752 lines
30 KiB
Python
752 lines
30 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright © 2013-2015 eNovance Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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import threading
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import time
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import uuid
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from concurrent import futures
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import fixtures
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import testscenarios
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from testtools import matchers
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from testtools import testcase
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import tooz.coordination
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from tooz import tests
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def try_to_lock_job(name, coord, url, member_id):
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if not coord:
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coord = tooz.coordination.get_coordinator(
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url, member_id)
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coord.start()
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lock2 = coord.get_lock(name)
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return lock2.acquire(blocking=False)
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class TestAPI(testscenarios.TestWithScenarios,
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tests.TestCaseSkipNotImplemented):
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scenarios = [
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('kazoo', {'url': os.getenv("TOOZ_TEST_ZOOKEEPER_URL"),
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'bad_url': 'kazoo://localhost:1'}),
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('zake', {'url': 'zake://?timeout=5'}),
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('memcached', {'url': os.getenv("TOOZ_TEST_MEMCACHED_URL"),
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'bad_url': 'memcached://localhost:1',
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'timeout_capable': True}),
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('ipc', {'url': 'ipc://'}),
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('file', {'url': 'file:///tmp'}),
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('redis', {'url': os.getenv("TOOZ_TEST_REDIS_URL"),
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'bad_url': 'redis://localhost:1',
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'timeout_capable': True}),
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('postgresql', {'url': os.getenv("TOOZ_TEST_PGSQL_URL"),
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'bad_url': 'postgresql://localhost:1'}),
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('mysql', {'url': os.getenv("TOOZ_TEST_MYSQL_URL"),
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'bad_url': 'mysql://localhost:1'}),
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('zookeeper', {'url': os.getenv("TOOZ_TEST_ZOOKEEPER_URL"),
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'bad_url': 'zookeeper://localhost:1'}),
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]
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def assertRaisesAny(self, exc_classes, callable_obj, *args, **kwargs):
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checkers = [matchers.MatchesException(exc_class)
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for exc_class in exc_classes]
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matcher = matchers.Raises(matchers.MatchesAny(*checkers))
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callable_obj = testcase.Nullary(callable_obj, *args, **kwargs)
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self.assertThat(callable_obj, matcher)
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def setUp(self):
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super(TestAPI, self).setUp()
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self.useFixture(fixtures.NestedTempfile())
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if self.url is None:
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self.skipTest("No URL set for this driver")
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self.group_id = self._get_random_uuid()
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self.member_id = self._get_random_uuid()
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self._coord = tooz.coordination.get_coordinator(self.url,
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self.member_id)
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self._coord.start()
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def tearDown(self):
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self._coord.stop()
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super(TestAPI, self).tearDown()
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def test_connection_error(self):
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if not hasattr(self, "bad_url"):
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raise testcase.TestSkipped("No bad URL provided")
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coord = tooz.coordination.get_coordinator(self.bad_url,
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self.member_id)
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self.assertRaises(tooz.coordination.ToozConnectionError,
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coord.start)
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def test_stop_first(self):
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c = tooz.coordination.get_coordinator(self.url,
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self.member_id)
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self.assertRaises(tooz.coordination.ToozError,
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c.stop)
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def test_create_group(self):
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self._coord.create_group(self.group_id).get()
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all_group_ids = self._coord.get_groups().get()
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self.assertTrue(self.group_id in all_group_ids)
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def test_create_group_already_exist(self):
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self._coord.create_group(self.group_id).get()
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create_group = self._coord.create_group(self.group_id)
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self.assertRaises(tooz.coordination.GroupAlreadyExist,
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create_group.get)
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def test_get_groups(self):
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groups_ids = [self._get_random_uuid() for _ in range(0, 5)]
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for group_id in groups_ids:
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self._coord.create_group(group_id).get()
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created_groups = self._coord.get_groups().get()
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for group_id in groups_ids:
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self.assertTrue(group_id in created_groups)
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def test_delete_group(self):
