220 lines
8.4 KiB
Python
220 lines
8.4 KiB
Python
# Copyright 2013 Hewlett-Packard Development Company, L.P.
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# 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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"""Tests for manipulating Conductors via the DB API"""
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import datetime
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import mock
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from oslo_utils import timeutils
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from ironic.common import exception
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from ironic.tests.unit.db import base
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from ironic.tests.unit.db import utils
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class DbConductorTestCase(base.DbTestCase):
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def test_register_conductor_existing_fails(self):
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c = utils.get_test_conductor()
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self.dbapi.register_conductor(c)
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self.assertRaises(
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exception.ConductorAlreadyRegistered,
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self.dbapi.register_conductor,
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c)
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def test_register_conductor_override(self):
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c = utils.get_test_conductor()
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self.dbapi.register_conductor(c)
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self.dbapi.register_conductor(c, update_existing=True)
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def _create_test_cdr(self, **kwargs):
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c = utils.get_test_conductor(**kwargs)
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return self.dbapi.register_conductor(c)
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def test_get_conductor(self):
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c1 = self._create_test_cdr()
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c2 = self.dbapi.get_conductor(c1.hostname)
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self.assertEqual(c1.id, c2.id)
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def test_get_conductor_not_found(self):
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self._create_test_cdr()
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self.assertRaises(
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exception.ConductorNotFound,
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self.dbapi.get_conductor,
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'bad-hostname')
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def test_unregister_conductor(self):
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c = self._create_test_cdr()
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self.dbapi.unregister_conductor(c.hostname)
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self.assertRaises(
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exception.ConductorNotFound,
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self.dbapi.unregister_conductor,
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c.hostname)
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@mock.patch.object(timeutils, 'utcnow', autospec=True)
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def test_touch_conductor(self, mock_utcnow):
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test_time = datetime.datetime(2000, 1, 1, 0, 0)
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mock_utcnow.return_value = test_time
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c = self._create_test_cdr()
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self.assertEqual(test_time, timeutils.normalize_time(c.updated_at))
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test_time = datetime.datetime(2000, 1, 1, 0, 1)
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mock_utcnow.return_value = test_time
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self.dbapi.touch_conductor(c.hostname)
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c = self.dbapi.get_conductor(c.hostname)
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self.assertEqual(test_time, timeutils.normalize_time(c.updated_at))
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def test_touch_conductor_not_found(self):
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# A conductor's heartbeat will not create a new record,
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# it will only update existing ones
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self._create_test_cdr()
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self.assertRaises(
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exception.ConductorNotFound,
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self.dbapi.touch_conductor,
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'bad-hostname')
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def test_touch_offline_conductor(self):
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# Ensure that a conductor's periodic heartbeat task can make the
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# conductor visible again, even if it was spuriously marked offline
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c = self._create_test_cdr()
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self.dbapi.unregister_conductor(c.hostname)
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self.assertRaises(
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exception.ConductorNotFound,
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self.dbapi.get_conductor,
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c.hostname)
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self.dbapi.touch_conductor(c.hostname)
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self.dbapi.get_conductor(c.hostname)
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def test_clear_node_reservations_for_conductor(self):
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node1 = self.dbapi.create_node({'reservation': 'hostname1'})
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node2 = self.dbapi.create_node({'reservation': 'hostname2'})
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node3 = self.dbapi.create_node({'reservation': None})
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self.dbapi.clear_node_reservations_for_conductor('hostname1')
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node1 = self.dbapi.get_node_by_id(node1.id)
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node2 = self.dbapi.get_node_by_id(node2.id)
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node3 = self.dbapi.get_node_by_id(node3.id)
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self.assertIsNone(node1.reservation)
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self.assertEqual('hostname2', node2.reservation)
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self.assertIsNone(node3.reservation)
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@mock.patch.object(timeutils, 'utcnow', autospec=True)
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def test_get_active_driver_dict_one_host_no_driver(self, mock_utcnow):
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h = 'fake-host'
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expected = {}
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mock_utcnow.return_value = datetime.datetime.utcnow()
