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# Copyright 2016-present MongoDB, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Test the monitoring of the server heartbeats."""
from __future__ import annotations
import sys
from test.asynchronous.utils import AsyncMockPool
sys.path[0:0] = [""]
from test.asynchronous import AsyncIntegrationTest, client_knobs, unittest
from test.utils_shared import HeartbeatEventListener, async_wait_until
from pymongo.asynchronous.monitor import Monitor
from pymongo.errors import ConnectionFailure
from pymongo.hello import Hello, HelloCompat
_IS_SYNC = False
class TestHeartbeatMonitoring(AsyncIntegrationTest):
async def create_mock_monitor(self, responses, uri, expected_results):
listener = HeartbeatEventListener()
with client_knobs(
heartbeat_frequency=0.1, min_heartbeat_interval=0.1, events_queue_frequency=0.1
):
class MockMonitor(Monitor):
async def _check_with_socket(self, *args, **kwargs):
if isinstance(responses[1], Exception):
raise responses[1]
return Hello(responses[1]), 99
_ = await self.async_single_client(
h=uri,
event_listeners=(listener,),
_monitor_class=MockMonitor,
_pool_class=AsyncMockPool,
connect=True,
)
expected_len = len(expected_results)
# Wait for *at least* expected_len number of results. The
# monitor thread may run multiple times during the execution
# of this test.
await async_wait_until(
lambda: len(listener.events) >= expected_len, "publish all events"
)
# zip gives us len(expected_results) pairs.
for expected, actual in zip(expected_results, listener.events):
self.assertEqual(expected, actual.__class__.__name__)
self.assertEqual(actual.connection_id, responses[0])
if expected != "ServerHeartbeatStartedEvent":
if isinstance(actual.reply, Hello):
self.assertEqual(actual.duration, 99)
self.assertEqual(actual.reply._doc, responses[1])
else:
self.assertEqual(actual.reply, responses[1])
async def test_standalone(self):
responses = (
("a", 27017),
{HelloCompat.LEGACY_CMD: True, "maxWireVersion": 4, "minWireVersion": 0, "ok": 1},
)
uri = "mongodb://a:27017"
expected_results = ["ServerHeartbeatStartedEvent", "ServerHeartbeatSucceededEvent"]
await self.create_mock_monitor(responses, uri, expected_results)
async def test_standalone_error(self):
responses = (("a", 27017), ConnectionFailure("SPECIAL MESSAGE"))
uri = "mongodb://a:27017"
# _check_with_socket failing results in a second attempt.
expected_results = [
"ServerHeartbeatStartedEvent",
"ServerHeartbeatFailedEvent",
"ServerHeartbeatStartedEvent",
"ServerHeartbeatFailedEvent",
]
await self.create_mock_monitor(responses, uri, expected_results)
if __name__ == "__main__":
unittest.main()
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