anchor.diff:  tc() ->
       [send_ok,
        send_nok,
  +     send_eval,
        send_bad_answer,
        send_arbitrary,
        send_unknown,
  
positive.code:     #'diameter_base_answer-message'{'Result-Code' = ?INVALID_AVP_BITS}
          = call(Config, Req).
  
  %% Send an accounting ACR that the server tries to answer with an
  %% inappropriate header, resulting in no answer being sent and the
  %% request timing out.
  
negative.code: %%
  %% %CopyrightBegin%
  %%
  %% Copyright Ericsson AB 2010-2013. All Rights Reserved.
  %%
  %% The contents of this file are subject to the Erlang Public License,
  %% Version 1.1, (the "License"); you may not use this file except in
  