rec := httptest.NewRecorder()
		// construct HTTP request for HEAD bucket.
		req, err := newTestSignedRequestV4(http.MethodHead, getHEADBucketURL("", testCase.bucketName), 0, nil, testCase.accessKey, testCase.secretKey, nil)
		if err != nil {
			t.Fatalf("Test %d: %s: Failed to create HTTP request for HeadBucketHandler: <ERROR> %v", i+1, instanceType, err)
		}

	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.

}

// return URL for listing buckets.
func getListBucketURL(endPoint string) string {
	return makeTestTargetURL(endPoint, "", "", url.Values{})
}

// return URL for HEAD on the bucket.
func getHEADBucketURL(endPoint, bucketName string) string {
	return makeTestTargetURL(endPoint, bucketName, "", url.Values{})
}

// return URL for deleting the bucket.
func getDeleteBucketURL(endPoint, bucketName string) string {