mongo-python-driver/test/test_monitor.py
2014-10-31 16:10:13 -04:00

56 lines
1.7 KiB
Python

# Copyright 2014 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 monitor module."""
import gc
import sys
import time
sys.path[0:0] = [""]
from pymongo.monitor import MONITORS
from test import unittest, port, host, IntegrationTest
from test.utils import single_client, wait_until, one
class TestMonitor(IntegrationTest):
def test_atexit_hook(self):
# Weakrefs to currently running Monitor instances.
prior_monitors = MONITORS.copy()
client = single_client(host, port)
wait_until(lambda: MONITORS - prior_monitors,
'register new monitor')
# Just one new monitor should have been registered.
new_monitor_refs = MONITORS - prior_monitors
self.assertEqual(1, len(new_monitor_refs))
monitor_ref = one(new_monitor_refs)
del client
start = time.time()
while time.time() - start < 30:
gc.collect()
if monitor_ref not in MONITORS:
# New monitor was unregistered.
break
time.sleep(0.1)
else:
self.fail("Didn't ever unregister monitor")
if __name__ == "__main__":
unittest.main()