/// <summary>
		/// Create a work item queue that will try to pull items from a named RabbitMQ endpoint
		/// </summary>
		/// <param name="endpoint">Destination endpoint to pull messages from</param>
		/// <param name="messagingBase">RabbitMQ connection provider</param>
		/// <param name="sleeper">Sleeper to rate limit polling</param>
		public RabbitMqPollingNode(IRoutingEndpoint endpoint,
			IMessagingBase messagingBase, ISleepWrapper sleeper)
		{
			_endpoint = endpoint.ToString();
			_messagingBase = messagingBase;
			_sleeper = sleeper;
			_boundMessageTypes = new ConcurrentSet<Type>();
		}
		public void setup()
		{
			_endpoint = Substitute.For<IRoutingEndpoint>();
			_messagingBase = Substitute.For<IMessagingBase>();
			_sleepWrapper = Substitute.For<ISleepWrapper>();

			_endpoint.ToString().Returns(_destinationName);

			_subject = new RabbitMqPollingNode(_endpoint, _messagingBase, _sleepWrapper);
		}