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# Copyright 2013 IBM Corp.
#
# 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.
from oslo.utils import timeutils
from nova import context
from nova import db
from nova import exception
from nova.objects import migration
from nova.tests.unit import fake_instance
from nova.tests.unit.objects import test_objects
NOW = timeutils.utcnow().replace(microsecond=0)
def fake_db_migration(**updates):
db_instance = {
'created_at': NOW,
'updated_at': None,
'deleted_at': None,
'deleted': False,
'id': 123,
'source_compute': 'compute-source',
'dest_compute': 'compute-dest',
'source_node': 'node-source',
'dest_node': 'node-dest',
'dest_host': 'host-dest',
'old_instance_type_id': 42,
'new_instance_type_id': 84,
'instance_uuid': 'fake-uuid',
'status': 'migrating',
}
if updates:
db_instance.update(updates)
return db_instance
class _TestMigrationObject(object):
def test_get_by_id(self):
ctxt = context.get_admin_context()
fake_migration = fake_db_migration()
self.mox.StubOutWithMock(db, 'migration_get')
db.migration_get(ctxt, fake_migration['id']).AndReturn(fake_migration)
self.mox.ReplayAll()
mig = migration.Migration.get_by_id(ctxt, fake_migration['id'])
self.compare_obj(mig, fake_migration)
def test_get_by_instance_and_status(self):
ctxt = context.get_admin_context()
fake_migration = fake_db_migration()
self.mox.StubOutWithMock(db, 'migration_get_by_instance_and_status')
db.migration_get_by_instance_and_status(ctxt,
fake_migration['id'],
'migrating'
).AndReturn(fake_migration)
self.mox.ReplayAll()
mig = migration.Migration.get_by_instance_and_status(
ctxt, fake_migration['id'], 'migrating')
self.compare_obj(mig, fake_migration)
def test_create(self):
ctxt = context.get_admin_context()
fake_migration = fake_db_migration()
self.mox.StubOutWithMock(db, 'migration_create')
db.migration_create(ctxt, {'source_compute': 'foo'}).AndReturn(
fake_migration)
self.mox.ReplayAll()
mig = migration.Migration()
mig.source_compute = 'foo'
mig.create(ctxt)
self.assertEqual(fake_migration['dest_compute'], mig.dest_compute)
def test_recreate_fails(self):
ctxt = context.get_admin_context()
fake_migration = fake_db_migration()
self.mox.StubOutWithMock(db, 'migration_create')
db.migration_create(ctxt, {'source_compute': 'foo'}).AndReturn(
fake_migration)
self.mox.ReplayAll()
mig = migration.Migration()
mig.source_compute = 'foo'
mig.create(ctxt)
self.assertRaises(exception.ObjectActionError, mig.create,
self.context)
def test_save(self):
ctxt = context.get_admin_context()
fake_migration = fake_db_migration()
self.mox.StubOutWithMock(db, 'migration_update')
db.migration_update(ctxt, 123, {'source_compute': 'foo'}
).AndReturn(fake_migration)
self.mox.ReplayAll()
mig = migration.Migration()
mig.id = 123
mig.source_compute = 'foo'
mig.save(ctxt)
self.assertEqual(fake_migration['dest_compute'], mig.dest_compute)
def test_instance(self):
ctxt = context.get_admin_context()
fake_migration = fake_db_migration()
fake_inst = fake_instance.fake_db_instance()
self.mox.StubOutWithMock(db, 'instance_get_by_uuid')
db.instance_get_by_uuid(ctxt, fake_migration['instance_uuid'],
columns_to_join=['info_cache',
'security_groups'],
use_slave=False
).AndReturn(fake_inst)
mig = migration.Migration._from_db_object(ctxt,
migration.Migration(),
fake_migration)
mig._context = ctxt
self.mox.ReplayAll()
self.assertEqual(mig.instance.host, fake_inst['host'])
def test_get_unconfirmed_by_dest_compute(self):
ctxt = context.get_admin_context()
fake_migration = fake_db_migration()
db_migrations = [fake_migration, dict(fake_migration, id=456)]
self.mox.StubOutWithMock(
db, 'migration_get_unconfirmed_by_dest_compute')
db.migration_get_unconfirmed_by_dest_compute(
ctxt, 'window', 'foo',
use_slave=False).AndReturn(db_migrations)
self.mox.ReplayAll()
migrations = (
migration.MigrationList.get_unconfirmed_by_dest_compute(
ctxt, 'window', 'foo', use_slave=False))
self.assertEqual(2, len(migrations))
for index, db_migration in enumerate(db_migrations):
self.compare_obj(migrations[index], db_migration)
def test_get_in_progress_by_host_and_node(self):
ctxt = context.get_admin_context()
fake_migration = fake_db_migration()
db_migrations = [fake_migration, dict(fake_migration, id=456)]
self.mox.StubOutWithMock(
db, 'migration_get_in_progress_by_host_and_node')
db.migration_get_in_progress_by_host_and_node(
ctxt, 'host', 'node').AndReturn(db_migrations)
self.mox.ReplayAll()
migrations = (
migration.MigrationList.get_in_progress_by_host_and_node(
ctxt, 'host', 'node'))
self.assertEqual(2, len(migrations))
for index, db_migration in enumerate(db_migrations):
self.compare_obj(migrations[index], db_migration)
def test_get_by_filters(self):
ctxt = context.get_admin_context()
fake_migration = fake_db_migration()
db_migrations = [fake_migration, dict(fake_migration, id=456)]
self.mox.StubOutWithMock(
db, 'migration_get_all_by_filters')
filters = {'foo': 'bar'}
db.migration_get_all_by_filters(ctxt, filters).AndReturn(db_migrations)
self.mox.ReplayAll()
migrations = migration.MigrationList.get_by_filters(ctxt, filters)
self.assertEqual(2, len(migrations))
for index, db_migration in enumerate(db_migrations):
self.compare_obj(migrations[index], db_migration)
class TestMigrationObject(test_objects._LocalTest,
_TestMigrationObject):
pass
class TestRemoteMigrationObject(test_objects._RemoteTest,
_TestMigrationObject):
pass
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