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# Copyright 2015 Hewlett-Packard Development Company, L.P.
#
# Author: Endre Karlson <endre.karlson@hpe.com>
#
# 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.
"""
Unit test Producer tasks
"""
import datetime
from unittest import mock
import fixtures
import oslotest.base
from oslo_config import cfg
from oslo_config import fixture as cfg_fixture
from oslo_utils import timeutils
from designate import context
from designate import rpc
from designate.central import rpcapi as central_api
from designate.producer import tasks
from designate.tests.unit import RoObject
from designate.utils import generate_uuid
DUMMY_TASK_GROUP = cfg.OptGroup(
name='producer_task:dummy',
title='Configuration for Producer Task: Dummy Task'
)
DUMMY_TASK_OPTS = [
cfg.IntOpt('per_page', default=100,
help='Default amount of results returned per page'),
]
CONF = cfg.CONF
CONF.register_group(DUMMY_TASK_GROUP)
CONF.register_opts(DUMMY_TASK_OPTS, group=DUMMY_TASK_GROUP)
class DummyTask(tasks.PeriodicTask):
"""Dummy task used to test helper functions"""
__plugin_name__ = 'dummy'
class PeriodicTest(oslotest.base.BaseTestCase):
def setUp(self):
super(PeriodicTest, self).setUp()
self.useFixture(cfg_fixture.Config(CONF))
self.task = DummyTask()
self.task.my_partitions = range(0, 10)
@mock.patch.object(central_api.CentralAPI, 'get_instance')
def test_iter_zones_no_items(self, get_central):
# Test that the iteration code is working properly.
central = mock.Mock()
get_central.return_value = central
ctxt = mock.Mock()
iterer = self.task._iter_zones(ctxt)
central.find_zones.return_value = []
self.assertRaises(StopIteration, next, iterer)
@mock.patch.object(central_api.CentralAPI, 'get_instance')
def test_iter_zones(self, get_central):
# Test that the iteration code is working properly.
central = mock.Mock()
get_central.return_value = central
ctxt = mock.Mock()
iterer = self.task._iter_zones(ctxt)
items = [RoObject(id=generate_uuid()) for i in range(0, 5)]
central.find_zones.return_value = items
# Iterate through the items causing the "paging" to be done.
list(map(lambda i: next(iterer), items))
central.find_zones.assert_called_once_with(
ctxt, {"shard": "BETWEEN 0,9"}, limit=100)
central.find_zones.reset_mock()
# Call next on the iterator and see it trying to load a new page.
# Also this will raise a StopIteration since there are no more items.
central.find_zones.return_value = []
self.assertRaises(StopIteration, next, iterer)
central.find_zones.assert_called_once_with(
ctxt,
{"shard": "BETWEEN 0,9"},
marker=items[-1].id,
limit=100
)
def test_my_range(self):
self.assertEqual((0, 9), self.task._my_range())
class PeriodicExistsTest(oslotest.base.BaseTestCase):
def setUp(self):
super(PeriodicExistsTest, self).setUp()
self.useFixture(cfg_fixture.Config(CONF))
CONF.set_override('interval', 5, 'producer_task:periodic_exists')
# Mock a ctxt...
self.ctxt = mock.Mock()
self.useFixture(fixtures.MockPatchObject(
context.DesignateContext, 'get_admin_context',
return_value=self.ctxt
))
# Patch get_notifier so that it returns a mock..
self.mock_notifier = mock.Mock()
self.useFixture(fixtures.MockPatchObject(
rpc, 'get_notifier',
return_value=self.mock_notifier
))
self.task = tasks.PeriodicExistsTask()
self.task.my_partitions = range(0, 10)
# Install our own period results to verify that the end / start is
# correct below
self.period = tasks.PeriodicExistsTask._get_period(2)
self.period_data = {
"audit_period_beginning": self.period[0],
"audit_period_ending": self.period[1]
}
self.useFixture(fixtures.MockPatchObject(
tasks.PeriodicExistsTask, '_get_period',
return_value=self.period
))
def test_emit_exists(self):
zone = RoObject(id=generate_uuid())
with mock.patch.object(self.task, '_iter_zones') as iter_:
iter_.return_value = [zone]
self.task()
data = dict(zone)
data.update(self.period_data)
# Ensure both the old (domain) and new (zone) events are fired
# until the old is fully deprecated.
self.mock_notifier.info.assert_any_call(
self.ctxt, "dns.domain.exists", data)
self.mock_notifier.info.assert_any_call(
self.ctxt, "dns.zone.exists", data)
def test_emit_exists_no_zones(self):
with mock.patch.object(self.task, '_iter_zones') as iter_:
iter_.return_value = []
self.task()
self.assertFalse(self.mock_notifier.info.called)
def test_emit_exists_multiple_zones(self):
zones = [RoObject()] * 10
with mock.patch.object(self.task, '_iter_zones') as iter_:
iter_.return_value = zones
self.task()
for zone in zones:
data = dict(zone)
data.update(self.period_data)
# Ensure both the old (domain) and new (zone) events are fired
# until the old is fully deprecated.
self.mock_notifier.info.assert_any_call(
self.ctxt, "dns.domain.exists", data)
self.mock_notifier.info.assert_any_call(
self.ctxt, "dns.zone.exists", data)
class PeriodicSecondaryRefreshTest(oslotest.base.BaseTestCase):
def setUp(self):
super(PeriodicSecondaryRefreshTest, self).setUp()
self.useFixture(cfg_fixture.Config(CONF))
# Mock a ctxt...
self.ctxt = mock.Mock()
self.useFixture(fixtures.MockPatchObject(
context.DesignateContext, 'get_admin_context',
return_value=self.ctxt
))
# Mock a central...
self.central = mock.Mock()
self.useFixture(fixtures.MockPatchObject(
central_api.CentralAPI, 'get_instance',
return_value=self.central
))
self.task = tasks.PeriodicSecondaryRefreshTask()
self.task.my_partitions = 0, 9
def test_refresh_no_zone(self):
with mock.patch.object(self.task, '_iter') as _iter:
_iter.return_value = []
self.task()
self.assertFalse(self.central.xfr_zone.called)
def test_refresh_zone(self):
transferred = timeutils.utcnow(True) - datetime.timedelta(minutes=62)
zone = RoObject(
id=generate_uuid(),
transferred_at=datetime.datetime.isoformat(transferred),
refresh=3600)
with mock.patch.object(self.task, '_iter') as _iter:
_iter.return_value = [zone]
self.task()
self.central.xfr_zone.assert_called_once_with(self.ctxt, zone.id)
def test_refresh_zone_not_expired(self):
# Dummy zone object
transferred = timeutils.utcnow(True) - datetime.timedelta(minutes=50)
zone = RoObject(
id=generate_uuid(),
transferred_at=datetime.datetime.isoformat(transferred),
refresh=3600
)
with mock.patch.object(self.task, '_iter') as _iter:
_iter.return_value = [zone]
self.task()
self.assertFalse(self.central.xfr_zone.called)
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