anchor.diff:              timer:sleep(10),
               wait_for_mocked_call(Mod,Fun,Args,NumCalls,Max,T0)
       end.
  -
  -
  
positive.code:     {match, _} = re:run(Success2, Msg), % success 3rd frame
      {match, _} = re:run(Success3, Msg), % success 4th frame
      %% 15 + 3 + 3 failures
      {match, _} = re:run(Success1, "This drain dropped 21 messages"),
      {match, _} = re:run(Success2, "This drain dropped 3 messages"),
      {match, _} = re:run(Success3, "This drain dropped 3 messages").
  
  %% Checking that framing funs and overflow functions are alright
  full_stack(Config) ->
  
negative.code:       [iolist_to_binary(IoData) ||
         {_Pid, {_Mod, raw_request, [_Ref, IoData, _TimeOut]}, _Res} <- Hist],
      {match, _} = re:run(Success, Msg),
      L10 = "Error L10 \\(output buffer overflow\\): 3 messages dropped",
      {match, _} = re:run(Success, L10).
  
  %% We drop frames twice, but the rest is successfully delivered. Overflow
  