155 lines
6.8 KiB
Python
155 lines
6.8 KiB
Python
# Copyright (c) 2016 EMC Corporation.
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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.mock import patch
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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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from cinder.tests.unit.volume.drivers.dell_emc.vxflexos import mocks
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from cinder.volume import volume_types
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class TestManageExistingSnapshot(vxflexos.TestVxFlexOSDriver):
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"""Test cases for ``VxFlexOSDriver.manage_existing_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(TestManageExistingSnapshot, self).setUp()
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ctx = context.RequestContext('fake', 'fake', auth_token=True)
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self.volume = fake_volume.fake_volume_obj(
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ctx, **{'provider_id': fake.PROVIDER_ID})
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self.snapshot = fake_snapshot.fake_snapshot_obj(
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ctx, **{'provider_id': fake.PROVIDER2_ID})
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self.snapshot2 = fake_snapshot.fake_snapshot_obj(
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ctx, **{'provider_id': fake.PROVIDER3_ID})
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self.snapshot.volume = self.snapshot2.volume = self.volume
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self.snapshot['volume_type_id'] = fake.VOLUME_TYPE_ID
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self.snapshot2['volume_type_id'] = fake.VOLUME_TYPE_ID
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self.snapshot_attached = fake_snapshot.fake_snapshot_obj(
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ctx, **{'provider_id': fake.PROVIDER4_ID})
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self.HTTPS_MOCK_RESPONSES = {
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self.RESPONSE_MODE.Valid: {
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'instances/Volume::' + self.volume['provider_id']:
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mocks.MockHTTPSResponse({
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'id': fake.PROVIDER_ID,
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'sizeInKb': 8388608,
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'mappedSdcInfo': None,
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'ancestorVolumeId': None
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}, 200),
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'instances/Volume::' + self.snapshot['provider_id']:
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mocks.MockHTTPSResponse({
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'id': fake.PROVIDER2_ID,
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'sizeInKb': 8000000,
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'mappedSdcInfo': None,
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'ancestorVolumeId': fake.PROVIDER_ID
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}, 200),
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'instances/Volume::' + self.snapshot2['provider_id']:
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mocks.MockHTTPSResponse({
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'id': fake.PROVIDER3_ID,
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'sizeInKb': 8388608,
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'mappedSdcInfo': None,
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'ancestorVolumeId': fake.PROVIDER2_ID
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}, 200)
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},
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self.RESPONSE_MODE.BadStatus: {
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'instances/Volume::' + self.snapshot['provider_id']:
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mocks.MockHTTPSResponse({
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'errorCode': 401,
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'message': 'BadStatus Volume Test',
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}, 401),
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'instances/Volume::' + self.snapshot2['provider_id']:
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mocks.MockHTTPSResponse({
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'id': fake.PROVIDER3_ID,
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'sizeInKb': 8388608,
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'ancestorVolumeId': fake.PROVIDER2_ID
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}, 200),
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'instances/Volume::' + self.snapshot_attached['provider_id']:
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mocks.MockHTTPSResponse({
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'id': fake.PROVIDER4_ID,
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'sizeInKb': 8388608,
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'mappedSdcInfo': 'Mapped',
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'ancestorVolumeId': fake.PROVIDER_ID
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}, 200)
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}
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}
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def test_no_source_id(self):
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existing_ref = {'source-name': 'scaleioSnapName'}
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self.assertRaises(exception.ManageExistingInvalidReference,
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self.driver.manage_existing_snapshot, self.snapshot,
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existing_ref)
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@patch.object(
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volume_types,
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'get_volume_type',
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return_value={'extra_specs': {'volume_backend_name': 'ScaleIO'}})
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def test_snapshot_not_found(self, _mock_volume_type):
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existing_ref = {'source-id': fake.PROVIDER2_ID}
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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.manage_existing_snapshot, self.snapshot,
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existing_ref)
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@patch.object(
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volume_types,
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'get_volume_type',
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return_value={'extra_specs': {'volume_backend_name': 'ScaleIO'}})
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def test_snapshot_attached(self, _mock_volume_type):
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self.snapshot_attached['volume_type_id'] = fake.VOLUME_TYPE_ID
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existing_ref = {'source-id': fake.PROVIDER4_ID}
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self.set_https_response_mode(self.RESPONSE_MODE.BadStatus)
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self.assertRaises(exception.ManageExistingInvalidReference,
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self.driver.manage_existing_snapshot,
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self.snapshot_attached, existing_ref)
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@patch.object(
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volume_types,
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'get_volume_type',
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return_value={'extra_specs': {'volume_backend_name': 'ScaleIO'}})
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def test_different_ancestor(self, _mock_volume_type):
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existing_ref = {'source-id': fake.PROVIDER3_ID}
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self.set_https_response_mode(self.RESPONSE_MODE.Valid)
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self.assertRaises(exception.ManageExistingInvalidReference,
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self.driver.manage_existing_snapshot,
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self.snapshot2, existing_ref)
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@patch.object(
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volume_types,
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'get_volume_type',
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return_value={'extra_specs': {'volume_backend_name': 'ScaleIO'}})
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def test_manage_snapshot_get_size_calc(self, _mock_volume_type):
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existing_ref = {'source-id': fake.PROVIDER2_ID}
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self.set_https_response_mode(self.RESPONSE_MODE.Valid)
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result = self.driver.manage_existing_snapshot_get_size(
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self.snapshot, existing_ref)
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self.assertEqual(8, result)
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@patch.object(
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volume_types,
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'get_volume_type',
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return_value={'extra_specs': {'volume_backend_name': 'ScaleIO'}})
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def test_manage_existing_snapshot_valid(self, _mock_volume_type):
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existing_ref = {'source-id': fake.PROVIDER2_ID}
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result = self.driver.manage_existing_snapshot(
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self.snapshot, existing_ref)
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self.assertEqual(fake.PROVIDER2_ID, result['provider_id'])
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