anchor.diff:    <<"won_by_player2">> = maps:get(<<"status">>, BodyDecode),
     ok.
   
  +-spec complete_coverage(config()) -> ok.
  +complete_coverage(_Config) ->
  +  try fiar_auth:credentials(bad_attribute) of
  +    Credentials -> throw({error, Credentials})
  +  catch
  +    _ -> ok
  +  end.
  +
   %% @private
   drop_chips([], Mid, [Header, _]) -> 
     api_call(get, "/matches/"++Mid, Header, #{});
  
positive.code: init_per_testcase(get_status, Config) -> basic(Config);
  init_per_testcase(first_play, Config) -> basic(Config);
  init_per_testcase(bad_credentials, Config) -> basic(Config);
  init_per_testcase(play_bad_id, Config) -> authenticated(Config);
  init_per_testcase(start_without_player2, Config) -> authenticated(Config);
  init_per_testcase(wins_vertically, Config) -> authenticated(Config);
  
negative.code:   %get match with bad id
    {ok, #{status_code := 404}} =
           api_call(get, "/matches/123456", Headers1),
    {ok, #{status_code := 401}} =
           api_call(get, "/matches/123456", Headers).
  
  -spec get_matches(config()) -> true.
  get_matches(_Config) ->
  