anchor.diff:  -define(PROVIDER1, <<"ProviderId1">>).
   -define(PROVIDER2, <<"ProviderId2">>).
   
  +
   new_transfer_histograms_test() ->
       Bytes = 50,
       Histogram = histogram:increment(histogram:new(?MIN_HIST_LENGTH), Bytes),
  
positive.code:     % ((50 + 100) / 2) / 5 = 15
      %                 50  100 160 80  200 400  0  150 300 200 100
      ?assertMatch([_, _, 15, 26, 24, 28, 60, 40, 15, 45, 50, 30 | _], SpeedChart).
  
  increasing_trend_at_the_start_of_histogram_test() ->
      % The start of the histogram should depict current trends in transfer speed
  
negative.code:         ),
          assertEqualMaps(ExpTransferHist, TransferHist2)
      end}.
  
  
  update_with_existent_the_same_slot_test() ->
      {setup, fun node_cache:init/0, fun(_) -> node_cache:destroy() end, fun() ->
  