uploadID:         uploadID,
			copySourceHeader: url.QueryEscape(SlashSeparator + bucketName + SlashSeparator + testObject),
			accessKey:        credentials.AccessKey,
			secretKey:        credentials.SecretKey,

			expectedRespStatus: http.StatusNotFound,
		},

		// Test case - 4.
		// Test case with valid byte range.
		{
			bucketName:       bucketName,
			uploadID:         uploadID,

	newResponse = &InitiateMultipartUploadResponse{}

	err = decoder.Decode(newResponse)
	c.Assert(err, nil)
	c.Assert(len(newResponse.UploadID) > 0, true)
	// uploadID to be used for rest of the multipart operations on the object.
	uploadID := newResponse.UploadID

	// content for the part to be uploaded.
	buffer1 := bytes.NewReader([]byte("hello world"))
	// HTTP request for the part to be uploaded.

	opts.Internal.SourceMTime = time.Time{} // this value is saved properly in CompleteMultipartUpload()
	var uploadID string
	attempts := 1
	for attempts <= 3 {
		nctx, cancel := context.WithTimeout(ctx, time.Minute)
		uploadID, err = c.NewMultipartUpload(nctx, bucket, object, opts)
		cancel()
		if err == nil {
			break
		}