105 lines
4.0 KiB
Python
105 lines
4.0 KiB
Python
# Copyright (c) 2020 Dell Inc. or its subsidiaries.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from unittest import mock
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from cinder import context
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from cinder import exception
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from cinder.tests.unit import fake_constants as fake
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from cinder.tests.unit import fake_snapshot
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from cinder.tests.unit import fake_volume
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from cinder.tests.unit.volume.drivers.dell_emc import vxflexos
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class TestRevertVolume(vxflexos.TestVxFlexOSDriver):
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"""Test cases for ``VxFlexOSDriver.revert_to_snapshot()``"""
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def setUp(self):
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"""Setup a test case environment.
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Creates a fake volume object and sets up the required API responses.
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"""
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super(TestRevertVolume, self).setUp()
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ctx = context.RequestContext('fake', 'fake', auth_token=True)
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host = 'host@backend#{}:{}'.format(
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self.PROT_DOMAIN_NAME,
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self.STORAGE_POOL_NAME)
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self.volume = fake_volume.fake_volume_obj(
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ctx, **{'provider_id': fake.PROVIDER_ID, 'host': host,
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'volume_type_id': fake.VOLUME_TYPE_ID,
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'size': 8})
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self.snapshot = fake_snapshot.fake_snapshot_obj(
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ctx, **{'volume_id': self.volume.id,
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'volume_size': self.volume.size}
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)
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self.HTTPS_MOCK_RESPONSES = {
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self.RESPONSE_MODE.Valid: {
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'instances/Volume::{}/action/overwriteVolumeContent'.format(
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self.volume.provider_id
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): {},
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},
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self.RESPONSE_MODE.Invalid: {
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'version': "2.6",
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},
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self.RESPONSE_MODE.BadStatus: {
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'instances/Volume::{}/action/overwriteVolumeContent'.format(
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self.volume.provider_id
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): self.BAD_STATUS_RESPONSE
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},
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}
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self.volume_is_replicated_mock = self.mock_object(
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self.volume, 'is_replicated',
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return_value=False
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)
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def test_revert_to_snapshot(self):
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self.driver.revert_to_snapshot(None, self.volume, self.snapshot)
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def test_revert_to_snapshot_badstatus_response(self):
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self.set_https_response_mode(self.RESPONSE_MODE.BadStatus)
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self.assertRaises(exception.VolumeBackendAPIException,
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self.driver.revert_to_snapshot,
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None, self.volume, self.snapshot)
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def test_revert_to_snapshot_use_generic(self):
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self.set_https_response_mode(self.RESPONSE_MODE.Invalid)
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self.assertRaises(NotImplementedError,
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self.driver.revert_to_snapshot,
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None, self.volume, self.snapshot)
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def test_revert_to_snapshot_replicated_volume(self):
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self.volume_is_replicated_mock.return_value = True
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self.assertRaisesRegexp(
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exception.InvalidVolume,
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'Reverting replicated volume is not allowed.',
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self.driver.revert_to_snapshot,
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None, self.volume, self.snapshot
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)
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def test_revert_to_snapshot_size_not_equal(self):
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patched_volume = mock.MagicMock()
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patched_volume.id = self.volume.id
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patched_volume.size = 16
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patched_volume.is_replicated.return_value = False
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self.assertRaisesRegexp(
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exception.InvalidVolume,
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('Volume %s size is not equal to snapshot %s size.' %
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(self.volume.id, self.snapshot.id)),
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self.driver.revert_to_snapshot,
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None, patched_volume, self.snapshot
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)
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