def METHOD_NAME():
    # test forbidden case: both velocity and temperature are specified as overrides
    overrides = {
        "length_unit": length_unit,
        "velocity_unit": velocity_unit,
        "temperature_unit": temperature_unit,
    }
    with assert_raises(ValueError):
        data_dir_load(khi_cartesian_2D, kwargs={"units_override": overrides})