pdf/xl.meta": {"Versions":[{"Type":1,"V2Obj":{"ID":"aGEA/ZUOR4ueRIZsAgfDqA==","DDir":"9MMwM47bS+K6KvQqN3hlDw==","EcAlgo":1,"EcM":2,"EcN":2,"EcBSize":1048576,"EcIndex":4,"EcDist":[4,1,2,3],"CSumAlgo":1,"PartNums":[1],"PartETags":[""],"PartSizes":[101974],"PartASizes":[176837],"Size":101974,"MTime":1634106631319256439,"MetaSys":{"X-Minio-Internal-compression":"a2xhdXNwb3N0L2NvbXByZXNzL3My","X-Minio-Internal-actual-size":"MTc2ODM3","x-minio-internal-objectlock-legalhold-timestamp":"MjAyMS0xMC0xOVQy...

// object). When `len(partSizes) == 1`, asMultipart is used to upload
// the object as multipart with 1 part or as a regular single object.
//
// All upload failures are considered test errors - this function is
// intended as a helper for other tests.
func uploadTestObject(t *testing.T, apiRouter http.Handler, creds auth.Credentials, bucketName, objectName string,

	PartETags          []string          `json:"PartETags" msg:"PartETags,allownil"`             // Part ETags
	PartSizes          []int64           `json:"PartSizes" msg:"PartSizes"`                      // Part Sizes
	PartActualSizes    []int64           `json:"PartASizes,omitempty" msg:"PartASizes,allownil"` // Part ActualSizes (compression)

				return nil, fmt.Errorf("size mismatch. Meta size: %d, Prev: %d", ei.V2Obj.Size, m.objSize)
			}
			for i, s := range ei.V2Obj.PartNums {
				if s == partNum {
					m.size = ei.V2Obj.PartSizes[i]
					m.partSize = ei.V2Obj.PartSizes[i]
					break
				}
			}
		} else {
			return nil, err
		}

		offset := ei.V2Obj.EcBSize * blockNum
		if offset >= m.size {

	for i := 0; b.Loop(); i++ {
		// insert the object.
		totalPartsNR := int(math.Ceil(float64(objSize) / float64(partSize)))
		for j := range totalPartsNR {
			if j < totalPartsNR-1 {
				textPartData = textData[j*partSize : (j+1)*partSize-1]
			} else {
				textPartData = textData[j*partSize:]
			}
			md5hex := getMD5Hash(textPartData)
			var partInfo PartInfo

// calculatePartSizeFromIdx calculates the part size according to input index.
// returns error if totalSize is -1, partSize is 0, partIndex is 0.
func calculatePartSizeFromIdx(ctx context.Context, totalSize int64, partSize int64, partIndex int) (currPartSize int64, err error) {
	if totalSize < -1 {
		return 0, errInvalidArgument
	}
	if partSize == 0 {
		return 0, errPartSizeZero
	}
	if partIndex < 1 {
		return 0, errPartSizeIndex
	}

}

// AddTestObjectPart - add a new object part in order.
func (m *xlMetaV1Object) AddTestObjectPart(partNumber int, partSize int64) {
	partInfo := ObjectPartInfo{
		Number: partNumber,
		Size:   partSize,
	}

	// Proceed to include new part info.
	m.Parts[partNumber-1] = partInfo
}

		sizes = make([]int64, len(o.Parts))
		for i, part := range o.Parts {
			var partSize uint64
			partSize, err = sio.DecryptedSize(uint64(part.Size))
			if err != nil {
				err = errObjectTampered
				return
			}
			sizes[i] = int64(partSize)
			decObjSize += int64(partSize)
		}
	} else {
		var partSize uint64
		partSize, err = sio.DecryptedSize(uint64(o.Size))
		if err != nil {
			err = errObjectTampered

			partSize := latestMeta.Parts[partIndex].Size
			partActualSize := latestMeta.Parts[partIndex].ActualSize
			partModTime := latestMeta.Parts[partIndex].ModTime
			partNumber := latestMeta.Parts[partIndex].Number
			partIdx := latestMeta.Parts[partIndex].Index
			partChecksums := latestMeta.Parts[partIndex].Checksums
			tillOffset := erasure.ShardFileOffset(0, partSize, partSize)

}

// AddObjectPart - add a new object part in order.
func (fi *FileInfo) AddObjectPart(partNumber int, partETag string, partSize, actualSize int64, modTime time.Time, idx []byte, checksums map[string]string) {
	partInfo := ObjectPartInfo{
		Number:     partNumber,
		ETag:       partETag,
		Size:       partSize,
		ActualSize: actualSize,
		ModTime:    modTime,
		Index:      idx,
		Checksums:  checksums,
	}