@Test
public void toJsonInputEmptyExpectedEmptySettingsAndSignatures() throws Exception {

  InputStream stream = SeriesEndpointTest.class.getResourceAsStream("/user_settings_test_empty.json");
  InputStreamReader reader = new InputStreamReader(stream);
  JSONObject expected = (JSONObject) new JSONParser().parse(reader);
  UserSettings userSetting = new UserSettings();
  assertThat(expected.toJSONString(), SameJSONAs.sameJSONAs(userSetting.toJson().toJson()));
}