def METHOD_NAME():
    """Test for non-monotonic column."""
    plev = 1000
    top_limit = 5
    col = np.array([1, 2, 3, 2, 1])
    col = np.insert(col, 0, plev)
    col = np.append(col, top_limit)
    with pytest.raises(ValueError):
        _get_pressure_level_widths(col, air_pressure_axis=0)
    with pytest.raises(ValueError):
        _get_pressure_level_widths(np.atleast_2d(col), air_pressure_axis=1)
    with pytest.raises(ValueError):
        _get_pressure_level_widths(np.atleast_3d(col), air_pressure_axis=1)