anchor.diff:  stop_services(_Config) ->
       ok = diameter:stop_service(?CLIENT),
       ok = diameter:stop_service(?SERVER).
  +
  +%% Ensure even transports have been removed from request table.
  +empty(_Config) ->
  +    [] = ets:tab2list(diameter_request).
   
   stop(_Config) ->
       ok = diameter:stop().
  
positive.code:                                                C <- ?CONTAINERS,
                                                 A <- ?ENCODINGS,
                                                 P <- [[], [parallel]]]
          ++ [remove_transports, stop_services, stop].
  
  groups() ->
      Ts = tc(),
  
negative.code:          send_multiple_filters_2/1,
           send_multiple_filters_3/1,
           send_anything/1,
           outstanding/1,
           remove_transports/1,
           empty/1,
           stop_services/1,
           stop/1]).
  
  