nova-solver-scheduler/nova/tests/scheduler/solvers/constraints/test_pci_passthrough_constr...

57 lines
2.4 KiB
Python

# Copyright (c) 2014 Cisco Systems, Inc.
# 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.
import mock
from nova.pci import pci_stats
from nova.scheduler.solvers.constraints import pci_passthrough_constraint
from nova import test
from nova.tests.scheduler import solver_scheduler_fakes as fakes
class TestPciPassthroughConstraint(test.NoDBTestCase):
def setUp(self):
super(TestPciPassthroughConstraint, self).setUp()
self.constraint_cls = \
pci_passthrough_constraint.PciPassthroughConstraint
self._generate_fake_constraint_input()
def _generate_fake_constraint_input(self):
requests = [{'count': 1, 'spec': [{'vendor_id': '8086'}]}]
self.fake_filter_properties = {
'pci_requests': requests,
'instance_uuids': ['fake_uuid_%s' % x for x in range(2)],
'num_instances': 2}
host1 = fakes.FakeSolverSchedulerHostState('host1', 'node1',
{'pci_stats': pci_stats.PciDeviceStats()})
host2 = fakes.FakeSolverSchedulerHostState('host2', 'node1',
{'pci_stats': pci_stats.PciDeviceStats()})
host3 = fakes.FakeSolverSchedulerHostState('host3', 'node1',
{'pci_stats': pci_stats.PciDeviceStats()})
self.fake_hosts = [host1, host2, host3]
@mock.patch('nova.pci.pci_stats.PciDeviceStats.support_requests')
@mock.patch('nova.pci.pci_stats.PciDeviceStats.apply_requests')
def test_get_constraint_matrix(self, apl_reqs, spt_reqs):
spt_reqs.side_effect = [True, False] + [False] + [True, True, False]
expected_cons_mat = [
[True, False],
[False, False],
[True, True]]
cons_mat = self.constraint_cls().get_constraint_matrix(
self.fake_hosts, self.fake_filter_properties)
self.assertEqual(expected_cons_mat, cons_mat)