def test_dict_format():
    assert dict_format(test_format_data,
                       test_format_formats) == test_format_result
    assert dict_format({}, test_format_formats) is None
def test_dict_format():
    assert dict_format(test_format_data, test_format_formats) == test_format_result
    assert dict_format({}, test_format_formats) is None