func TestChecksumAddToHeader(t *testing.T) {
	tests := []struct {
		name     string
		checksum ChecksumType
		fullobj  bool
		wantErr  bool
	}{
		{"CRC32-composite", ChecksumCRC32, false, false},
		{"CRC32-full-object", ChecksumCRC32, true, false},
		{"CRC32C-composite", ChecksumCRC32C, false, false},
		{"CRC32C-full-object", ChecksumCRC32C, true, false},

		return nil
	}
	if !c.Valid() {
		return fmt.Errorf("invalid base checksum")
	}
	if !other.Valid() {
		return fmt.Errorf("invalid part checksum")
	}

	switch c.Type.Base() {
	case ChecksumCRC32:
		v := crc32Combine(crc32.IEEE, binary.BigEndian.Uint32(c.Raw), binary.BigEndian.Uint32(other.Raw), size)
		binary.BigEndian.PutUint32(c.Raw, v)
	case ChecksumCRC32C: