1bfac99f08
PyMongo 2.x has Gevent-specific code to support Gevent with or without patch_thread. However, patch_socket is always required with Gevent. In PyMongo 3, we remove all Gevent-specific code and rely on Gevent's patch_all. Remove the "use_greenlets" option and attribute for MongoClient and MongoReplicaSetClient.
158 lines
4.8 KiB
Python
158 lines
4.8 KiB
Python
# Copyright 2012-2014 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 thread_util module."""
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import gc
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import sys
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import threading
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import time
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sys.path[0:0] = [""]
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from pymongo import thread_util
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from test import SkipTest, unittest
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from test.utils import my_partial, RendezvousThread
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class TestIdent(unittest.TestCase):
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def test_thread_ident(self):
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# 1. Store main thread's id.
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# 2. Start 2 child threads.
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# 3. Store their values for Ident.get().
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# 4. Children reach rendezvous point.
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# 5. Children call Ident.watch().
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# 6. One of the children calls Ident.unwatch().
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# 7. Children terminate.
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# 8. Assert that children got different ids from each other and from
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# main, and assert watched child's callback was executed, and that
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# unwatched child's callback was not.
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if 'java' in sys.platform:
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raise SkipTest("Can't rely on weakref callbacks in Jython")
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ident = thread_util.ThreadIdent()
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ids = set([ident.get()])
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unwatched_id = []
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done = set([ident.get()]) # Start with main thread's id.
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died = set()
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class WatchedThread(RendezvousThread):
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def __init__(self, ident, state):
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super(WatchedThread, self).__init__(state)
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self._my_ident = ident
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def before_rendezvous(self):
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self.my_id = self._my_ident.get()
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ids.add(self.my_id)
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def after_rendezvous(self):
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assert not self._my_ident.watching()
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self._my_ident.watch(lambda ref: died.add(self.my_id))
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assert self._my_ident.watching()
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done.add(self.my_id)
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class UnwatchedThread(WatchedThread):
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def before_rendezvous(self):
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super(UnwatchedThread, self).before_rendezvous()
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unwatched_id.append(self.my_id)
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def after_rendezvous(self):
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super(UnwatchedThread, self).after_rendezvous()
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self._my_ident.unwatch(self.my_id)
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assert not self._my_ident.watching()
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state = RendezvousThread.create_shared_state(2)
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t_watched = WatchedThread(ident, state)
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t_watched.start()
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t_unwatched = UnwatchedThread(ident, state)
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t_unwatched.start()
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RendezvousThread.wait_for_rendezvous(state)
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RendezvousThread.resume_after_rendezvous(state)
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t_watched.join()
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t_unwatched.join()
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self.assertTrue(t_watched.passed)
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self.assertTrue(t_unwatched.passed)
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# Remove references, let weakref callbacks run
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del t_watched
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del t_unwatched
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# Trigger final cleanup in Python <= 2.7.0.
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# http://bugs.python.org/issue1868
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ident.get()
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self.assertEqual(3, len(ids))
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self.assertEqual(3, len(done))
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# Make sure thread is really gone
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slept = 0
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while not died and slept < 10:
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time.sleep(1)
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gc.collect()
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slept += 1
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self.assertEqual(1, len(died))
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self.assertFalse(unwatched_id[0] in died)
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class TestCounter(unittest.TestCase):
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def test_counter(self):
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counter = thread_util.Counter()
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self.assertEqual(0, counter.dec())
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self.assertEqual(0, counter.get())
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self.assertEqual(0, counter.dec())
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self.assertEqual(0, counter.get())
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done = set()
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def f(n):
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for i in range(n):
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self.assertEqual(i, counter.get())
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self.assertEqual(i + 1, counter.inc())
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for i in range(n, 0, -1):
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self.assertEqual(i, counter.get())
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self.assertEqual(i - 1, counter.dec())
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self.assertEqual(0, counter.get())
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# Extra decrements have no effect
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self.assertEqual(0, counter.dec())
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self.assertEqual(0, counter.get())
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self.assertEqual(0, counter.dec())
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self.assertEqual(0, counter.get())
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done.add(n)
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threads = [threading.Thread(target=my_partial(f, i))
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for i in range(10)]
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for t in threads:
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t.start()
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for t in threads:
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t.join()
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self.assertEqual(10, len(done))
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if __name__ == "__main__":
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unittest.main()
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