zulip/zerver/tests/test_queue.py

111 lines
3.8 KiB
Python

from typing import Any, Dict, List
from unittest import mock
import orjson
from django.test import override_settings
from pika.exceptions import AMQPConnectionError, ConnectionClosed
from zerver.lib.queue import TornadoQueueClient, get_queue_client, queue_json_publish
from zerver.lib.test_classes import ZulipTestCase
class TestTornadoQueueClient(ZulipTestCase):
@mock.patch("zerver.lib.queue.ExceptionFreeTornadoConnection", autospec=True)
def test_on_open_closed(self, mock_cxn: mock.MagicMock) -> None:
with self.assertLogs("zulip.queue", "WARNING") as m:
connection = TornadoQueueClient()
connection.connection.channel.side_effect = ConnectionClosed("500", "test")
connection._on_open(mock.MagicMock())
self.assertEqual(
m.output,
[
"WARNING:zulip.queue:TornadoQueueClient couldn't open channel: connection already closed"
],
)
class TestQueueImplementation(ZulipTestCase):
@override_settings(USING_RABBITMQ=True)
def test_register_consumer(self) -> None:
output = []
queue_client = get_queue_client()
def collect(events: List[Dict[str, Any]]) -> None:
assert len(events) == 1
output.append(events[0])
queue_client.stop_consuming()
queue_json_publish("test_suite", {"event": "my_event"})
queue_client.start_json_consumer("test_suite", collect)
self.assert_length(output, 1)
self.assertEqual(output[0]["event"], "my_event")
@override_settings(USING_RABBITMQ=True)
def test_register_consumer_nack(self) -> None:
output = []
count = 0
queue_client = get_queue_client()
def collect(events: List[Dict[str, Any]]) -> None:
assert len(events) == 1
queue_client.stop_consuming()
nonlocal count
count += 1
if count == 1:
raise Exception("Make me nack!")
output.append(events[0])
queue_json_publish("test_suite", {"event": "my_event"})
try:
queue_client.start_json_consumer("test_suite", collect)
except Exception:
queue_client.start_json_consumer("test_suite", collect)
# Confirm that we processed the event fully once
self.assertEqual(count, 2)
self.assert_length(output, 1)
self.assertEqual(output[0]["event"], "my_event")
@override_settings(USING_RABBITMQ=True)
def test_queue_error_json(self) -> None:
queue_client = get_queue_client()
actual_publish = queue_client.publish
self.counter = 0
def throw_connection_error_once(self_obj: Any, *args: Any, **kwargs: Any) -> None:
self.counter += 1
if self.counter <= 1:
raise AMQPConnectionError("test")
actual_publish(*args, **kwargs)
with mock.patch(
"zerver.lib.queue.SimpleQueueClient.publish", throw_connection_error_once
), self.assertLogs("zulip.queue", level="WARN") as warn_logs:
queue_json_publish("test_suite", {"event": "my_event"})
self.assertEqual(
warn_logs.output,
["WARNING:zulip.queue:Failed to send to rabbitmq, trying to reconnect and send again"],
)
assert queue_client.channel
(_, _, message) = queue_client.channel.basic_get("test_suite")
assert message
result = orjson.loads(message)
self.assertEqual(result["event"], "my_event")
(_, _, message) = queue_client.channel.basic_get("test_suite")
assert not message
@override_settings(USING_RABBITMQ=True)
def tearDown(self) -> None:
queue_client = get_queue_client()
assert queue_client.channel
queue_client.channel.queue_purge("test_suite")
super().tearDown()