anchor.diff:              ?assertEqual(3, length(Nodes)),
               lists:foreach(fun({N, _}) ->
                                     ?assertEqual(true, lists:member(N, Members))
  -                          end, Nodes);                                                 
  +                          end, Nodes);
           _Error ->
               ?debugVal(_Error)
       end,
  
positive.code:     end.
  
  
  redundant_1_test_() ->
      {timeout, 300, ?_assertEqual([], redundant())}.
  
  redundant() ->
      ?debugVal(start),
      %% prepare-1
      [] = os:cmd("epmd -daemon"),
      {ok, Hostname} = inet:gethostname(),
  
negative.code:     ok = redundant_1(Members, 2750001, 3000000),
  
      %% terminate
      timer:sleep(200),
      os:cmd("rm -rf queue"),
      os:cmd("rm ring_*"),
      ok.
  
  
  redundant_1(_, End, End) ->
  