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self._create_test_cdr(hostname=h, drivers=[])
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result = self.dbapi.get_active_driver_dict()
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self.assertEqual(expected, result)
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@mock.patch.object(timeutils, 'utcnow', autospec=True)
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def test_get_active_driver_dict_one_host_one_driver(self, mock_utcnow):
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h = 'fake-host'
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d = 'fake-driver'
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expected = {d: set([h])}
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mock_utcnow.return_value = datetime.datetime.utcnow()
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self._create_test_cdr(hostname=h, drivers=[d])
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result = self.dbapi.get_active_driver_dict()
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self.assertEqual(expected, result)
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@mock.patch.object(timeutils, 'utcnow', autospec=True)
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def test_get_active_driver_dict_one_host_many_drivers(self, mock_utcnow):
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h = 'fake-host'
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d1 = 'driver-one'
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d2 = 'driver-two'
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expected = {d1: set([h]), d2: set([h])}
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mock_utcnow.return_value = datetime.datetime.utcnow()
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self._create_test_cdr(hostname=h, drivers=[d1, d2])
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result = self.dbapi.get_active_driver_dict()
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self.assertEqual(expected, result)
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@mock.patch.object(timeutils, 'utcnow', autospec=True)
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def test_get_active_driver_dict_many_hosts_one_driver(self, mock_utcnow):
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h1 = 'host-one'
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h2 = 'host-two'
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d = 'fake-driver'
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expected = {d: set([h1, h2])}
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mock_utcnow.return_value = datetime.datetime.utcnow()
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self._create_test_cdr(id=1, hostname=h1, drivers=[d])
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self._create_test_cdr(id=2, hostname=h2, drivers=[d])
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result = self.dbapi.get_active_driver_dict()
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self.assertEqual(expected, result)
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@mock.patch.object(timeutils, 'utcnow', autospec=True)
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def test_get_active_driver_dict_many_hosts_and_drivers(self, mock_utcnow):
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h1 = 'host-one'
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h2 = 'host-two'
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h3 = 'host-three'
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d1 = 'driver-one'
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d2 = 'driver-two'
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expected = {d1: set([h1, h2]), d2: set([h2, h3])}
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mock_utcnow.return_value = datetime.datetime.utcnow()
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self._create_test_cdr(id=1, hostname=h1, drivers=[d1])
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self._create_test_cdr(id=2, hostname=h2, drivers=[d1, d2])
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self._create_test_cdr(id=3, hostname=h3, drivers=[d2])
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result = self.dbapi.get_active_driver_dict()
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self.assertEqual(expected, result)
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@mock.patch.object(timeutils, 'utcnow', autospec=True)
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def test_get_active_driver_dict_with_old_conductor(self, mock_utcnow):
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past = datetime.datetime(2000, 1, 1, 0, 0)
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present = past + datetime.timedelta(minutes=2)
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d = 'common-driver'
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h1 = 'old-host'
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d1 = 'old-driver'
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mock_utcnow.return_value = past
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self._create_test_cdr(id=1, hostname=h1, drivers=[d, d1])
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h2 = 'new-host'
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d2 = 'new-driver'
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mock_utcnow.return_value = present
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self._create_test_cdr(id=2, hostname=h2, drivers=[d, d2])
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# verify that old-host does not show up in current list
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one_minute = 60
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expected = {d: set([h2]), d2: set([h2])}
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result = self.dbapi.get_active_driver_dict(interval=one_minute)
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self.assertEqual(expected, result)
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# change the interval, and verify that old-host appears
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two_minute = one_minute * 2
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expected = {d: set([h1, h2]), d1: set([h1]), d2: set([h2])}
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result = self.dbapi.get_active_driver_dict(interval=two_minute)
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self.assertEqual(expected, result)
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@mock.patch.object(timeutils, 'utcnow', autospec=True)
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def test_get_offline_conductors(self, mock_utcnow):
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self.config(heartbeat_timeout=60, group='conductor')
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time_ = datetime.datetime(2000, 1, 1, 0, 0)
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mock_utcnow.return_value = time_
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c = self._create_test_cdr()
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# Only 30 seconds passed since last heartbeat, it's still
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# considered alive
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mock_utcnow.return_value = time_ + datetime.timedelta(seconds=30)
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self.assertEqual([], self.dbapi.get_offline_conductors())
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# 61 seconds passed since last heartbeat, it's dead
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mock_utcnow.return_value = time_ + datetime.timedelta(seconds=61)
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self.assertEqual([c.hostname], self.dbapi.get_offline_conductors())
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