test_config_validation.py 文件源码

def test_has_at_least_one_key():
    """Test has_at_least_one_key validator."""
    schema = vol.Schema(cv.has_at_least_one_key('beer', 'soda'))

    for value in (None, [], {}, {'wine': None}):
        with pytest.raises(vol.MultipleInvalid):
            schema(value)

    for value in ({'beer': None}, {'soda': None}):
        schema(value)