cinder/cinder/tests/unit/volume/drivers/dell_emc/vnx/test_utils.py
Sean McGinnis c47ac17c42
Ensure VNX unit tests don't sleep
Some VNX unit tests were taking over 30 seconds to complete due to some
sleeps not being adjusted for test runs. To make sure all tests are
protected from hitting these through unexpected paths, and to ensure
consistency, this adds a base test class that the others inherit from.
This makes sure the sleep values are always adjusted and provides a
common place for things to be set up for all tests.

Change-Id: I7721dd1078f260f820d5883022040d2eef9949bf
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>
2018-09-06 11:53:23 -05:00

252 lines
10 KiB
Python

# Copyright (c) 2016 EMC Corporation, Inc.
# 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.
import mock
from cinder import exception
from cinder.tests.unit.volume.drivers.dell_emc.vnx import fake_exception \
as storops_ex
from cinder.tests.unit.volume.drivers.dell_emc.vnx import fake_storops \
as storops
from cinder.tests.unit.volume.drivers.dell_emc.vnx import res_mock
from cinder.tests.unit.volume.drivers.dell_emc.vnx import test_base
from cinder.tests.unit.volume.drivers.dell_emc.vnx import utils as ut_utils
from cinder.volume.drivers.dell_emc.vnx import common
from cinder.volume.drivers.dell_emc.vnx import utils as vnx_utils
from cinder.volume import volume_types
class FakeDriver(object):
@vnx_utils.require_consistent_group_snapshot_enabled
def fake_group_method(self, context, group_or_snap):
return True
class TestUtils(test_base.TestCase):
def test_wait_until(self):
mock_testmethod = mock.Mock(return_value=True)
vnx_utils.wait_until(mock_testmethod, interval=0)
mock_testmethod.assert_has_calls([mock.call()])
def test_wait_until_with_exception(self):
mock_testmethod = mock.Mock(
side_effect=storops_ex.VNXAttachSnapError('Unknown error'))
mock_testmethod.__name__ = 'test_method'
self.assertRaises(storops_ex.VNXAttachSnapError,
vnx_utils.wait_until,
mock_testmethod,
timeout=1,
interval=0,
reraise_arbiter=(
lambda ex: not isinstance(
ex, storops_ex.VNXCreateLunError)))
mock_testmethod.assert_has_calls([mock.call()])
def test_wait_until_with_params(self):
mock_testmethod = mock.Mock(return_value=True)
vnx_utils.wait_until(mock_testmethod,
param1=1,
param2='test')
mock_testmethod.assert_has_calls(
[mock.call(param1=1, param2='test')])
mock_testmethod.assert_has_calls([mock.call(param1=1, param2='test')])
@res_mock.mock_driver_input
def test_retype_need_migration_when_host_changed(self, driver_in):
volume = driver_in['volume']
another_host = driver_in['host']
re = vnx_utils.retype_need_migration(
volume, None, None, another_host)
self.assertTrue(re)
@res_mock.mock_driver_input
def test_retype_need_migration_for_smp_volume(self, driver_in):
volume = driver_in['volume']
host = driver_in['host']
re = vnx_utils.retype_need_migration(
volume, None, None, host)
self.assertTrue(re)
@res_mock.mock_driver_input
def test_retype_need_migration_when_provision_changed(
self, driver_in):
volume = driver_in['volume']
host = driver_in['host']
old_spec = common.ExtraSpecs({'provisioning:type': 'thin'})
new_spec = common.ExtraSpecs({'provisioning:type': 'deduplicated'})
re = vnx_utils.retype_need_migration(
volume, old_spec.provision, new_spec.provision, host)
self.assertTrue(re)
@res_mock.mock_driver_input
def test_retype_not_need_migration_when_provision_changed(
self, driver_in):
volume = driver_in['volume']
host = driver_in['host']
old_spec = common.ExtraSpecs({'provisioning:type': 'thick'})
new_spec = common.ExtraSpecs({'provisioning:type': 'compressed'})
re = vnx_utils.retype_need_migration(
volume, old_spec.provision, new_spec.provision, host)
self.assertFalse(re)
@res_mock.mock_driver_input
def test_retype_not_need_migration(self, driver_in):
volume = driver_in['volume']
host = driver_in['host']
old_spec = common.ExtraSpecs({'storagetype:tiering': 'auto'})
new_spec = common.ExtraSpecs(
{'storagetype:tiering': 'starthighthenauto'})
re = vnx_utils.retype_need_migration(
volume, old_spec.provision, new_spec.provision, host)
self.assertFalse(re)
def test_retype_need_change_tier(self):
re = vnx_utils.retype_need_change_tier(
storops.VNXTieringEnum.AUTO, storops.VNXTieringEnum.HIGH_AUTO)
self.assertTrue(re)
def test_retype_need_turn_on_compression(self):
re = vnx_utils.retype_need_turn_on_compression(
