tests.py 文件源码

def test_later_access_nowait(self):

        get_next_value()

        def one(output):
            with transaction.atomic():
                value = get_next_value()
                output.append(('one', value))
                time.sleep(0.5)
            connection.close()

        def two(output):
            time.sleep(0.1)
            with self.assertRaises(OperationalError):
                with transaction.atomic():
                    value = get_next_value(nowait=True)
                    output.append(('two', value))   # shouldn't be reached
            output.append(('two', 'exc'))
            connection.close()

        expected = [
            ('one', 2),
            ('two', 'exc'),
        ]

        self.assertSequence(one, two, expected)