OpenStack Image Management (Glance)
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# Copyright 2015 OpenStack Foundation
# 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.
from unittest import mock
import futurist
import glance_store
from oslo_config import cfg
from taskflow import engines
import glance.async_
from glance.async_ import taskflow_executor
from glance.common.scripts.image_import import main as image_import
from glance import domain
import glance.tests.utils as test_utils
CONF = cfg.CONF
TENANT1 = '6838eb7b-6ded-434a-882c-b344c77fe8df'
class TestTaskExecutor(test_utils.BaseTestCase):
def setUp(self):
# NOTE(danms): Makes sure that we have a model set to something
glance.async_._THREADPOOL_MODEL = None
glance.async_.set_threadpool_model('eventlet')
super(TestTaskExecutor, self).setUp()
glance_store.register_opts(CONF)
self.config(default_store='file',
stores=['file', 'http'],
filesystem_store_datadir=self.test_dir,
group="glance_store")
glance_store.create_stores(CONF)
self.config(engine_mode='serial',
group='taskflow_executor')
self.context = mock.Mock()
self.task_repo = mock.Mock()
self.image_repo = mock.Mock()
self.image_factory = mock.Mock()
task_input = {
"import_from": "http://cloud.foo/image.qcow2",
"import_from_format": "qcow2",
"image_properties": {'disk_format': 'qcow2',
'container_format': 'bare'}
}
task_ttl = CONF.task.task_time_to_live
self.task_type = 'import'
image_id = 'fake-image-id'
request_id = 'fake_request_id'
user_id = 'fake_user'
self.task_factory = domain.TaskFactory()
self.task = self.task_factory.new_task(self.task_type, TENANT1,
image_id, user_id,
request_id,
task_time_to_live=task_ttl,
task_input=task_input)
self.executor = taskflow_executor.TaskExecutor(
self.context,
self.task_repo,
self.image_repo,
self.image_factory)
def test_fetch_an_executor_parallel(self):
self.config(engine_mode='parallel', group='taskflow_executor')
pool = self.executor._fetch_an_executor()
self.assertIsInstance(pool, futurist.GreenThreadPoolExecutor)
def test_fetch_an_executor_serial(self):
pool = self.executor._fetch_an_executor()
self.assertIsNone(pool)
def test_begin_processing(self):
with mock.patch.object(engines, 'load') as load_mock:
engine = mock.Mock()
load_mock.return_value = engine
self.task_repo.get.return_value = self.task
self.executor.begin_processing(self.task.task_id)
# assert the call
self.assertEqual(1, load_mock.call_count)
self.assertEqual(1, engine.run.call_count)
def test_task_fail(self):
with mock.patch.object(engines, 'load') as load_mock:
engine = mock.Mock()
load_mock.return_value = engine
engine.run.side_effect = RuntimeError
self.task_repo.get.return_value = self.task
self.assertRaises(RuntimeError, self.executor.begin_processing,
self.task.task_id)
self.assertEqual('failure', self.task.status)
self.task_repo.save.assert_called_with(self.task)
def test_task_fail_upload(self):
with mock.patch.object(image_import, 'set_image_data') as import_mock:
import_mock.side_effect = IOError
self.task_repo.get.return_value = self.task
self.executor.begin_processing(self.task.task_id)
self.assertEqual('failure', self.task.status)
self.task_repo.save.assert_called_with(self.task)
self.assertEqual(1, import_mock.call_count)
@mock.patch('stevedore.driver.DriverManager')
def test_get_flow_with_admin_repo(self, mock_driver):
admin_repo = mock.MagicMock()
executor = taskflow_executor.TaskExecutor(self.context,
self.task_repo,
self.image_repo,
self.image_factory,
admin_repo=admin_repo)
self.assertEqual(mock_driver.return_value.driver,
executor._get_flow(self.task))
mock_driver.assert_called_once_with(
'glance.flows', self.task.type,
invoke_on_load=True,
invoke_kwds={'task_id': self.task.task_id,
'task_type': self.task.type,
'context': self.context,
'task_repo': self.task_repo,
'image_repo': self.image_repo,
'image_factory': self.image_factory,
'backend': None,
'admin_repo': admin_repo,
'uri': 'http://cloud.foo/image.qcow2'})
@mock.patch('stevedore.driver.DriverManager')
@mock.patch.object(taskflow_executor, 'LOG')
def test_get_flow_fails(self, mock_log, mock_driver):
mock_driver.side_effect = IndexError('fail')
executor = taskflow_executor.TaskExecutor(self.context,
self.task_repo,
self.image_repo,
self.image_factory)
self.assertRaises(IndexError, executor._get_flow, self.task)
mock_log.exception.assert_called_once_with(
'Task initialization failed: %s', 'fail')