nova/nova/tests/unit/scheduler/filters/test_type_filters.py

135 lines
5.9 KiB
Python

# 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 mock
from nova import objects
from nova.scheduler.filters import type_filter
from nova import test
from nova.tests.unit.scheduler import fakes
from nova.tests import uuidsentinel as uuids
class TestTypeFilter(test.NoDBTestCase):
def test_type_filter(self):
self.filt_cls = type_filter.TypeAffinityFilter()
host = fakes.FakeHostState('fake_host', 'fake_node', {})
host.instances = {}
target_id = 1
spec_obj = objects.RequestSpec(
context=mock.MagicMock(),
flavor=objects.Flavor(id=target_id))
# True since no instances on host
self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
# Add an instance with the same instance_type_id
inst1 = objects.Instance(uuid=uuids.instance_1,
instance_type_id=target_id)
host.instances = {inst1.uuid: inst1}
# True since only same instance_type_id on host
self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
# Add an instance with a different instance_type_id
diff_type = target_id + 1
inst2 = objects.Instance(uuid=uuids.instance_2,
instance_type_id=diff_type)
host.instances.update({inst2.uuid: inst2})
# False since host now has an instance of a different type
self.assertFalse(self.filt_cls.host_passes(host, spec_obj))
@mock.patch('nova.scheduler.filters.utils.aggregate_values_from_key')
def test_aggregate_type_filter_no_metadata(self, agg_mock):
self.filt_cls = type_filter.AggregateTypeAffinityFilter()
spec_obj = objects.RequestSpec(
context=mock.sentinel.ctx,
flavor=objects.Flavor(name='fake1'))
host = fakes.FakeHostState('fake_host', 'fake_node', {})
# tests when no instance_type is defined for aggregate
agg_mock.return_value = set([])
# True as no instance_type set for aggregate
self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
agg_mock.assert_called_once_with(host, 'instance_type')
@mock.patch('nova.scheduler.filters.utils.aggregate_values_from_key')
def test_aggregate_type_filter_single_instance_type(self, agg_mock):
self.filt_cls = type_filter.AggregateTypeAffinityFilter()
spec_obj = objects.RequestSpec(
context=mock.sentinel.ctx,
flavor=objects.Flavor(name='fake1'))
spec_obj2 = objects.RequestSpec(
context=mock.sentinel.ctx,
flavor=objects.Flavor(name='fake2'))
host = fakes.FakeHostState('fake_host', 'fake_node', {})
# tests when a single instance_type is defined for an aggregate
# using legacy single value syntax
agg_mock.return_value = set(['fake1'])
# True as instance_type is allowed for aggregate
self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
# False as instance_type is not allowed for aggregate
self.assertFalse(self.filt_cls.host_passes(host, spec_obj2))
@mock.patch('nova.scheduler.filters.utils.aggregate_values_from_key')
def test_aggregate_type_filter_multi_aggregate(self, agg_mock):
self.filt_cls = type_filter.AggregateTypeAffinityFilter()
spec_obj = objects.RequestSpec(
context=mock.sentinel.ctx,
flavor=objects.Flavor(name='fake1'))
spec_obj2 = objects.RequestSpec(
context=mock.sentinel.ctx,
flavor=objects.Flavor(name='fake2'))
spec_obj3 = objects.RequestSpec(
context=mock.sentinel.ctx,
flavor=objects.Flavor(name='fake3'))
host = fakes.FakeHostState('fake_host', 'fake_node', {})
# tests when a single instance_type is defined for multiple aggregates
# using legacy single value syntax
agg_mock.return_value = set(['fake1', 'fake2'])
# True as instance_type is allowed for first aggregate
self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
# True as instance_type is allowed for second aggregate
self.assertTrue(self.filt_cls.host_passes(host, spec_obj2))
# False as instance_type is not allowed for aggregates
self.assertFalse(self.filt_cls.host_passes(host, spec_obj3))
@mock.patch('nova.scheduler.filters.utils.aggregate_values_from_key')
def test_aggregate_type_filter_multi_instance_type(self, agg_mock):
self.filt_cls = type_filter.AggregateTypeAffinityFilter()
spec_obj = objects.RequestSpec(
context=mock.sentinel.ctx,
flavor=objects.Flavor(name='fake1'))
spec_obj2 = objects.RequestSpec(
context=mock.sentinel.ctx,
flavor=objects.Flavor(name='fake2'))
spec_obj3 = objects.RequestSpec(
context=mock.sentinel.ctx,
flavor=objects.Flavor(name='fake3'))
host = fakes.FakeHostState('fake_host', 'fake_node', {})
# tests when multiple instance_types are defined for aggregate
agg_mock.return_value = set(['fake1,fake2'])
# True as instance_type is allowed for aggregate
self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
# True as instance_type is allowed for aggregate
self.assertTrue(self.filt_cls.host_passes(host, spec_obj2))
# False as instance_type is not allowed for aggregate
self.assertFalse(self.filt_cls.host_passes(host, spec_obj3))