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