request, err = newTestRequest(http.MethodPut, getPutObjectURL(s.endPoint, bucketName, objectName2), 0, nil)
	c.Assert(err, nil)
	// setting the "X-Amz-Copy-Source" to allow copying the content of previously uploaded object.
	request.Header.Set("X-Amz-Copy-Source", url.QueryEscape(SlashSeparator+bucketName+SlashSeparator+objectName))
	if s.signer == signerV4 {