize: 987654321,
		ModifiedTime:     1234,
		ModifiedDate:     5678,
	}
	testHeaderRoundTrip(fh, fh.UncompressedSize, uint64(fh.UncompressedSize), t)
}

func TestFileHeaderRoundTrip64(t *testing.T) {
	fh := &FileHeader{
		Name:               "foo.txt",
		UncompressedSize64: 9876543210,
		ModifiedTime:       1234,
		ModifiedDate:       5678,
	}

		formats: FormatGNU,
	}, {
		header:  &Header{AccessTime: time.Unix(-123, 0)},
		paxHdrs: map[string]string{paxAtime: "-123"},
		formats: FormatPAX | FormatGNU,
	}, {
		header:  &Header{AccessTime: time.Unix(-123, 0), Format: FormatPAX},
		paxHdrs: map[string]string{paxAtime: "-123"},
		formats: FormatPAX,
	}, {
		header:  &Header{ChangeTime: time.Unix(123, 456)},
		paxHdrs: map[string]string{paxCtime: "123.000000456"},