def test_connect(self):
sqlite3_mock = MagicMock()
row_factory_mock = PropertyMock(return_value=None)
type(sqlite3_mock).row_factory = row_factory_mock
sqlite3.connect = sqlite3_mock
db = Database('my_db')
db.connect()
sqlite3.connect.assert_called_with('my_db')
self.assertIsInstance(db.conn, MagicMock)
