test_options.py 文件源码

def test_generate_callback_from_composition(
        comma_separated_list, normalize_paths, preexisting_callback, values,
        parsed_value, expected_value,
):
    """Verify our generate_callback_from composition."""
    dest = 'foo'
    opt_str = '--{}'.format(dest)
    option = optparse.Option(opt_str, dest=dest)
    parser = mock.Mock(values=optparse.Values(values))

    callback = options.generate_callback_from(
        comma_separated_list=comma_separated_list,
        normalize_paths=normalize_paths,
        preexisting_callback=preexisting_callback,
    )

    callback(option, opt_str, parsed_value, parser)
    assert getattr(parser.values, dest) == expected_value