anchor.diff:      RUConf = [{rr_trigger_probability, 40} | proplists:delete(rr_trigger_probability, _RUConf)],
       {Start, End} = start_sync(Config, 6, 1000, [{fprob, 10}, {ftype, FType}], 
                                 3, 0.1, RUConf),
  -    ?assert(sync_degree(Start) < sync_degree(End)). 
  +    ?compare(fun erlang:'<'/2, sync_degree(Start), sync_degree(End)).
   
   dest(Config) ->
       %parameter
  
positive.code:     Conf = lists:keyreplace(rr_max_items, 1, OldConf, {rr_max_items, 500}),    
      {Start, End} = start_sync(Config, 4, 1000, [{fprob, 100}, {ftype, FType}], 
                                2, 0.2, Conf),
      ?assert(sync_degree(Start) < sync_degree(End)).
  
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  % Basic Functions Group
  
negative.code:             IM, IMNew, IMNew - IM,
              CM, CMNew, CMNew - CM]),
      %clean up
      ?equals(CM, 0),
      ?compare(fun erlang:'>'/2, CMNew, CM).
  
  parts(Config) ->
      Method = proplists:get_value(ru_method, Config),
  