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# -*- coding: utf-8 -*-
# Copyright 2014 OpenMarket Ltd
#
# 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.
from twisted.internet import defer
from twisted.trial import unittest
from synapse.util.lockutils import LockManager
class LockManagerTestCase(unittest.TestCase):
def setUp(self):
self.lock_manager = LockManager()
@defer.inlineCallbacks
def test_one_lock(self):
key = "test"
deferred_lock1 = self.lock_manager.lock(key)
self.assertTrue(deferred_lock1.called)
lock1 = yield deferred_lock1
self.assertFalse(lock1.released)
lock1.release()
self.assertTrue(lock1.released)
@defer.inlineCallbacks
def test_concurrent_locks(self):
key = "test"
deferred_lock1 = self.lock_manager.lock(key)
deferred_lock2 = self.lock_manager.lock(key)
self.assertTrue(deferred_lock1.called)
self.assertFalse(deferred_lock2.called)
lock1 = yield deferred_lock1
self.assertFalse(lock1.released)
self.assertFalse(deferred_lock2.called)
lock1.release()
self.assertTrue(lock1.released)
self.assertTrue(deferred_lock2.called)
lock2 = yield deferred_lock2
lock2.release()
@defer.inlineCallbacks
def test_sequential_locks(self):
key = "test"
deferred_lock1 = self.lock_manager.lock(key)
self.assertTrue(deferred_lock1.called)
lock1 = yield deferred_lock1
self.assertFalse(lock1.released)
lock1.release()
self.assertTrue(lock1.released)
deferred_lock2 = self.lock_manager.lock(key)
self.assertTrue(deferred_lock2.called)
lock2 = yield deferred_lock2
self.assertFalse(lock2.released)
lock2.release()
self.assertTrue(lock2.released)
@defer.inlineCallbacks
def test_with_statement(self):
key = "test"
with (yield self.lock_manager.lock(key)) as lock:
self.assertFalse(lock.released)
self.assertTrue(lock.released)
@defer.inlineCallbacks
def test_two_with_statement(self):
key = "test"
with (yield self.lock_manager.lock(key)):
pass
with (yield self.lock_manager.lock(key)):
pass
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