anchor.diff:      leo_redundant_manager_api:attach('node_12@127.0.0.1', ?RACK_1),
       leo_redundant_manager_api:attach('node_13@127.0.0.1', ?RACK_2),
       leo_redundant_manager_api:attach('node_14@127.0.0.1', ?RACK_3),
  -
  -    ?debugVal(leo_redundant_manager_api:get_options()),
   
       leo_redundant_manager_api:create(?VER_CUR),
       leo_redundant_manager_api:create(?VER_PREV),
  
positive.code:     leo_misc:set_env(leo_redundant_manager, 'server_type', ?WORKER_NODE),
      {ok, Pid} = leo_redundant_manager_sup:start_link(?WORKER_NODE),
      leo_redundant_manager_api:set_options(?CONSISTENCY_LEVEL_OF_RA_3),
      leo_redundant_manager_api:attach('node_0@127.0.0.1', ?RACK_1),
      leo_redundant_manager_api:attach('node_1@127.0.0.1', ?RACK_2),
      leo_redundant_manager_api:attach('node_2@127.0.0.1', ?RACK_3),
  
negative.code:     {ok, #redundancies{nodes = ReplicaNodeL}} =
          leo_redundant_manager_worker:lookup('leo_ring_cur', AddrId),
      ?assertEqual(3, length(ReplicaNodeL)),
  
      Sets = lists:foldl(
               fun(#redundant_node{node = N}, S) ->
                       sets:add_element(N, S)
               end, sets:new(), ReplicaNodeL),
      ?assertEqual(3, sets:size(Sets)),
  
      check_redundancies(Index - 1).
  
  %% @private
  