return
	}

	uploadID, partNumberMarker, maxParts, encodingType, s3Error := getObjectResources(r.Form)
	if s3Error != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}
	if partNumberMarker < 0 {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidPartNumberMarker), r.URL)
		return
	}
	if maxParts < 0 {

			writeErrorResponse(ctx, w, apiErr, r.URL)
			return
		}
		if maxParts <= 0 {
			apiErr := errorCodes.ToAPIErr(ErrMalformedPOSTRequest)
			apiErr.Description = fmt.Sprintf("%s (%v)", apiErr.Description, multipart.ErrMessageTooLarge)
			writeErrorResponse(ctx, w, apiErr, r.URL)
			return
		}
		maxParts--

		name := part.FormName()
		if name == "" {
			continue
		}

	if z.SinglePool() {
		return z.serverPools[0].ListObjectParts(ctx, bucket, object, uploadID, partNumberMarker, maxParts, opts)
	}

	for idx, pool := range z.serverPools {
		if z.IsSuspended(idx) {
			continue
		}
		result, err := pool.ListObjectParts(ctx, bucket, object, uploadID, partNumberMarker, maxParts, opts)
		if err == nil {
			return result, nil
		}
		if _, ok := err.(InvalidUploadID); ok {

	testCases := []struct {
		fault            Fault
		partNumberMarker string
		maxParts         string
		expectedErr      APIError
	}{
		// Test case - 1.
		// case where a signature mismatch is introduced and the response is validated.
		{
			fault:            BadSignature,
			partNumberMarker: "",
			maxParts:         "",
			expectedErr:      signatureMismatchErr,
		},

		// Test case - 2.

		OA.ObjectParts.MaxParts = opts.MaxParts
		partsLength := len(objInfo.Parts)
		OA.ObjectParts.PartsCount = partsLength

		if opts.MaxParts > -1 {
			for i, v := range objInfo.Parts {
				if v.Number <= opts.PartNumberMarker {
					continue
				}

				if len(OA.ObjectParts.Parts) == opts.MaxParts {
					break
				}

}

// return URL for a listing parts on a given upload id.
func getListMultipartURLWithParams(endPoint, bucketName, objectName, uploadID, maxParts, partNumberMarker, encoding string) string {
	queryValues := url.Values{}
	queryValues.Set("uploadId", uploadID)
	queryValues.Set("max-parts", maxParts)
	if partNumberMarker != "" {
		queryValues.Set("part-number-marker", partNumberMarker)
	}