def get_next_id(self):
        try:
            query = {'_id': 'last_id'}
            update = {'$inc': {'id': 1}}
            fn = self.db.internal.find_and_modify
            row = fn(query, update, upsert=True, new=True)
        except Exception as e:
            raise DatabaseException(e)
        return row['id']
def test_engine_module_name():
    engine = salt.engines.Engine({}, "foobar.start", {}, {}, {}, {}, name="foobar")
    assert engine.name == "foobar"