}

		r.checksum = MD5
		r.contentSHA256 = SHA256
		if r.size < 0 && size >= 0 {
			r.src = etag.Wrap(ioutil.HardLimitReader(r.src, size), r.src)
			r.size = size
		}
		if r.actualSize <= 0 && actualSize >= 0 {
			r.actualSize = actualSize
		}
		return r, nil
	}

	if size >= 0 {
		r := ioutil.HardLimitReader(src, size)
		if !disableMD5 {
			if _, ok := src.(etag.Tagger); !ok {

		VersionID:                  ri.VersionID,
		ModTime:                    ri.ModTime,
		UserTags:                   ri.UserTags,
		Size:                       ri.Size,
		ActualSize:                 &ri.ActualSize,
		ReplicationStatus:          ri.ReplicationStatus,
		ReplicationStatusInternal:  ri.ReplicationStatusInternal,
		VersionPurgeStatus:         ri.VersionPurgeStatus,

	if opts.IndexCB != nil {
		index = opts.IndexCB()
	}

	actualSize := data.ActualSize()
	if actualSize < 0 {
		_, encrypted := crypto.IsEncrypted(fi.Metadata)
		compressed := fi.IsCompressed()
		switch {
		case compressed:
			// ... nothing changes for compressed stream.
			// if actualSize is -1 we have no known way to
			// determine what is the actualSize.
		case encrypted:
			decSize, err := sio.DecryptedSize(uint64(n))

		}
		if (actualSize == 0) && (actualSize != o.Size) {
			return -1, errInvalidDecompressedSize
		}
		return actualSize, nil
	}
	if _, ok := crypto.IsEncrypted(o.UserDefined); ok {
		sizeStr := o.UserDefined[ReservedMetadataPrefix+"actual-size"]
		if sizeStr != "" {
			size, err := strconv.ParseInt(sizeStr, 10, 64)
			if err != nil {
				return -1, errObjectTampered
			}
			return size, nil
		}

					"etag":                         "b3ff3ef3789147152fbfbc50efba4bfd-2",
				},
				Parts: []ObjectPartInfo{
					{
						Size:       39235668,
						ActualSize: 67108864,
					},
					{
						Size:       19177372,
						ActualSize: 32891137,
					},
				},
				Size: 100000001,
			},
			result: 100000001,
		},
		{
			objInfo: ObjectInfo{
				UserDefined: map[string]string{

package cmd

import (
	"context"
	"fmt"
	"slices"
	"strconv"
	"testing"
	"time"

	"github.com/dustin/go-humanize"
)

const ActualSize = 1000

// Test FileInfo.AddObjectPart()
func TestAddObjectPart(t *testing.T) {
	testCases := []struct {
		partNum       int
		expectedIndex int
	}{
		{1, 0},
		{2, 1},
		{4, 2},
		{5, 3},

				err = msgp.WrapError(err, "Size")
				return
			}
		case "ActualSize":
			if msgp.IsNil(bts) {
				bts, err = msgp.ReadNilBytes(bts)
				if err != nil {
					return
				}
				z.ActualSize = nil
			} else {
				if z.ActualSize == nil {
					z.ActualSize = new(int64)
				}
				*z.ActualSize, bts, err = msgp.ReadInt64Bytes(bts)
				if err != nil {

		forceMD5 = mustGetUUIDBytes()
	}

	hashReader, err := hash.NewReaderWithOpts(ctx, reader, hash.Options{
		Size:       size,
		MD5Hex:     md5hex,
		SHA256Hex:  sha256hex,
		ActualSize: actualSize,
		DisableMD5: false,
		ForceMD5:   forceMD5,
	})
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	// Set the actual size to the compressed/decrypted size if encrypted.
	actualSize, err := srcInfo.GetActualSize()
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}
	length := actualSize

	if !cpSrcDstSame {
		if err := enforceBucketQuotaHard(ctx, dstBucket, actualSize); err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}

	ETag       string            `json:"etag,omitempty" msg:"e"`
	Number     int               `json:"number" msg:"n"`
	Size       int64             `json:"size" msg:"s"`        // Size of the part on the disk.
	ActualSize int64             `json:"actualSize" msg:"as"` // Original size of the part without compression or encryption bytes.
	ModTime    time.Time         `json:"modTime" msg:"mt"`    // Date and time at which the part was uploaded.