How to use the pipx.main function in pipx

def test_appargs_doubledash(
    pipx_temp_env, capsys, monkeypatch, input_run_args, expected_app_with_args
):
    parser = pipx.main.get_command_parser()
    monkeypatch.setattr(sys, "argv", ["pipx", "run"] + input_run_args)
    parsed_pipx_args = parser.parse_args()
    pipx.main.check_args(parsed_pipx_args)
    assert parsed_pipx_args.app_with_args == expected_app_with_args

def run_pipx_cli(pipx_args: List[str]):
    with mock.patch.object(sys, "argv", ["pipx"] + pipx_args):
        return main.cli()

def test_version(monkeypatch, capsys):
    mock_exit = mock.Mock(side_effect=ValueError("raised in test to exit early"))
    with mock.patch.object(sys, "exit", mock_exit), pytest.raises(
        ValueError, match="raised in test to exit early"
    ):
        assert not run_pipx_cli(["--version"])
    captured = capsys.readouterr()
    mock_exit.assert_called_with(0)
    assert main.__version__ in captured.out.strip()

def test_simple_parse_version(ver_str, expected):
    assert main.simple_parse_version(ver_str) == expected

def test_appargs_doubledash(
    pipx_temp_env, capsys, monkeypatch, input_run_args, expected_app_with_args
):
    parser = pipx.main.get_command_parser()
    monkeypatch.setattr(sys, "argv", ["pipx", "run"] + input_run_args)
    parsed_pipx_args = parser.parse_args()
    pipx.main.check_args(parsed_pipx_args)
    assert parsed_pipx_args.app_with_args == expected_app_with_args