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self._coord.create_group(self.group_id).get()
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all_group_ids = self._coord.get_groups().get()
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self.assertTrue(self.group_id in all_group_ids)
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self._coord.delete_group(self.group_id).get()
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all_group_ids = self._coord.get_groups().get()
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self.assertFalse(self.group_id in all_group_ids)
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join_group = self._coord.join_group(self.group_id)
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self.assertRaises(tooz.coordination.GroupNotCreated,
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join_group.get)
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def test_delete_group_non_existent(self):
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delete = self._coord.delete_group(self.group_id)
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self.assertRaises(tooz.coordination.GroupNotCreated,
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delete.get)
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def test_delete_group_non_empty(self):
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self._coord.create_group(self.group_id).get()
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self._coord.join_group(self.group_id).get()
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delete = self._coord.delete_group(self.group_id)
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self.assertRaises(tooz.coordination.GroupNotEmpty,
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delete.get)
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self._coord.leave_group(self.group_id)
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self._coord.delete_group(self.group_id).get()
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def test_join_group(self):
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self._coord.create_group(self.group_id).get()
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self._coord.join_group(self.group_id).get()
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member_list = self._coord.get_members(self.group_id).get()
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self.assertTrue(self.member_id in member_list)
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def test_join_nonexistent_group(self):
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join_group = self._coord.join_group(self.group_id)
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self.assertRaises(tooz.coordination.GroupNotCreated,
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join_group.get)
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def test_join_group_with_member_id_already_exists(self):
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self._coord.create_group(self.group_id).get()
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self._coord.join_group(self.group_id).get()
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client = tooz.coordination.get_coordinator(self.url,
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self.member_id)
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client.start()
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join_group = client.join_group(self.group_id)
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self.assertRaises(tooz.coordination.MemberAlreadyExist,
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join_group.get)
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def test_leave_group(self):
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self._coord.create_group(self.group_id).get()
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all_group_ids = self._coord.get_groups().get()
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self.assertTrue(self.group_id in all_group_ids)
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self._coord.join_group(self.group_id).get()
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member_list = self._coord.get_members(self.group_id).get()
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self.assertTrue(self.member_id in member_list)
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member_ids = self._coord.get_members(self.group_id).get()
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self.assertTrue(self.member_id in member_ids)
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self._coord.leave_group(self.group_id).get()
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new_member_objects = self._coord.get_members(self.group_id).get()
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new_member_list = [member.member_id for member in new_member_objects]
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self.assertTrue(self.member_id not in new_member_list)
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def test_leave_nonexistent_group(self):
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all_group_ids = self._coord.get_groups().get()
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self.assertTrue(self.group_id not in all_group_ids)
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leave_group = self._coord.leave_group(self.group_id)
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# Drivers raise one of those depending on their capability
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self.assertRaisesAny([tooz.coordination.MemberNotJoined,
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tooz.coordination.GroupNotCreated],
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leave_group.get)
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def test_leave_group_not_joined_by_member(self):
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self._coord.create_group(self.group_id).get()
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all_group_ids = self._coord.get_groups().get()
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self.assertTrue(self.group_id in all_group_ids)
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leave_group = self._coord.leave_group(self.group_id)
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self.assertRaises(tooz.coordination.MemberNotJoined,
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leave_group.get)
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def test_get_members(self):
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group_id_test2 = self._get_random_uuid()
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member_id_test2 = self._get_random_uuid()
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client2 = tooz.coordination.get_coordinator(self.url,
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member_id_test2)
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client2.start()
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self._coord.create_group(group_id_test2).get()
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self._coord.join_group(group_id_test2).get()
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client2.join_group(group_id_test2).get()
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members_ids = self._coord.get_members(group_id_test2).get()
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self.assertTrue(self.member_id in members_ids)
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self.assertTrue(member_id_test2 in members_ids)
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def test_get_member_capabilities(self):
