zuul/tests/unit/test_zk.py

83 lines
2.6 KiB
Python

# Copyright 2019 Red Hat, 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.
import testtools
import zuul.zk
from zuul import model
from tests.base import BaseTestCase, ChrootedKazooFixture
class TestZK(BaseTestCase):
def setUp(self):
super().setUp()
self.zk_chroot_fixture = self.useFixture(
ChrootedKazooFixture(self.id()))
self.zk_config = '%s:%s%s' % (
self.zk_chroot_fixture.zookeeper_host,
self.zk_chroot_fixture.zookeeper_port,
self.zk_chroot_fixture.zookeeper_chroot)
self.zk = zuul.zk.ZooKeeper(enable_cache=True)
self.addCleanup(self.zk.disconnect)
self.zk.connect(self.zk_config)
def _createRequest(self):
req = model.HoldRequest()
req.count = 1
req.reason = 'some reason'
req.expiration = 1
return req
def test_hold_requests_api(self):
# Test no requests returns empty list
self.assertEqual([], self.zk.getHoldRequests())
# Test get on non-existent request is None
self.assertIsNone(self.zk.getHoldRequest('anything'))
# Test creating a new request
req1 = self._createRequest()
self.zk.storeHoldRequest(req1)
self.assertIsNotNone(req1.id)
self.assertEqual(1, len(self.zk.getHoldRequests()))
# Test getting the request
req2 = self.zk.getHoldRequest(req1.id)
self.assertEqual(req1.toDict(), req2.toDict())
# Test updating the request
req2.reason = 'a new reason'
self.zk.storeHoldRequest(req2)
req2 = self.zk.getHoldRequest(req2.id)
self.assertNotEqual(req1.reason, req2.reason)
# Test lock operations
self.zk.lockHoldRequest(req2, blocking=False)
with testtools.ExpectedException(
zuul.zk.LockException,
"Timeout trying to acquire lock .*"
):
self.zk.lockHoldRequest(req2, blocking=True, timeout=2)
self.zk.unlockHoldRequest(req2)
self.assertIsNone(req2.lock)
# Test deleting the request
self.zk.deleteHoldRequest(req1)
self.assertEqual([], self.zk.getHoldRequests())