anchor.diff:  
   
   load_storage_from_string_test_() ->
  -    GetStorage = fun({Storage, _Aggs, _Udp}) -> Storage end,
  +    GetStorage = fun({Storage, _Aggs, _Udp, _Dir}) -> Storage end,
       {setup, fun setup/0,
        [% empty or stub configurations
         ?_assertEqual([], load_from_string("", GetStorage)),
  
positive.code: 
  
  load_udp_config_from_string_test_() ->
      GetUdp = fun({_Storage, _Aggs, Udp}) -> Udp end,
      {setup, fun setup/0,
       [?_assertEqual(?FALLBACK_UDP_CONFIG, load_from_string("", GetUdp)),
        ?_assertEqual(?FALLBACK_UDP_CONFIG, load_from_string("udp:", GetUdp)),
  
negative.code:          load_config/1,
           get_metadata/1,
           get_udp_config/0,
           get_data_dir/0,
           udp_is_enabled/1]).
  
  
  -define(STATSER_DEFAULT_CONFIG, "statser.yaml").
  
  -define(FALLBACK_METRICS_DATA_DIR, <<".">>).
  
  -define(FALLBACK_UDP_CONFIG, #udp_config{port=none, interval=10000}).
  
  