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self._coord.create_group(self.group_id).get()
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self._coord.join_group(self.group_id, b"test_capabilities")
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capa = self._coord.get_member_capabilities(self.group_id,
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self.member_id).get()
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self.assertEqual(capa, b"test_capabilities")
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def test_get_member_capabilities_complex(self):
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self._coord.create_group(self.group_id).get()
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caps = {
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'type': 'warrior',
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'abilities': ['fight', 'flight', 'double-hit-damage'],
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}
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self._coord.join_group(self.group_id, caps)
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capa = self._coord.get_member_capabilities(self.group_id,
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self.member_id).get()
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self.assertEqual(capa, caps)
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def test_get_member_capabilities_nonexistent_group(self):
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capa = self._coord.get_member_capabilities(self.group_id,
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self.member_id)
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# Drivers raise one of those depending on their capability
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self.assertRaisesAny([tooz.coordination.MemberNotJoined,
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tooz.coordination.GroupNotCreated],
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capa.get)
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def test_get_member_capabilities_nonjoined_member(self):
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self._coord.create_group(self.group_id).get()
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capa = self._coord.get_member_capabilities(self.group_id,
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self.member_id)
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self.assertRaises(tooz.coordination.MemberNotJoined,
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capa.get)
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def test_update_capabilities(self):
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self._coord.create_group(self.group_id).get()
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self._coord.join_group(self.group_id, b"test_capabilities1").get()
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capa = self._coord.get_member_capabilities(self.group_id,
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self.member_id).get()
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self.assertEqual(capa, b"test_capabilities1")
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self._coord.update_capabilities(self.group_id,
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b"test_capabilities2").get()
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capa2 = self._coord.get_member_capabilities(self.group_id,
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self.member_id).get()
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self.assertEqual(capa2, b"test_capabilities2")
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def test_update_capabilities_with_group_id_nonexistent(self):
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update_cap = self._coord.update_capabilities(self.group_id,
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b'test_capabilities')
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# Drivers raise one of those depending on their capability
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self.assertRaisesAny([tooz.coordination.MemberNotJoined,
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tooz.coordination.GroupNotCreated],
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update_cap.get)
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def test_heartbeat(self):
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self._coord.heartbeat()
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def test_disconnect_leave_group(self):
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member_id_test2 = self._get_random_uuid()
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client2 = tooz.coordination.get_coordinator(self.url,
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member_id_test2)
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client2.start()
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self._coord.create_group(self.group_id).get()
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self._coord.join_group(self.group_id).get()
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client2.join_group(self.group_id).get()
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members_ids = self._coord.get_members(self.group_id).get()
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self.assertTrue(self.member_id in members_ids)
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self.assertTrue(member_id_test2 in members_ids)
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client2.stop()
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members_ids = self._coord.get_members(self.group_id).get()
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self.assertTrue(self.member_id in members_ids)
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self.assertTrue(member_id_test2 not in members_ids)
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def test_timeout(self):
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if not getattr(self, "timeout_capable", False):
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self.skipTest("This test only works with timeout capable drivers")
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member_id_test2 = self._get_random_uuid()
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client2 = tooz.coordination.get_coordinator(self.url,
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member_id_test2)
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client2.start()
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self._coord.create_group(self.group_id).get()
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self._coord.join_group(self.group_id).get()
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client2.join_group(self.group_id).get()
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members_ids = self._coord.get_members(self.group_id).get()
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self.assertTrue(self.member_id in members_ids)
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self.assertTrue(member_id_test2 in members_ids)
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# Watch the group, we want to be sure that when client2 is kicked out
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# we get an event.
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self._coord.watch_leave_group(self.group_id, self._set_event)
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time.sleep(3)
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self._coord.heartbeat()
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time.sleep(3)
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# Now client2 has timed out!
