nova/nova/tests/objects/test_instance_group.py

329 lines
14 KiB
Python

# Copyright (c) 2013 OpenStack Foundation
#
# 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 uuid
from nova.compute import flavors
from nova import context
from nova import db
from nova import exception
from nova.objects import instance_group
from nova import test
from nova.tests.objects import test_objects
from nova.tests import utils as tests_utils
class _TestInstanceGroupObjects(test.TestCase):
def setUp(self):
super(_TestInstanceGroupObjects, self).setUp()
self.user_id = 'fake_user'
self.project_id = 'fake_project'
self.context = context.RequestContext(self.user_id, self.project_id)
def _get_default_values(self):
return {'name': 'fake_name',
'user_id': self.user_id,
'project_id': self.project_id}
def _create_instance_group(self, context, values, policies=None,
members=None):
return db.instance_group_create(context, values, policies=policies,
members=members)
def test_get_by_uuid(self):
values = self._get_default_values()
policies = ['policy1', 'policy2']
members = ['instance_id1', 'instance_id2']
db_result = self._create_instance_group(self.context, values,
policies=policies,
members=members)
obj_result = instance_group.InstanceGroup.get_by_uuid(self.context,
db_result.uuid)
self.assertEqual(obj_result.members, members)
self.assertEqual(obj_result.policies, policies)
def test_get_by_instance_uuid(self):
values = self._get_default_values()
policies = ['policy1', 'policy2']
members = ['instance_id1', 'instance_id2']
db_result = self._create_instance_group(self.context, values,
policies=policies,
members=members)
obj_result = instance_group.InstanceGroup.get_by_instance_uuid(
self.context, 'instance_id1')
self.assertEqual(obj_result.uuid, db_result.uuid)
def test_refresh(self):
values = self._get_default_values()
db_result = self._create_instance_group(self.context, values)
obj_result = instance_group.InstanceGroup.get_by_uuid(self.context,
db_result.uuid)
self.assertEqual(obj_result.name, 'fake_name')
values = {'name': 'new_name', 'user_id': 'new_user',
'project_id': 'new_project'}
db.instance_group_update(self.context, db_result['uuid'],
values)
obj_result.refresh()
self.assertEqual(obj_result.name, 'new_name')
self.assertEqual(set([]), obj_result.obj_what_changed())
def test_save_simple(self):
values = self._get_default_values()
db_result = self._create_instance_group(self.context, values)
obj_result = instance_group.InstanceGroup.get_by_uuid(self.context,
db_result.uuid)
self.assertEqual(obj_result.name, 'fake_name')
obj_result.name = 'new_name'
obj_result.save()
result = db.instance_group_get(self.context, db_result['uuid'])
self.assertEqual(result['name'], 'new_name')
def test_save_policies(self):
values = self._get_default_values()
db_result = self._create_instance_group(self.context, values)
obj_result = instance_group.InstanceGroup.get_by_uuid(self.context,
db_result.uuid)
policies = ['policy1', 'policy2']
obj_result.policies = policies
obj_result.save()
result = db.instance_group_get(self.context, db_result['uuid'])
self.assertEqual(result['policies'], policies)
def test_save_members(self):
values = self._get_default_values()
db_result = self._create_instance_group(self.context, values)
obj_result = instance_group.InstanceGroup.get_by_uuid(self.context,
db_result.uuid)
members = ['instance1', 'instance2']
obj_result.members = members
obj_result.save()
result = db.instance_group_get(self.context, db_result['uuid'])
self.assertEqual(result['members'], members)
def test_create(self):
group1 = instance_group.InstanceGroup()
group1.uuid = 'fake-uuid'
group1.name = 'fake-name'
