bucketName := getRandomBucketName()
	// create request to HEAD on the bucket.
	// HEAD on an bucket helps validate the existence of the bucket.
	request, err := newTestSignedRequest(http.MethodHead, getHEADBucketURL(s.endPoint, bucketName),
		0, nil, s.accessKey, s.secretKey, s.signer)
	c.Assert(err, nil)

	// execute the http request.
	response, err := s.client.Do(request)
	c.Assert(err, nil)
	// Assert the response.