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members_ids = self._coord.get_members(self.group_id).get()
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while True:
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if self._coord.run_watchers():
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break
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self.assertTrue(self.member_id in members_ids)
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self.assertTrue(member_id_test2 not in members_ids)
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# Check that the event has been triggered
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self.assertIsInstance(self.event,
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tooz.coordination.MemberLeftGroup)
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self.assertEqual(member_id_test2,
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self.event.member_id)
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self.assertEqual(self.group_id,
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self.event.group_id)
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def _set_event(self, event):
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self.event = event
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return 42
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def test_watch_group_join(self):
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member_id_test2 = self._get_random_uuid()
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client2 = tooz.coordination.get_coordinator(self.url,
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member_id_test2)
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client2.start()
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self._coord.create_group(self.group_id).get()
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# Watch the group
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self._coord.watch_join_group(self.group_id, self._set_event)
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# Join the group
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client2.join_group(self.group_id).get()
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members_ids = self._coord.get_members(self.group_id).get()
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self.assertTrue(member_id_test2 in members_ids)
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while True:
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if self._coord.run_watchers():
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break
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self.assertIsInstance(self.event,
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tooz.coordination.MemberJoinedGroup)
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self.assertEqual(member_id_test2,
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self.event.member_id)
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self.assertEqual(self.group_id,
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self.event.group_id)
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# Stop watching
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self._coord.unwatch_join_group(self.group_id, self._set_event)
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self.event = None
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# Leave and rejoin group
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client2.leave_group(self.group_id).get()
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client2.join_group(self.group_id).get()
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self._coord.run_watchers()
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self.assertIsNone(self.event)
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def test_watch_leave_group(self):
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member_id_test2 = self._get_random_uuid()
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client2 = tooz.coordination.get_coordinator(self.url,
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member_id_test2)
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client2.start()
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self._coord.create_group(self.group_id).get()
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# Watch the group: this can leads to race conditions in certain
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# driver that are not able to see all events, so we join, wait for
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# the join to be seen, and then we leave, and wait for the leave to
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# be seen.
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self._coord.watch_join_group(self.group_id, lambda children: True)
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self._coord.watch_leave_group(self.group_id, self._set_event)
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# Join and leave the group
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client2.join_group(self.group_id).get()
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# Consumes join event
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while True:
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if self._coord.run_watchers():
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break
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client2.leave_group(self.group_id).get()
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# Consumes leave event
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while True:
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if self._coord.run_watchers():
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break
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self.assertIsInstance(self.event,
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tooz.coordination.MemberLeftGroup)
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self.assertEqual(member_id_test2,
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self.event.member_id)
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self.assertEqual(self.group_id,
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self.event.group_id)
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# Stop watching
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self._coord.unwatch_leave_group(self.group_id, self._set_event)
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self.event = None
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# Rejoin and releave group
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client2.join_group(self.group_id).get()
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client2.leave_group(self.group_id).get()
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self._coord.run_watchers()
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self.assertIsNone(self.event)
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def test_watch_join_group_disappear(self):
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if not hasattr(self._coord, '_destroy_group'):
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self.skipTest("This test only works with coordinators"
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" that have the ability to destroy groups.")
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self._coord.create_group(self.group_id).get()
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self._coord.watch_join_group(self.group_id, self._set_event)
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self._coord.watch_leave_group(self.group_id, self._set_event)
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member_id_test2 = self._get_random_uuid()
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client2 = tooz.coordination.get_coordinator(self.url,
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member_id_test2)
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client2.start()
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client2.join_group(self.group_id).get()
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while True:
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if self._coord.run_watchers():
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break
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self.assertIsInstance(self.event,
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tooz.coordination.MemberJoinedGroup)
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self.event = None
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# Force the group to disappear...
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self._coord._destroy_group(self.group_id)
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while True:
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if self._coord.run_watchers():
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break
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self.assertIsInstance(self.event,
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tooz.coordination.MemberLeftGroup)
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def test_watch_join_group_non_existent(self):
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self.assertRaises(tooz.coordination.GroupNotCreated,
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self._coord.watch_join_group,
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self.group_id,
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lambda: None)
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self.assertEqual(0, len(self._coord._hooks_join_group[self.group_id]))
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def test_watch_join_group_booted_out(self):
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self._coord.create_group(self.group_id).get()
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self._coord.join_group(self.group_id).get()
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self._coord.watch_join_group(self.group_id, self._set_event)
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self._coord.watch_leave_group(self.group_id, self._set_event)
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member_id_test2 = self._get_random_uuid()
|
|
client2 = tooz.coordination.get_coordinator(self.url,
|
|
member_id_test2)
|
|
client2.start()
|
|
client2.join_group(self.group_id).get()
|
|
|
|
while True:
|
|
if self._coord.run_watchers():
|
|
break
|
|
|
|
client3 = tooz.coordination.get_coordinator(self.url, self.member_id)
|
|
client3.start()
|
|
client3.leave_group(self.group_id).get()
