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