nova-solver-scheduler/nova_solverscheduler/tests/scheduler/solvers/constraints/test_aggregate_disk.py

70 lines
3.0 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 import context
from nova import test
from nova_solverscheduler.scheduler.solvers.constraints import aggregate_disk
from nova_solverscheduler.tests.scheduler import solver_scheduler_fakes \
as fakes
class TestAggregateDiskConstraint(test.NoDBTestCase):
def setUp(self):
super(TestAggregateDiskConstraint, self).setUp()
self.constraint_cls = aggregate_disk.AggregateDiskConstraint
self.context = context.RequestContext('fake', 'fake')
self._generate_fake_constraint_input()
def _generate_fake_constraint_input(self):
self.fake_filter_properties = {
'context': self.context,
'instance_type': {'root_gb': 1, 'ephemeral_gb': 1, 'swap': 0},
'instance_uuids': ['fake_uuid_%s' % x for x in range(2)],
'num_instances': 2}
host1 = fakes.FakeSolverSchedulerHostState('host1', 'node1',
{'free_disk_mb': 1024, 'total_usable_disk_gb': 2})
host2 = fakes.FakeSolverSchedulerHostState('host2', 'node1',
{'free_disk_mb': 1024, 'total_usable_disk_gb': 2})
host3 = fakes.FakeSolverSchedulerHostState('host3', 'node1',
{'free_disk_mb': 1024, 'total_usable_disk_gb': 2})
self.fake_hosts = [host1, host2, host3]
@mock.patch('nova_solverscheduler.scheduler.solvers.utils.'
'aggregate_values_from_key')
def test_get_constraint_matrix(self, agg_mock):
self.flags(disk_allocation_ratio=1.0)
def _agg_mock_side_effect(*args, **kwargs):
if args[0].host == 'host1':
return set(['2.0', '3.0'])
if args[0].host == 'host2':
return set(['3.0'])
if args[0].host == 'host3':
return set([])
agg_mock.side_effect = _agg_mock_side_effect
expected_cons_mat = [
[True, False],
[True, True],
[False, False]]
cons_mat = self.constraint_cls().get_constraint_matrix(
self.fake_hosts, self.fake_filter_properties)
agg_mock.assert_any_call(self.fake_hosts[0], 'disk_allocation_ratio')
agg_mock.assert_any_call(self.fake_hosts[1], 'disk_allocation_ratio')
agg_mock.assert_any_call(self.fake_hosts[2], 'disk_allocation_ratio')
self.assertEqual(expected_cons_mat, cons_mat)