|
|
|
|
# Only works for clients that have access to the groups they are part
|
|
# of, to ensure that after we got booted out by client3 that this
|
|
# client now no longer believes its part of the group.
|
|
if hasattr(self._coord, '_joined_groups'):
|
|
self.assertIn(self.group_id, self._coord._joined_groups)
|
|
self._coord.run_watchers()
|
|
self.assertNotIn(self.group_id, self._coord._joined_groups)
|
|
|
|
def test_watch_leave_group_non_existent(self):
|
|
self.assertRaises(tooz.coordination.GroupNotCreated,
|
|
self._coord.watch_leave_group,
|
|
self.group_id,
|
|
lambda: None)
|
|
self.assertEqual(0, len(self._coord._hooks_leave_group[self.group_id]))
|
|
|
|
def test_run_for_election(self):
|
|
self._coord.create_group(self.group_id).get()
|
|
self._coord.watch_elected_as_leader(self.group_id, self._set_event)
|
|
self._coord.run_watchers()
|
|
|
|
self.assertIsInstance(self.event,
|
|
tooz.coordination.LeaderElected)
|
|
self.assertEqual(self.member_id,
|
|
self.event.member_id)
|
|
self.assertEqual(self.group_id,
|
|
self.event.group_id)
|
|
|
|
def test_run_for_election_multiple_clients(self):
|
|
self._coord.create_group(self.group_id).get()
|
|
self._coord.watch_elected_as_leader(self.group_id, self._set_event)
|
|
self._coord.run_watchers()
|
|
|
|
member_id_test2 = self._get_random_uuid()
|
|
client2 = tooz.coordination.get_coordinator(self.url,
|
|
member_id_test2)
|
|
client2.start()
|
|
client2.watch_elected_as_leader(self.group_id, self._set_event)
|
|
client2.run_watchers()
|
|
|
|
self.assertIsInstance(self.event,
|
|
tooz.coordination.LeaderElected)
|
|
self.assertEqual(self.member_id,
|
|
self.event.member_id)
|
|
self.assertEqual(self.group_id,
|
|
self.event.group_id)
|
|
self.assertEqual(self._coord.get_leader(self.group_id).get(),
|
|
self.member_id)
|
|
|
|
self.event = None
|
|
|
|
self._coord.stop()
|
|
client2.run_watchers()
|
|
|
|
self.assertIsInstance(self.event,
|
|
tooz.coordination.LeaderElected)
|
|
self.assertEqual(member_id_test2,
|
|
self.event.member_id)
|
|
self.assertEqual(self.group_id,
|
|
self.event.group_id)
|
|
self.assertEqual(client2.get_leader(self.group_id).get(),
|
|
member_id_test2)
|
|
|
|
# Restart the coord because tearDown stops it
|
|
self._coord.start()
|
|
|
|
def test_get_leader(self):
|
|
self._coord.create_group(self.group_id).get()
|
|
|
|
leader = self._coord.get_leader(self.group_id).get()
|
|
self.assertEqual(leader, None)
|
|
|
|
self._coord.join_group(self.group_id).get()
|
|
|
|
leader = self._coord.get_leader(self.group_id).get()
|
|
self.assertEqual(leader, None)
|
|
|
|
# Let's get elected
|
|
self._coord.watch_elected_as_leader(self.group_id, self._set_event)
|
|
self._coord.run_watchers()
|
|
|
|
leader = self._coord.get_leader(self.group_id).get()
|
|
self.assertEqual(leader, self.member_id)
|
|
|
|
def test_run_for_election_multiple_clients_stand_down(self):
|
|
self._coord.create_group(self.group_id).get()
|
|
self._coord.watch_elected_as_leader(self.group_id, self._set_event)
|
|
self._coord.run_watchers()
|
|
|
|
member_id_test2 = self._get_random_uuid()
|
|
client2 = tooz.coordination.get_coordinator(self.url,
|
|
member_id_test2)
