Function test_rich_metavar_parts

tests/test_argparse_utils.py:145–166

Test cmd2's override of _rich_metavar_parts which handles custom nargs formats. :param nargs: the arguments nargs value :param expected_parts: list to compare to _rich_metavar_parts's return value Each element in this list is a 2-item tuple.

(
    nargs: int | tuple[int, int | float],
    expected_parts: list[tuple[str, bool]],
)

    ],
)
def test_rich_metavar_parts(
    nargs: int | tuple[int, int | float],
    expected_parts: list[tuple[str, bool]],
) -> None:
    """
    Test cmd2's override of _rich_metavar_parts which handles custom nargs formats.

    :param nargs: the arguments nargs value
    :param expected_parts: list to compare to _rich_metavar_parts's return value

                           Each element in this list is a 2-item tuple.
                           item 1: one part of the argument string outputted by _format_args
                           item 2: boolean stating whether rich-argparse should color this part
    """
    parser = Cmd2ArgumentParser()
    help_formatter = parser._get_formatter()

    action = parser.add_argument("arg", nargs=nargs)  # type: ignore[arg-type]
    default_metavar = help_formatter._get_default_metavar_for_positional(action)

    parts = help_formatter._rich_metavar_parts(action, default_metavar)
    assert list(parts) == expected_parts


@pytest.mark.parametrize(