name           string
	}{
		{
			meta:           meta,
			pools:          pools,
			name:           "Correct",
			expectedErr:    false,
			expectedUpdate: false,
		},
		{
			meta:           meta,
			pools:          newPools,
			name:           "Correct-Update",
			expectedErr:    false,
			expectedUpdate: true,
		},
		{
			meta:           meta,
			pools:          reducedPools,

		{
			header: http.Header{
				"X-Amz-Meta-Appid":   []string{"amz-meta"},
				"X-Minio-Meta-Appid": []string{"minio-meta"},
			},
			metadata: map[string]string{
				"X-Amz-Meta-Appid":   "amz-meta",
				"X-Minio-Meta-Appid": "minio-meta",
			},
			shouldFail: false,
		},
		// Fail if header key is not in canonicalized form
		{
			header: http.Header{
				"x-amz-meta-appid": []string{"amz-meta"},
			},

				fmt.Fprintf(h, "%v", meta.GetDataDir())
			}
			for _, part := range meta.Parts {
				fmt.Fprintf(h, "part.%d", part.Number)
			}

			if !meta.Deleted && meta.Size != 0 {
				fmt.Fprintf(h, "%v+%v", meta.Erasure.DataBlocks, meta.Erasure.ParityBlocks)
				fmt.Fprintf(h, "%v", meta.Erasure.Distribution)
			}

			if meta.IsRemote() {
				// ILM transition fields
				fmt.Fprint(h, meta.TransitionStatus)

				bms.ObjectLockConfig = &objLockStr
				bms.ObjectLockConfigUpdatedAt = meta.ObjectLockConfigUpdatedAt
			}

			if len(meta.QuotaConfigJSON) > 0 {
				quotaConfigStr := base64.StdEncoding.EncodeToString(meta.QuotaConfigJSON)
				bms.QuotaConfig = &quotaConfigStr
				bms.QuotaConfigUpdatedAt = meta.QuotaConfigUpdatedAt
			}

			if len(meta.EncryptionConfigXML) > 0 {

		t.Fatalf("Failed to read xl meta data %v", reducedErr)
	}

	// Test 1: Test that all disks are returned without any failures with
	// unmodified meta data
	partsMetadata, errs := readAllFileInfo(ctx, erasureDisks, "", bucket, object, "", false, true)
	if err != nil {
		t.Fatalf("Failed to read xl meta data %v", err)
	}

	}
}

// Test TestCheckMetaHeaders tests the logic of checkMetaHeaders() function
func TestCheckMetaHeaders(t *testing.T) {
	signedHeadersMap := map[string][]string{
		"X-Amz-Meta-Test":      {"test"},
		"X-Amz-Meta-Extension": {"png"},
		"X-Amz-Meta-Name":      {"imagepng"},
	}
	expectedMetaTest := "test"
	expectedMetaExtension := "png"
	expectedMetaName := "imagepng"

	m.expMovingAvg = exponentialMovingAverage(betaBucket, m.expMovingAvg, increment)
}

// exponentialMovingAverage calculates the exponential moving average
func exponentialMovingAverage(beta, previousAvg, incrementAvg float64) float64 {
	return (1-beta)*incrementAvg + beta*previousAvg
}

// getExpMovingAvgBytesPerSecond returns the exponential moving average for the bucket in bytes
func (m *bucketMeasurement) getExpMovingAvgBytesPerSecond() float64 {

			e = decodeVersions(v, nVers, func(idx int, hdr, meta []byte) error {
				var header xlMetaV2VersionHeaderV2
				if _, e := header.UnmarshalMsg(hdr); e != nil {
					return e
				}
				b, e := header.MarshalJSON()
				if e != nil {
					return e
				}
				var buf bytes.Buffer
				if _, e := msgp.UnmarshalAsJSON(&buf, meta); e != nil {
					return e
				}
				versions[idx] = version{

		if len(e.cached.versions) == 0 {
			return true
		}
		return e.cached.versions[0].header.Type == DeleteType
	}
	if !isXL2V1Format(e.metadata) {
		return false
	}
	if meta, _, err := isIndexedMetaV2(e.metadata); meta != nil {
		return meta.IsLatestDeleteMarker()
	} else if err != nil {
		return true
	}
	// Fall back...
	xlMeta, err := e.xlmeta()
	if err != nil || len(xlMeta.versions) == 0 {
		return true
	}

			continue
		}
		meta[k] = v
	}

	if oi.ContentEncoding != "" {
		meta[xhttp.ContentEncoding] = oi.ContentEncoding
	}

	if oi.ContentType != "" {
		meta[xhttp.ContentType] = oi.ContentType
	}

	meta[xhttp.AmzObjectTagging] = oi.UserTags
	meta[xhttp.AmzTagDirective] = "REPLACE"

	if sc == "" {
		sc = oi.StorageClass
	}