|
|
client2.start()
|
|
client2.watch_elected_as_leader(self.group_id, self._set_event)
|
|
client2.run_watchers()
|
|
|
|
self.assertIsInstance(self.event,
|
|
tooz.coordination.LeaderElected)
|
|
self.assertEqual(self.member_id,
|
|
self.event.member_id)
|
|
self.assertEqual(self.group_id,
|
|
self.event.group_id)
|
|
|
|
self.event = None
|
|
|
|
self._coord.stand_down_group_leader(self.group_id)
|
|
client2.run_watchers()
|
|
|
|
self.assertIsInstance(self.event,
|
|
tooz.coordination.LeaderElected)
|
|
self.assertEqual(member_id_test2,
|
|
self.event.member_id)
|
|
self.assertEqual(self.group_id,
|
|
self.event.group_id)
|
|
|
|
self.event = None
|
|
|
|
client2.stand_down_group_leader(self.group_id)
|
|
self._coord.run_watchers()
|
|
|
|
self.assertIsInstance(self.event,
|
|
tooz.coordination.LeaderElected)
|
|
self.assertEqual(self.member_id,
|
|
self.event.member_id)
|
|
self.assertEqual(self.group_id,
|
|
self.event.group_id)
|
|
|
|
def test_unwatch_elected_as_leader(self):
|
|
# Create a group and add a elected_as_leader callback
|
|
self._coord.create_group(self.group_id).get()
|
|
self._coord.watch_elected_as_leader(self.group_id, self._set_event)
|
|
|
|
# Ensure exactly one leader election hook exists
|
|
self.assertEqual(1, len(self._coord._hooks_elected_leader))
|
|
|
|
# Unwatch, and ensure no leader election hooks exist
|
|
self._coord.unwatch_elected_as_leader(self.group_id, self._set_event)
|
|
self.assertEqual(0, len(self._coord._hooks_elected_leader))
|
|
|
|
def test_get_lock(self):
|
|
lock = self._coord.get_lock(self._get_random_uuid())
|
|
self.assertTrue(lock.acquire())
|
|
self.assertTrue(lock.release())
|
|
with lock:
|
|
pass
|
|
|
|
def test_get_lock_concurrency_locking_same_lock(self):
|
|
lock = self._coord.get_lock(self._get_random_uuid())
|
|
|
|
graceful_ending = threading.Event()
|
|
|
|
def thread():
|
|
self.assertTrue(lock.acquire())
|
|
self.assertTrue(lock.release())
|
|
graceful_ending.set()
|
|
|
|
t = threading.Thread(target=thread)
|
|
t.daemon = True
|
|
with lock:
|
|
t.start()
|
|
# Ensure the thread try to get the lock
|
|
time.sleep(.1)
|
|
t.join()
|
|
graceful_ending.wait(.2)
|
|
self.assertTrue(graceful_ending.is_set())
|
|
|
|
def _do_test_get_lock_concurrency_locking_two_lock(self, executor,
|
|
use_same_coord):
|
|
name = self._get_random_uuid()
|
|
lock1 = self._coord.get_lock(name)
|
|
with lock1:
|
|
with executor(max_workers=1) as e:
|
|
coord = self._coord if use_same_coord else None
|
|
f = e.submit(try_to_lock_job, name, coord, self.url,
|
|
self._get_random_uuid())
|
|
self.assertFalse(f.result())
|
|
|
|
def test_get_lock_concurrency_locking_two_lock_process(self):
|
|
self._do_test_get_lock_concurrency_locking_two_lock(
|
|
futures.ProcessPoolExecutor, False)
|
|
|
|
def test_get_lock_concurrency_locking_two_lock_thread1(self):
|
|
self._do_test_get_lock_concurrency_locking_two_lock(
|
|
futures.ThreadPoolExecutor, False)
|
|
|
|
def test_get_lock_concurrency_locking_two_lock_thread2(self):
|
|
self._do_test_get_lock_concurrency_locking_two_lock(
|
|
futures.ThreadPoolExecutor, True)
|
|
|
|
def test_get_lock_concurrency_locking2(self):
