anchor.diff:      ok.
   
   next_hop(_Config) ->
  +    {ok, _Pid} = process_dictionary:start_link(),
  +    process_dictionary:register_process(?MODULE, "process_dictionary", self()),
       RT = gb_trees:enter(1, succ,
             gb_trees:enter(2, pred,
              gb_trees:enter(3, succ,
  
positive.code:     {ok, _Pid} = process_dictionary:start_link(),
      process_dictionary:register_process(?MODULE, "process_dictionary", self()),
      iter(count(), fun () ->
                            process_dictionary:lookup_process(process_dictionary)
                    end, "lookup_process by pid"),
      gen_component:kill(process_dictionary),
      unregister(process_dictionary),
  
negative.code:                  rt_chord:empty(succ))))))))),
      State = dht_node_state:new(RT, node:new(succ, 3), node:new(pred, 1),
                           node:new(me, 2), my_range, lb, db),
      gen_component:kill(process_dictionary),
      unregister(process_dictionary),
      iter(count(), fun () ->
                            rt_chord:next_hop(State, 42)
                 end, "next_hop"),
  