// content for the part to be uploaded.
	buffer1 := bytes.NewReader([]byte("hello world"))
	// HTTP request for the part to be uploaded.
	request, err = newTestSignedRequest(http.MethodPut, getPartUploadURL(s.endPoint, bucketName, objectName, uploadID, "1"),
		int64(buffer1.Len()), buffer1, s.accessKey, s.secretKey, s.signer)
	c.Assert(err, nil)
	// execute the HTTP request to upload the first part.

	queryValue := url.Values{}
	queryValue.Set("uploads", "")
	return makeTestTargetURL(endPoint, bucketName, objectName, queryValue)
}

// return URL for a new multipart upload.
func getPartUploadURL(endPoint, bucketName, objectName, uploadID, partNumber string) string {
	queryValues := url.Values{}
	queryValues.Set("uploadId", uploadID)
	queryValues.Set("partNumber", partNumber)