|
|
# NOTE(sileht): some database based lock can have only
|
|
# one lock per connection, this test ensures acquiring a
|
|
# second lock doesn't release the first one.
|
|
lock1 = self._coord.get_lock(self._get_random_uuid())
|
|
lock2 = self._coord.get_lock(self._get_random_uuid())
|
|
|
|
graceful_ending = threading.Event()
|
|
thread_locked = threading.Event()
|
|
|
|
def thread():
|
|
with lock2:
|
|
self.assertFalse(lock1.acquire(blocking=False))
|
|
thread_locked.set()
|
|
graceful_ending.set()
|
|
|
|
t = threading.Thread(target=thread)
|
|
t.daemon = True
|
|
|
|
with lock1:
|
|
t.start()
|
|
thread_locked.wait()
|
|
self.assertTrue(thread_locked.is_set())
|
|
t.join()
|
|
graceful_ending.wait()
|
|
self.assertTrue(graceful_ending.is_set())
|
|
|
|
def test_get_lock_twice_locked_twice(self):
|
|
name = self._get_random_uuid()
|
|
lock1 = self._coord.get_lock(name)
|
|
lock2 = self._coord.get_lock(name)
|
|
with lock1:
|
|
self.assertFalse(lock2.acquire(blocking=False))
|
|
|
|
def test_get_lock_locked_twice(self):
|
|
name = self._get_random_uuid()
|
|
lock = self._coord.get_lock(name)
|
|
with lock:
|
|
self.assertFalse(lock.acquire(blocking=False))
|
|
|
|
def test_get_multiple_locks_with_same_coord(self):
|
|
name = self._get_random_uuid()
|
|
lock1 = self._coord.get_lock(name)
|
|
lock2 = self._coord.get_lock(name)
|
|
self.assertTrue(lock1.acquire())
|
|
self.assertFalse(lock2.acquire(blocking=False))
|
|
self.assertFalse(self._coord.get_lock(name).acquire(blocking=False))
|
|
self.assertTrue(lock1.release())
|
|
|
|
def test_ensure_acquire_release_return(self):
|
|
name = self._get_random_uuid()
|
|
lock1 = self._coord.get_lock(name)
|
|
self.assertTrue(lock1.acquire())
|
|
self.assertTrue(lock1.release())
|
|
self.assertFalse(lock1.release())
|
|
|
|
def test_get_lock_multiple_coords(self):
|
|
member_id2 = self._get_random_uuid()
|
|
client2 = tooz.coordination.get_coordinator(self.url,
|
|
member_id2)
|
|
client2.start()
|
|
|
|
lock_name = self._get_random_uuid()
|
|
lock = self._coord.get_lock(lock_name)
|
|
self.assertTrue(lock.acquire())
|
|
|
|
lock2 = client2.get_lock(lock_name)
|
|
self.assertFalse(lock2.acquire(blocking=False))
|
|
self.assertTrue(lock.release())
|
|
self.assertTrue(lock2.acquire(blocking=True))
|
|
self.assertTrue(lock2.release())
|
|
|
|
@staticmethod
|
|
def _get_random_uuid():
|
|
return str(uuid.uuid4()).encode('ascii')
|
|
|
|
|
|
class TestHook(testcase.TestCase):
|
|
def setUp(self):
|
|
super(TestHook, self).setUp()
|
|
self.hooks = tooz.coordination.Hooks()
|
|
self.triggered = False
|
|
|
|
def _trigger(self):
|
|
self.triggered = True
|
|
|
|
def test_register_hook(self):
|
|
self.assertEqual(self.hooks.run(), [])
|
|
self.assertFalse(self.triggered)
|
|
self.hooks.append(self._trigger)
|
|
self.assertEqual(self.hooks.run(), [None])
|
|
self.assertTrue(self.triggered)
|
|
|
|
def test_unregister_hook(self):
|
|
self.hooks.append(self._trigger)
|
|
self.assertEqual(self.hooks.run(), [None])
|
|
self.assertTrue(self.triggered)
|
|
self.triggered = False
|
|
self.hooks.remove(self._trigger)
|
|
self.assertEqual(self.hooks.run(), [])
|
|
self.assertFalse(self.triggered)
|