c.Assert(err, nil)
	// executing the HTTP request.
	response, err = s.client.Do(request)
	c.Assert(err, nil)
	// validating the response status code.
	c.Assert(response.StatusCode, http.StatusOK)
	// reading the response body.
	// response body is expected to have the copied content of the first uploaded object.
	object, err := io.ReadAll(response.Body)
	c.Assert(err, nil)
	c.Assert(string(object), "hello world")
}