def test_vl_spec_for_axis_defaults():
    """Check that defaults are according to spec"""
    axis = api.Axis()
    assert axis.grid is True
    assert axis.layer == 'back'
    assert axis.orient is not None
    assert axis.ticks == 5
    assert axis.title is None
    assert axis.titleMaxLength is None
    assert axis.titleOffset is None
    assert axis.format is None
    assert axis.maxLabelLength == 25
dataset/ETHPy150Open ellisonbg/altair/altair/tests/test_api.py/test_vl_spec_for_axis_defaults/operator `is` -> `is not`