@Override
    public ConfigFileList responseMessageForConfigFiles(String responseBody) {
        ConfigFilesResponseMessage response = codec.getGson().fromJson(responseBody, ConfigFilesResponseMessage.class);
        return ConfigFileList.from(response.getFiles());
    }
@Test
    public void shouldNotHaveErrorsWhenValidJSON() {
        assertFalse(handler.responseMessageForConfigFiles("{\"files\": []}").hasErrors());
    }