def METHOD_NAME(mock_sub, sub_stream_kw, sleep_zero, capsys):
    """A simple call will be invoked."""
    with mock_sub.tools.input.wait_bar():
        mock_sub.run(["hello", "world"])
    mock_sub._subprocess.Popen.assert_called_with(["hello", "world"], **sub_stream_kw)
    # fmt: off
    expected_output = (
        "output line 1\n"
        "\n"
        "output line 3\n"
        "\n"
    )
    # fmt: on
    assert capsys.readouterr().out == expected_output