Python StrictRedis.zrem方法代碼示例

# 需要導入模塊: from redis.client import StrictRedis [as 別名]
# 或者: from redis.client.StrictRedis import zrem [as 別名]
    def test_ensure_timeline_scheduled_script(self):
        client = StrictRedis(db=9)

        timeline = 'timeline'
        timestamp = 100.0

        waiting_set_size = functools.partial(client.zcard, 'waiting')
        ready_set_size = functools.partial(client.zcard, 'ready')

        timeline_score_in_waiting_set = functools.partial(client.zscore, 'waiting', timeline)
        timeline_score_in_ready_set = functools.partial(client.zscore, 'ready', timeline)

        keys = ('waiting', 'ready', 'last-processed')

        # The first addition should cause the timeline to be added to the ready set.
        with self.assertChanges(ready_set_size, before=0, after=1), \
                self.assertChanges(timeline_score_in_ready_set, before=None, after=timestamp):
            assert ensure_timeline_scheduled(keys, (timeline, timestamp, 1, 10), client) == 1

        # Adding it again with a timestamp in the future should not change the schedule time.
        with self.assertDoesNotChange(waiting_set_size), \
                self.assertDoesNotChange(ready_set_size), \
                self.assertDoesNotChange(timeline_score_in_ready_set):
            assert ensure_timeline_scheduled(keys, (timeline, timestamp + 50, 1, 10), client) is None

        # Move the timeline from the ready set to the waiting set.
        client.zrem('ready', timeline)
        client.zadd('waiting', timestamp, timeline)
        client.set('last-processed', timestamp)

        increment = 1
        with self.assertDoesNotChange(waiting_set_size), \
                self.assertChanges(timeline_score_in_waiting_set, before=timestamp, after=timestamp + increment):
            assert ensure_timeline_scheduled(keys, (timeline, timestamp, increment, 10), client) is None

        # Make sure the schedule respects the maximum value.
        with self.assertDoesNotChange(waiting_set_size), \
                self.assertChanges(timeline_score_in_waiting_set, before=timestamp + 1, after=timestamp):
            assert ensure_timeline_scheduled(keys, (timeline, timestamp, increment, 0), client) is None

        # Test to ensure a missing last processed timestamp can be handled
        # correctly (chooses minimum of schedule value and record timestamp.)
        client.zadd('waiting', timestamp, timeline)
        client.delete('last-processed')
        with self.assertDoesNotChange(waiting_set_size), \
                self.assertDoesNotChange(timeline_score_in_waiting_set):
            assert ensure_timeline_scheduled(keys, (timeline, timestamp + 100, increment, 10), client) is None

        with self.assertDoesNotChange(waiting_set_size), \
                self.assertChanges(timeline_score_in_waiting_set, before=timestamp, after=timestamp - 100):
            assert ensure_timeline_scheduled(keys, (timeline, timestamp - 100, increment, 10), client) is None

# 需要導入模塊: from redis.client import StrictRedis [as 別名]
# 或者: from redis.client.StrictRedis import zrem [as 別名]
    def test_ensure_timeline_scheduled_script(self):
        client = StrictRedis(db=9)

        timeline = 'timeline'
        timestamp = 100.0

        waiting_set_size = functools.partial(client.zcard, 'waiting')
        ready_set_size = functools.partial(client.zcard, 'ready')
        timeline_score_in_waiting_set = functools.partial(client.zscore, 'waiting', timeline)
        timeline_score_in_ready_set = functools.partial(client.zscore, 'ready', timeline)

        # The first addition should cause the timeline to be added to the waiting set.
        with self.assertChanges(waiting_set_size, before=0, after=1), \
                self.assertChanges(timeline_score_in_waiting_set, before=None, after=timestamp):
            ensure_timeline_scheduled(('waiting', 'ready'), (timeline, timestamp), client)

        # Adding it again with a timestamp in the future should not change the schedule time.
        with self.assertDoesNotChange(waiting_set_size), \
                self.assertDoesNotChange(timeline_score_in_waiting_set):
            ensure_timeline_scheduled(('waiting', 'ready'), (timeline, timestamp + 50), client)

        # If we see a record with a timestamp earlier than the schedule time,
        # we should change the schedule.
        with self.assertDoesNotChange(waiting_set_size), \
                self.assertChanges(timeline_score_in_waiting_set, before=timestamp, after=timestamp - 50):
            ensure_timeline_scheduled(('waiting', 'ready'), (timeline, timestamp - 50), client)

        # Move the timeline from the waiting set to the ready set.
        client.zrem('waiting', timeline)
        client.zadd('ready', timestamp, timeline)

        # Nothing should change.
        with self.assertDoesNotChange(waiting_set_size), \
                self.assertDoesNotChange(ready_set_size), \
                self.assertDoesNotChange(timeline_score_in_ready_set):
            ensure_timeline_scheduled(('waiting', 'ready'), (timeline, timestamp - 50), client)