anchor.diff:  
   -spec is_ct_available() -> boolean().
   is_ct_available() ->
  -    case application:get_env(escalus, common_test) of
  +    case application:get_env(?APPNAME, common_test) of
           %% For a transitional period let's assume that unless
           %% {common_test, false} is defined, Common Test is available.
           undefined ->
  
positive.code: %% might be cached and lists:keyfind/3 used in place of proplists:get_value/2
  %% (watch out - these return different values on lookup failure).
  consult_config_file(Option) ->
      case application:get_env(config_file) of
          undefined ->
              error({escalus_error, no_config_file});
          {ok, ConfigFile} ->
  
negative.code: 
  %% What about that?
  -export([rpc_call/6]).
  
  -define(APPNAME, escalus).
  
  -spec add_log_link(any(), any(), any()) -> ok | false.
  add_log_link(Heading, File, Type) ->
  