storops.VNXProvisionEnum.THIN,
storops.VNXProvisionEnum.COMPRESSED)
self.assertTrue(re)
re = vnx_utils.retype_need_turn_on_compression(
storops.VNXProvisionEnum.THICK,
storops.VNXProvisionEnum.COMPRESSED)
self.assertTrue(re)
def test_retype_not_need_turn_on_compression(self):
re = vnx_utils.retype_need_turn_on_compression(
storops.VNXProvisionEnum.DEDUPED,
storops.VNXProvisionEnum.COMPRESSED)
self.assertFalse(re)
re = vnx_utils.retype_need_turn_on_compression(
storops.VNXProvisionEnum.DEDUPED,
storops.VNXProvisionEnum.COMPRESSED)
self.assertFalse(re)
@res_mock.mock_driver_input
def test_get_base_lun_name(self, mocked):
volume = mocked['volume']
self.assertEqual(
'test',
vnx_utils.get_base_lun_name(volume))
def test_convert_to_tgt_list_and_itor_tgt_map(self):
zone_mapping = {
'san_1': {'initiator_port_wwn_list':
['wwn1_1'],
'target_port_wwn_list':
['wwnt_1', 'wwnt_2']},
'san_2': {'initiator_port_wwn_list':
['wwn2_1', 'wwn2_2'],
'target_port_wwn_list':
['wwnt_1', 'wwnt_3']},
}
tgt_wwns, itor_tgt_map = (
vnx_utils.convert_to_tgt_list_and_itor_tgt_map(zone_mapping))
self.assertEqual({'wwnt_1', 'wwnt_2', 'wwnt_3'}, set(tgt_wwns))
self.assertEqual({'wwn1_1': ['wwnt_1', 'wwnt_2'],
'wwn2_1': ['wwnt_1', 'wwnt_3'],
'wwn2_2': ['wwnt_1', 'wwnt_3']},
itor_tgt_map)
@ut_utils.patch_group_specs('<is> True')
@res_mock.mock_driver_input
def test_require_consistent_group_snapshot_enabled(self, input):
driver = FakeDriver()
is_called = driver.fake_group_method('context', input['group'])
self.assertTrue(is_called)
@res_mock.mock_driver_input
def test_is_image_cache_volume_false(self, mocked):
volume = mocked['volume']
volume.display_name = 'volume-ca86b9a0-d0d5-4267-8cd5-c62274056cc0'
self.assertFalse(vnx_utils.is_image_cache_volume(volume))
volume.display_name = 'volume-ca86b9a0-d0d5-c62274056cc0'
self.assertFalse(vnx_utils.is_image_cache_volume(volume))
@res_mock.mock_driver_input
def test_is_image_cache_volume_true(self, mocked):
volume = mocked['volume']
volume.display_name = 'image-ca86b9a0-d0d5-4267-8cd5-c62274056cc0'
self.assertTrue(vnx_utils.is_image_cache_volume(volume))
@res_mock.mock_driver_input
def test_calc_migrate_and_provision_image_cache(self, mocked):
volume = mocked['volume']
volume.display_name = 'image-ca86b9a0-d0d5-4267-8cd5-c62274056cc0'
self.assertTrue(vnx_utils.is_image_cache_volume(volume))
async_migrate, provision = vnx_utils.calc_migrate_and_provision(volume)
self.assertFalse(async_migrate)
self.assertEqual(provision.name, 'THIN')
@res_mock.mock_driver_input
def test_calc_migrate_and_provision(self, mocked):
volume = mocked['volume']
volume.display_name = 'volume-ca86b9a0-d0d5-4267-8cd5-c62274056cc0'
async_migrate, provision = vnx_utils.calc_migrate_and_provision(volume)
self.assertEqual(vnx_utils.is_async_migrate_enabled(volume),
async_migrate)
self.assertEqual(provision.name, 'THICK')
@ut_utils.patch_extra_specs({})
@res_mock.mock_driver_input
def test_get_backend_qos_specs(self, cinder_input):
volume = cinder_input['volume']
with mock.patch.object(volume_types, 'get_volume_type_qos_specs',
return_value={'qos_specs': None}):
r = vnx_utils.get_backend_qos_specs(volume)
self.assertIsNone(r)
with mock.patch.object(volume_types, 'get_volume_type_qos_specs',
return_value={
'qos_specs': {'consumer': 'frontend'}}):
r = vnx_utils.get_backend_qos_specs(volume)
self.assertIsNone(r)
with mock.patch.object(volume_types, 'get_volume_type_qos_specs',
return_value={
'qos_specs': {'id': 'test', 'consumer': 'back-end', 'specs': {
common.QOS_MAX_BWS: 100, common.QOS_MAX_IOPS: 10}}}):
r = vnx_utils.get_backend_qos_specs(volume)
self.assertIsNotNone(r)
self.assertEqual(100, r[common.QOS_MAX_BWS])
self.assertEqual(10, r[common.QOS_MAX_IOPS])
@ut_utils.patch_group_specs({
'consistent_group_replication_enabled': '<is> True'})
@ut_utils.patch_extra_specs({
'replication_enabled': '<is> False'})
@res_mock.mock_driver_input
def test_check_type_matched_invalid(self, mocked):
volume = mocked['volume']
volume.group = mocked['group']
self.assertRaises(exception.InvalidInput,
vnx_utils.check_type_matched,
volume)
@ut_utils.patch_group_specs({
'consistent_group_replication_enabled': '<is> True'})
@res_mock.mock_driver_input
def test_check_rep_status_matched_disabled(self, mocked):
group = mocked['group']
self.assertRaises(exception.InvalidInput,
vnx_utils.check_rep_status_matched,
group)