test_model.py 文件源码

def test_declarative_base():
    """Test declarative_base()."""
    class MetaClass(DeclarativeMeta):
        pass

    metadata = MetaData()

    Model = declarative_base(metadata=metadata, metaclass=MetaClass)

    assert Model.__bases__[0] is ModelBase
    assert Model.metadata is metadata
    assert Model.metaclass is MetaClass