public async Task Returns_Json_String_In_Hystrix_Format_For_HystrixCommand()
            {
                HystrixCommandFactory commandFactory = new HystrixCommandFactory();
                int pollingInterval = 1000;
                var endpoint        = new HystrixMetricsStreamEndpoint(commandFactory, pollingInterval);
                var hystrixCommand  = commandFactory.GetHystrixCommand(new HystrixCommandIdentifier("groupA", "commandX"));

                // act
                var commandJson = await endpoint.GetCommandJson(hystrixCommand);

                Assert.NotNull(commandJson);
            }