def test_create_id_order(self):
        lis = []
        for i in range(10):
            lis.append(create_id())
            time.sleep(0.001)

        self.assertEqual(lis, sorted(lis))
    def test_create_id(self):
        data_id = create_id()

        self.assertTrue(isinstance(data_id, int))
        self.assertTrue(0 < data_id and data_id < 2**64)