anchor.diff:  
   cache_test(suite) -> [];
   cache_test(Config) when is_list(Config) ->
  -    ?DBG("cache_test -> start", []),
  +    tc_try(cache_test,
  +           fun() -> do_cache_test(Config) end).
  +
  +do_cache_test(Config) ->
  +    ?DBG("do_cache_test -> start", []),
       Prio       = normal,
       Verbosity  = trace,
       MibStorage = [{module, snmpa_mib_storage_ets}],
  
positive.code: 
  start_and_stop(suite) -> [];
  start_and_stop(Config) when is_list(Config) ->
      Prio      = normal,
      Verbosity = trace,
  
  
negative.code: 
  which_mib(suite) -> [];
  which_mib(Config) when is_list(Config) ->
      tc_try(which_mib,
             fun() -> do_which_mib(Config) end).
  
  do_which_mib(Config) ->
      Prio       = normal,
      Verbosity  = trace,
      MibDir     = ?config(data_dir, Config),
  