# File lib/moqueue/mock_exchange.rb, line 26
    def initialize(opts={})
      if @topic = opts[:topic]
        MockBroker.instance.register_topic_exchange(self)
      elsif @fanout = opts[:fanout]
        MockBroker.instance.register_fanout_exchange(self)
      elsif @direct = opts[:direct]
        MockBroker.instance.register_direct_exchange(self)
      end
    end