group1.create(self.context)
group2 = instance_group.InstanceGroup.get_by_uuid(self.context,
group1.uuid)
self.assertEqual(group1.id, group2.id)
self.assertEqual(group1.uuid, group2.uuid)
self.assertEqual(group1.name, group2.name)
result = db.instance_group_get(self.context, group1.uuid)
self.assertEqual(group1.id, result.id)
self.assertEqual(group1.uuid, result.uuid)
self.assertEqual(group1.name, result.name)
def test_create_with_policies(self):
group1 = instance_group.InstanceGroup()
group1.policies = ['policy1', 'policy2']
group1.create(self.context)
group2 = instance_group.InstanceGroup.get_by_uuid(self.context,
group1.uuid)
self.assertEqual(group1.id, group2.id)
self.assertEqual(group1.policies, group2.policies)
def test_create_with_members(self):
group1 = instance_group.InstanceGroup()
group1.members = ['instance1', 'instance2']
group1.create(self.context)
group2 = instance_group.InstanceGroup.get_by_uuid(self.context,
group1.uuid)
self.assertEqual(group1.id, group2.id)
self.assertEqual(group1.members, group2.members)
def test_recreate_fails(self):
group = instance_group.InstanceGroup()
group.create(self.context)
self.assertRaises(exception.ObjectActionError, group.create,
self.context)
def test_destroy(self):
values = self._get_default_values()
result = self._create_instance_group(self.context, values)
group = instance_group.InstanceGroup()
group.id = result.id
group.uuid = result.uuid
group.destroy(self.context)
self.assertRaises(exception.InstanceGroupNotFound,
db.instance_group_get, self.context, result['uuid'])
def _populate_instances(self):
instances = [(str(uuid.uuid4()), 'f1', 'p1'),
(str(uuid.uuid4()), 'f2', 'p1'),
(str(uuid.uuid4()), 'f3', 'p2'),
(str(uuid.uuid4()), 'f4', 'p2')]
for instance in instances:
values = self._get_default_values()
values['uuid'] = instance[0]
values['name'] = instance[1]
values['project_id'] = instance[2]
self._create_instance_group(self.context, values)
return instances
def test_list_all(self):
self._populate_instances()
inst_list = instance_group.InstanceGroupList.get_all(self.context)
groups = db.instance_group_get_all(self.context)
self.assertEqual(len(groups), len(inst_list.objects))
self.assertEqual(len(groups), 4)
for i in range(0, len(groups)):
self.assertIsInstance(inst_list.objects[i],
instance_group.InstanceGroup)
self.assertEqual(inst_list.objects[i].uuid, groups[i]['uuid'])
def test_list_by_project_id(self):
self._populate_instances()
project_ids = ['p1', 'p2']
for id in project_ids:
il = instance_group.InstanceGroupList.get_by_project_id(
self.context, id)
groups = db.instance_group_get_all_by_project_id(self.context, id)
self.assertEqual(len(groups), len(il.objects))
self.assertEqual(len(groups), 2)
for i in range(0, len(groups)):
self.assertIsInstance(il.objects[i],
instance_group.InstanceGroup)
self.assertEqual(il.objects[i].uuid, groups[i]['uuid'])
self.assertEqual(il.objects[i].name, groups[i]['name'])
self.assertEqual(il.objects[i].project_id, id)
def test_get_by_name(self):
self._populate_instances()
ctxt = context.RequestContext('fake_user', 'p1')
ig = instance_group.InstanceGroup.get_by_name(ctxt, 'f1')
self.assertEqual('f1', ig.name)
def test_get_by_hint(self):
instances = self._populate_instances()
for instance in instances:
ctxt = context.RequestContext('fake_user', instance[2])
ig = instance_group.InstanceGroup.get_by_hint(ctxt, instance[1])
self.assertEqual(instance[1], ig.name)
ig = instance_group.InstanceGroup.get_by_hint(ctxt, instance[0])
self.assertEqual(instance[0], ig.uuid)
def test_add_members(self):
instance_ids = ['fakeid1', 'fakeid2']
values = self._get_default_values()
