Method go

test/engine/test_transaction.py:201–210

()

        transaction = [None]

        def go():
            with mock.patch.object(
                connection,
                "_commit_impl",
                mock.Mock(
                    side_effect=exc.DBAPIError("failure", None, None, None)
                ),
            ):
                with connection.begin() as t1:
                    transaction[0] = t1

        assert_raises_message(exc.DBAPIError, r"failure", go)