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)
		}
		// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic of the handler.
		// Call the ServeHTTP to execute the handler.

}

// HeadBucketHandler - HEAD Bucket
// ----------
// This operation is useful to determine if a bucket exists.
// The operation returns a 200 OK if the bucket exists and you
// have permission to access it. Otherwise, the operation might
// return responses such as 404 Not Found and 403 Forbidden.
func (api objectAPIHandlers) HeadBucketHandler(w http.ResponseWriter, r *http.Request) {

			bucket.Methods(http.MethodGet).HandlerFunc(api.GetBucketLocationHandler).Queries("location", "")
		case "HeadBucket":
			// Register HeadBucket handler.
			bucket.Methods(http.MethodHead).HandlerFunc(api.HeadBucketHandler)
		case "DeleteMultipleObjects":
			// Register DeleteMultipleObjects handler.
			bucket.Methods(http.MethodPost).HandlerFunc(api.DeleteMultipleObjectsHandler).Queries("delete", "")
		case "NewMultipart":