+
+t_has_key(Cfg) ->
+ {some, DictModule} = hope_kv_list:get(Cfg, ?DICT_MODULE),
+ D = DictModule:of_kv_list([{a, 1}, {b, 2}, {c, 3}]),
+ true = DictModule:has_key(D, a),
+ true = DictModule:has_key(D, b),
+ true = DictModule:has_key(D, c),
+ false = DictModule:has_key(D, d),
+ false = DictModule:has_key(D, e),
+ false = DictModule:has_key(D, f).