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# 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 datetime
from oslo_utils.fixture import uuidsentinel
from nova.compute import migration_list
from nova import context
from nova import exception
from nova import objects
from nova import test
class TestMigrationListObjects(test.TestCase):
NUMBER_OF_CELLS = 3
def setUp(self):
super(TestMigrationListObjects, self).setUp()
self.context = context.RequestContext('fake', 'fake')
self.num_migrations = 3
self.migrations = []
start = datetime.datetime(1985, 10, 25, 1, 21, 0)
self.cells = objects.CellMappingList.get_all(self.context)
# Create three migrations in each of the real cells. Leave the
# first cell empty to make sure we don't break with an empty
# one.
for cell in self.cells[1:]:
for i in range(0, self.num_migrations):
with context.target_cell(self.context, cell) as cctx:
mig = objects.Migration(cctx,
uuid=getattr(
uuidsentinel,
'%s_mig%i' % (cell.name, i)
),
created_at=start,
migration_type='resize',
instance_uuid=getattr(
uuidsentinel,
'inst%i' % i)
)
mig.create()
self.migrations.append(mig)
def test_get_instance_objects_sorted(self):
filters = {}
limit = None
marker = None
sort_keys = ['uuid']
sort_dirs = ['asc']
migs = migration_list.get_migration_objects_sorted(
self.context, filters, limit, marker,
sort_keys, sort_dirs)
found_uuids = [x.uuid for x in migs]
had_uuids = sorted([x.uuid for x in self.migrations])
self.assertEqual(had_uuids, found_uuids)
def test_get_instance_objects_sorted_paged(self):
"""Query a full first page and ensure an empty second one.
This uses created_at which is enforced to be the same across
each migration by setUp(). This will help make sure we still
have a stable ordering, even when we only claim to care about
created_at.
"""
migp1 = migration_list.get_migration_objects_sorted(
self.context, {}, None, None,
['created_at'], ['asc'])
self.assertEqual(len(self.migrations), len(migp1))
migp2 = migration_list.get_migration_objects_sorted(
self.context, {}, None, migp1[-1].uuid,
['created_at'], ['asc'])
self.assertEqual(0, len(migp2))
def test_get_marker_record_not_found(self):
marker = uuidsentinel.not_found
self.assertRaises(exception.MarkerNotFound,
migration_list.get_migration_objects_sorted,
self.context, {}, None, marker, None, None)
def test_get_sorted_with_limit(self):
migs = migration_list.get_migration_objects_sorted(
self.context, {}, 2, None, ['uuid'], ['asc'])
uuids = [mig.uuid for mig in migs]
had_uuids = [mig.uuid for mig in self.migrations]
self.assertEqual(sorted(had_uuids)[:2], uuids)
self.assertEqual(2, len(uuids))
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