anchor.diff:          true ->
               void;
           false ->
  -            %% ?debugVal({Key, R1#redundancies.vnode_id_to,
  -            %%            R1#redundancies.nodes, R2#redundancies.nodes})
               Difference = (length(R2#redundancies.nodes) -
                                 length(R1#redundancies.nodes)),
               ?assertEqual(true, (Difference > 0 andalso Difference =< 3))
  
positive.code:     detach_1_1(?NUM_OF_RECURSIVE_CALLS),
      ok.
  
  detach_after_attach_same_node() ->
      %% prepare
      {Hostname} = setup(),
  
negative.code:         true ->
              ok;
          false ->
              ?assertEqual(1, (length(R2#redundancies.nodes) -
                                   length(R1#redundancies.nodes)))
      end,
  