cinder/cinder/tests/unit/volume/test_volume_reimage.py

154 lines
7.2 KiB
Python

# 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.
"""Tests for Volume reimage Code."""
from unittest import mock
import ddt
from oslo_concurrency import processutils
from cinder import exception
from cinder.message import message_field
from cinder.tests.unit import fake_constants
from cinder.tests.unit.image import fake as fake_image
from cinder.tests.unit import utils as tests_utils
from cinder.tests.unit import volume as base
@ddt.ddt
class VolumeReimageTestCase(base.BaseVolumeTestCase):
def setUp(self):
super(VolumeReimageTestCase, self).setUp()
self.patch('cinder.volume.volume_utils.clear_volume', autospec=True)
fake_image.mock_image_service(self)
self.image_meta = fake_image.FakeImageService().show(
self.context, fake_constants.IMAGE_ID)
def test_volume_reimage(self):
volume = tests_utils.create_volume(self.context, status='downloading',
previous_status='available')
self.assertEqual(volume.status, 'downloading')
self.assertEqual(volume.previous_status, 'available')
self.volume.create_volume(self.context, volume)
with mock.patch.object(self.volume.driver, 'copy_image_to_volume'
) as mock_cp_img:
self.volume.reimage(self.context, volume, self.image_meta)
mock_cp_img.assert_called_once_with(self.context, volume,
fake_image.FakeImageService(),
self.image_meta['id'],
disable_sparse=True)
self.assertEqual(volume.status, 'available')
def test_volume_reimage_raise_exception(self):
volume = tests_utils.create_volume(self.context)
self.volume.create_volume(self.context, volume)
with mock.patch.object(self.volume.driver, 'copy_image_to_volume'
) as mock_cp_img:
mock_cp_img.side_effect = processutils.ProcessExecutionError
self.assertRaises(exception.ImageCopyFailure, self.volume.reimage,
self.context, volume, self.image_meta)
self.assertEqual(volume.previous_status, 'available')
self.assertEqual(volume.status, 'error')
mock_cp_img.side_effect = exception.ImageUnacceptable(
image_id=self.image_meta['id'], reason='')
self.assertRaises(exception.ImageUnacceptable, self.volume.reimage,
self.context, volume, self.image_meta)
mock_cp_img.side_effect = exception.ImageConversionNotAllowed(
image_id=self.image_meta['id'], reason='')
with mock.patch.object(
self.volume.message_api, 'create'
) as mock_msg_create:
self.assertRaises(
exception.ImageConversionNotAllowed, self.volume.reimage,
self.context, volume, self.image_meta)
mock_msg_create.assert_called_with(
self.context,
message_field.Action.REIMAGE_VOLUME,
resource_uuid=volume.id,
detail=message_field.Detail.IMAGE_FORMAT_UNACCEPTABLE)
mock_cp_img.side_effect = exception.ImageTooBig(
image_id=self.image_meta['id'], reason='')
self.assertRaises(exception.ImageTooBig, self.volume.reimage,
self.context, volume, self.image_meta)
mock_cp_img.side_effect = Exception
self.assertRaises(exception.ImageCopyFailure, self.volume.reimage,
self.context, volume, self.image_meta)
mock_cp_img.side_effect = exception.ImageCopyFailure(reason='')
self.assertRaises(exception.ImageCopyFailure, self.volume.reimage,
self.context, volume, self.image_meta)
@mock.patch('cinder.volume.volume_utils.check_image_metadata')
@mock.patch('cinder.volume.rpcapi.VolumeAPI.reimage')
@ddt.data('available', 'error')
def test_volume_reimage_api(self, status, mock_reimage, mock_check):
volume = tests_utils.create_volume(self.context)
volume.status = status
volume.save()
self.assertEqual(volume.status, status)
# The available or error volume can be reimaged directly
self.volume_api.reimage(self.context, volume, self.image_meta['id'])
mock_check.assert_called_once_with(self.image_meta, volume.size)
mock_reimage.assert_called_once_with(self.context, volume,
self.image_meta)
@mock.patch('cinder.volume.volume_utils.check_image_metadata')
@mock.patch('cinder.volume.rpcapi.VolumeAPI.reimage')
def test_volume_reimage_api_with_reimage_reserved(self, mock_reimage,
mock_check):
volume = tests_utils.create_volume(self.context)
# The reserved volume can not be reimaged directly, and only can
# be reimaged with reimage_reserved flag
volume.status = 'reserved'
volume.save()
self.assertEqual(volume.status, 'reserved')
self.volume_api.reimage(self.context, volume, self.image_meta['id'],
reimage_reserved=True)
mock_check.assert_called_once_with(self.image_meta, volume.size)
mock_reimage.assert_called_once_with(self.context, volume,
self.image_meta)
def test_volume_reimage_api_with_invaild_status(self):
volume = tests_utils.create_volume(self.context)
# The reserved volume can not be reimaged directly, and only can
# be reimaged with reimage_reserved flag
volume.status = 'reserved'
volume.save()
self.assertEqual(volume.status, 'reserved')
ex = self.assertRaises(exception.InvalidVolume,
self.volume_api.reimage,
self.context, volume,
self.image_meta['id'],
reimage_reserved=False)
self.assertIn("status must be available or error",
str(ex))
# The other status volume can not be reimage
volume.status = 'in-use'
volume.save()
self.assertEqual(volume.status, 'in-use')
ex = self.assertRaises(exception.InvalidVolume,
self.volume_api.reimage,
self.context, volume, self.image_meta['id'],
reimage_reserved=True)
self.assertIn("status must be "
"available or error or reserved",
str(ex))