group = self._create_instance_group(self.context, values)
members = instance_group.InstanceGroup.add_members(self.context,
group.uuid, instance_ids)
group = instance_group.InstanceGroup.get_by_uuid(self.context,
group.uuid)
for instance in instance_ids:
self.assertIn(instance, members)
self.assertIn(instance, group.members)
def test_get_hosts(self):
instance1 = tests_utils.get_test_instance(self.context,
flavor=flavors.get_default_flavor(), obj=True)
instance1.host = 'hostA'
instance1.save()
instance2 = tests_utils.get_test_instance(self.context,
flavor=flavors.get_default_flavor(), obj=True)
instance2.host = 'hostB'
instance2.save()
instance3 = tests_utils.get_test_instance(self.context,
flavor=flavors.get_default_flavor(), obj=True)
instance3.host = 'hostB'
instance3.save()
instance_ids = [instance1.uuid, instance2.uuid, instance3.uuid]
values = self._get_default_values()
group = self._create_instance_group(self.context, values)
instance_group.InstanceGroup.add_members(self.context, group.uuid,
instance_ids)
group = instance_group.InstanceGroup.get_by_uuid(self.context,
group.uuid)
hosts = group.get_hosts(self.context)
self.assertEqual(2, len(hosts))
self.assertIn('hostA', hosts)
self.assertIn('hostB', hosts)
hosts = group.get_hosts(self.context, exclude=[instance1.uuid])
self.assertEqual(1, len(hosts))
self.assertIn('hostB', hosts)
def test_get_hosts_with_some_none(self):
instance1 = tests_utils.get_test_instance(self.context,
flavor=flavors.get_default_flavor(), obj=True)
instance1.host = None
instance1.save()
instance2 = tests_utils.get_test_instance(self.context,
flavor=flavors.get_default_flavor(), obj=True)
instance2.host = 'hostB'
instance2.save()
instance_ids = [instance1.uuid, instance2.uuid]
values = self._get_default_values()
group = self._create_instance_group(self.context, values)
instance_group.InstanceGroup.add_members(self.context, group.uuid,
instance_ids)
group = instance_group.InstanceGroup.get_by_uuid(self.context,
group.uuid)
hosts = group.get_hosts(self.context)
self.assertEqual(1, len(hosts))
self.assertIn('hostB', hosts)
def test_obj_make_compatible(self):
group = instance_group.InstanceGroup(uuid='fake-uuid',
name='fake-name')
group.create(self.context)
group_primitive = group.obj_to_primitive()
group.obj_make_compatible(group_primitive, '1.6')
self.assertEqual({}, group_primitive['metadetails'])
def test_count_members_by_user(self):
instance1 = tests_utils.get_test_instance(self.context,
flavor=flavors.get_default_flavor(), obj=True)
instance1.user_id = 'user1'
instance1.save()
instance2 = tests_utils.get_test_instance(self.context,
flavor=flavors.get_default_flavor(), obj=True)
instance2.user_id = 'user2'
instance2.save()
instance3 = tests_utils.get_test_instance(self.context,
flavor=flavors.get_default_flavor(), obj=True)
instance3.user_id = 'user2'
instance3.save()
instance_ids = [instance1.uuid, instance2.uuid, instance3.uuid]
values = self._get_default_values()
group = self._create_instance_group(self.context, values)
instance_group.InstanceGroup.add_members(self.context, group.uuid,
instance_ids)
group = instance_group.InstanceGroup.get_by_uuid(self.context,
group.uuid)
count_user1 = group.count_members_by_user(self.context, 'user1')
count_user2 = group.count_members_by_user(self.context, 'user2')
count_user3 = group.count_members_by_user(self.context, 'user3')
self.assertEqual(1, count_user1)
self.assertEqual(2, count_user2)
self.assertEqual(0, count_user3)
class TestInstanceGroupObject(test_objects._LocalTest,
_TestInstanceGroupObjects):
pass
class TestRemoteInstanceGroupObject(test_objects._RemoteTest,
_TestInstanceGroupObjects):
pass