assertSame(sb1FromIterable, joiner.appendTo(sb1FromIterable, set));
    assertEquals(0, sb1FromIterable.length());

    StringBuilder sb1FromIterator = new StringBuilder();
    assertSame(sb1FromIterator, joiner.appendTo(sb1FromIterator, set));
    assertEquals(0, sb1FromIterator.length());

    StringBuilder sb2 = new StringBuilder();
    assertSame(sb2, joiner.appendTo(sb2, array));
    assertEquals(0, sb2.length());

				fi.DataDir = mustGetUUID()
				ids[i] = fi.VersionID
				fi.ModTime = fi.ModTime.Add(-time.Second)
				xl.AddVersion(fi)
			}
			// Encode all. This is used for benchmarking.
			enc, err := xl.AppendTo(nil)
			if err != nil {
				b.Fatal(err)
			}
			b.Logf("Serialized size: %d bytes", len(enc))
			rng := rand.New(rand.NewSource(0))
			dump := make([]byte, len(enc))

			allVersionIDs = append(allVersionIDs, fi.TierFreeVersionID())
		} else {
			versions = append(versions, fi)
			allVersionIDs = append(allVersionIDs, fi.VersionID)
		}
	}
	buf, err := xl.AppendTo(nil)
	if err != nil {
		t.Fatalf("Failed to serialize xlmeta %v", err)
	}
	fivs, err := getFileInfoVersions(buf, basefi.Volume, basefi.Name, false)
	if err != nil {
		t.Fatalf("getFileInfoVersions failed: %v", err)

	}

	failOnErr(xl.AddVersion(fi))

	fi.VersionID = mustGetUUID()
	fi.DataDir = mustGetUUID()
	fi.Data = data2
	failOnErr(xl.AddVersion(fi))

	serialized, err := xl.AppendTo(nil)
	failOnErr(err)
	// Roundtrip data
	var xl2 xlMetaV2
	failOnErr(xl2.Load(serialized))

	// We should have one data entry
	list, err := xl2.data.list()
	failOnErr(err)
	if len(list) != 2 {

	}
	inputSerialized := make([]metaCacheEntry, len(inputs))
	for i, xl := range inputs {
		xl.sortByModTime()
		var err error
		entry := metaCacheEntry{
			name: "testobject",
		}
		entry.metadata, err = xl.AppendTo(nil)
		if err != nil {
			t.Fatal(err)
		}
		inputSerialized[i] = entry
	}

	tests := []struct {
		name         string
		m            metaCacheEntries
		r            metadataResolutionParams

				meta:   encoded,
			}
			return nil
		}
	}
	return fmt.Errorf("addVersion: Internal error, unable to add version")
}

// AppendTo will marshal the data in z and append it to the provided slice.
func (x *xlMetaV2) AppendTo(dst []byte) ([]byte, error) {
	// Header...
	sz := len(xlHeader) + len(xlVersionCurrent) + msgp.ArrayHeaderSize + len(dst) + 3*msgp.Uint32Size
	// Existing + Inline data

		if serverSideChecksum != nil {
			fi.Checksum = serverSideChecksum.AppendTo(nil, nil)
			if opts.EncryptFn != nil {
				fi.Checksum = opts.EncryptFn("object-checksum", fi.Checksum)
			}
		}
	} else if fi.Checksum == nil && opts.WantChecksum != nil {
		// Trailing headers checksums should now be filled.
		fi.Checksum = opts.WantChecksum.AppendTo(nil, nil)
		if opts.EncryptFn != nil {

		checksum.Type = checksumType
		if !checksumType.FullObjectRequested() {
			checksum = *hash.NewChecksumFromData(checksumType, checksumCombined)
		}
		fi.Checksum = checksum.AppendTo(nil, checksumCombined)
		if opts.EncryptFn != nil {
			fi.Checksum = opts.EncryptFn("object-checksum", fi.Checksum)
		}
	}
	// Remove superfluous internal headers.