it_should_prevent_cycles_with (spec/spider/spider_instance_spec.rb)

    # File spec/spider/spider_instance_spec.rb, line 393
      def it_should_prevent_cycles_with(cacher)
        u = 'http://localhost:8888/'
        u_p = URI.parse(u)
        u2 = 'http://localhost:8888/foo'
        u_p2 = URI.parse(u2)

        with_web_server(LoopingServlet) do
          si = SpiderInstance.new(nil => [u])
          si.check_already_seen_with cacher
          si.start!
        end
      end