def test_delete_from_topic_no_subscribers(self):
""" Tests deleting of messages from a topic without subscribers.
"""
ps = RedisPubSub(self.kvdb, self.key_prefix)
msg_value = '"msg_value"'
topic = Topic('/test/delete')
ps.add_topic(topic)
producer = Client('Producer', 'producer')
ps.add_producer(producer, topic)
pub_ctx = PubCtx()
pub_ctx.client_id = producer.id
pub_ctx.topic = topic.name
pub_ctx.msg = Message(msg_value)
msg_id = ps.publish(pub_ctx).msg.msg_id
# We've got a msg_id now and we know this is a topic with no subsribers. In that case, deleting a messages should
# also delete all the metadata related to it along with its payload.
# First, let's confirm the messages is actually there
result = self.kvdb.zrange(ps.MSG_IDS_PREFIX.format(topic.name), 0, -1)
eq_(result, [msg_id])
result = self.kvdb.hgetall(ps.MSG_VALUES_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
result = self.kvdb.hgetall(ps.MSG_METADATA_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
result = self.kvdb.hgetall(ps.MSG_EXPIRE_AT_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
# Ok, now delete the message and confirm it's not in Redis anymore
ps.delete_from_topic(topic.name, msg_id)
result = self.kvdb.zrange(ps.MSG_IDS_PREFIX.format(topic.name), 0, -1)
eq_(result, [])
result = self.kvdb.hgetall(ps.MSG_VALUES_KEY)
eq_({}, result)
result = self.kvdb.hgetall(ps.MSG_METADATA_KEY)
eq_({}, result)
result = self.kvdb.hgetall(ps.MSG_EXPIRE_AT_KEY)
eq_({}, result)
def test_delete_from_topic_no_subscribers(self):
""" Tests deleting of messages from a topic without subscribers.
"""
ps = RedisPubSub(self.kvdb, self.key_prefix)
msg_value = '"msg_value"'
topic = Topic('/test/delete')
ps.add_topic(topic)
producer = Client('Producer', 'producer')
ps.add_producer(producer, topic)
pub_ctx = PubCtx()
pub_ctx.client_id = producer.id
pub_ctx.topic = topic.name
pub_ctx.msg = Message(msg_value)
msg_id = ps.publish(pub_ctx).msg.msg_id
# We've got a msg_id now and we know this is a topic with no subsribers. In that case, deleting a messages should
# also delete all the metadata related to it along with its payload.
# First, let's confirm the messages is actually there
result = self.kvdb.zrange(ps.MSG_IDS_PREFIX.format(topic.name), 0, -1)
eq_(result, [msg_id])
result = self.kvdb.hgetall(ps.MSG_VALUES_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
result = self.kvdb.hgetall(ps.MSG_METADATA_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
result = self.kvdb.hgetall(ps.MSG_EXPIRE_AT_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
# Ok, now delete the message and confirm it's not in Redis anymore
ps.delete_from_topic(topic.name, msg_id)
result = self.kvdb.zrange(ps.MSG_IDS_PREFIX.format(topic.name), 0, -1)
eq_(result, [])
result = self.kvdb.hgetall(ps.MSG_VALUES_KEY)
eq_({}, result)
result = self.kvdb.hgetall(ps.MSG_METADATA_KEY)
eq_({}, result)
result = self.kvdb.hgetall(ps.MSG_EXPIRE_AT_KEY)
eq_({}, result)
def test_delete_from_topic_has_subscribers(self):
""" Tests deleting of messages from a topic which has subscribers.
"""
ps = RedisPubSub(self.kvdb, self.key_prefix)
msg_value = '"msg_value"'
topic = Topic('/test/delete')
ps.add_topic(topic)
producer = Client('Producer', 'producer')
ps.add_producer(producer, topic)
consumer = Consumer('Consumer', 'consumer', new_cid())
ps.add_consumer(consumer, topic)
pub_ctx = PubCtx()
pub_ctx.client_id = producer.id
pub_ctx.topic = topic.name
pub_ctx.msg = Message(msg_value)
msg_id = ps.publish(pub_ctx).msg.msg_id
# We've got a msg_id now and we know this is a topic which has a subscriber so deleting a message from the topic
# should not delete it from any other place because the consumer may still hold onto it.
# First, let's confirm the messages is actually there
result = self.kvdb.zrange(ps.MSG_IDS_PREFIX.format(topic.name), 0, -1)
eq_(result, [msg_id])
result = self.kvdb.hgetall(ps.MSG_VALUES_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
result = self.kvdb.hgetall(ps.MSG_METADATA_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
result = self.kvdb.hgetall(ps.MSG_EXPIRE_AT_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
# Ok, now delete the message and confirm it's not in the topic anymore however it's still kept elsewhere.
ps.delete_from_topic(topic.name, msg_id)
result = self.kvdb.zrange(ps.MSG_IDS_PREFIX.format(topic.name), 0, -1)
eq_(result, [])
result = self.kvdb.hgetall(ps.MSG_VALUES_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
result = self.kvdb.hgetall(ps.MSG_METADATA_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
result = self.kvdb.hgetall(ps.MSG_EXPIRE_AT_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
def test_delete_from_topic_has_subscribers(self):
""" Tests deleting of messages from a topic which has subscribers.
"""
ps = RedisPubSub(self.kvdb, self.key_prefix)
msg_value = '"msg_value"'
topic = Topic('/test/delete')
ps.add_topic(topic)
producer = Client('Producer', 'producer')
ps.add_producer(producer, topic)
consumer = Consumer('Consumer', 'consumer', new_cid())
ps.add_consumer(consumer, topic)
pub_ctx = PubCtx()
pub_ctx.client_id = producer.id
pub_ctx.topic = topic.name
pub_ctx.msg = Message(msg_value)
msg_id = ps.publish(pub_ctx).msg.msg_id
# We've got a msg_id now and we know this is a topic which has a subscriber so deleting a message from the topic
# should not delete it from any other place because the consumer may still hold onto it.
# First, let's confirm the messages is actually there
result = self.kvdb.zrange(ps.MSG_IDS_PREFIX.format(topic.name), 0, -1)
eq_(result, [msg_id])
result = self.kvdb.hgetall(ps.MSG_VALUES_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
result = self.kvdb.hgetall(ps.MSG_METADATA_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
result = self.kvdb.hgetall(ps.MSG_EXPIRE_AT_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
# Ok, now delete the message and confirm it's not in the topic anymore however it's still kept elsewhere.
ps.delete_from_topic(topic.name, msg_id)
result = self.kvdb.zrange(ps.MSG_IDS_PREFIX.format(topic.name), 0, -1)
eq_(result, [])
result = self.kvdb.hgetall(ps.MSG_VALUES_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
result = self.kvdb.hgetall(ps.MSG_METADATA_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
result = self.kvdb.hgetall(ps.MSG_EXPIRE_AT_KEY)
eq_(len(result), 1)
self.assertTrue(msg_id in result)
