975 lines
43 KiB
Python
975 lines
43 KiB
Python
# Copyright (c) 2014 Pure Storage, Inc.
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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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import sys
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import mock
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from oslo_concurrency import processutils
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from oslo_utils import units
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from cinder import exception
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from cinder import test
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def fake_retry(exceptions, interval=1, retries=3, backoff_rate=2):
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def _decorator(f):
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return f
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return _decorator
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mock.patch('cinder.utils.retry', fake_retry).start()
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sys.modules['purestorage'] = mock.Mock()
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from cinder.volume.drivers import pure
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DRIVER_PATH = "cinder.volume.drivers.pure"
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DRIVER_OBJ = DRIVER_PATH + ".PureISCSIDriver"
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ARRAY_OBJ = DRIVER_PATH + ".FlashArray"
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TARGET = "pure-target"
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API_TOKEN = "12345678-abcd-1234-abcd-1234567890ab"
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VOLUME_BACKEND_NAME = "Pure_iSCSI"
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PORT_NAMES = ["ct0.eth2", "ct0.eth3", "ct1.eth2", "ct1.eth3"]
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ISCSI_IPS = ["10.0.0." + str(i + 1) for i in range(len(PORT_NAMES))]
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HOSTNAME = "computenode1"
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PURE_HOST_NAME = pure._generate_purity_host_name(HOSTNAME)
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PURE_HOST = {"name": PURE_HOST_NAME,
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"hgroup": None,
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"iqn": [],
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"wwn": [],
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}
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REST_VERSION = "1.2"
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VOLUME_ID = "abcdabcd-1234-abcd-1234-abcdeffedcba"
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VOLUME = {"name": "volume-" + VOLUME_ID,
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"id": VOLUME_ID,
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"display_name": "fake_volume",
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"size": 2,
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"host": "irrelevant",
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"volume_type": None,
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"volume_type_id": None,
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"consistencygroup_id": None
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}
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VOLUME_WITH_CGROUP = VOLUME.copy()
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VOLUME_WITH_CGROUP['consistencygroup_id'] = \
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"4a2f7e3a-312a-40c5-96a8-536b8a0fe074"
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SRC_VOL_ID = "dc7a294d-5964-4379-a15f-ce5554734efc"
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SRC_VOL = {"name": "volume-" + SRC_VOL_ID,
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"id": SRC_VOL_ID,
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"display_name": 'fake_src',
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"size": 2,
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"host": "irrelevant",
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"volume_type": None,
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"volume_type_id": None,
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"consistencygroup_id": None
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}
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SNAPSHOT_ID = "04fe2f9a-d0c4-4564-a30d-693cc3657b47"
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SNAPSHOT = {"name": "snapshot-" + SNAPSHOT_ID,
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"id": SNAPSHOT_ID,
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"volume_id": SRC_VOL_ID,
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"volume_name": "volume-" + SRC_VOL_ID,
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"volume_size": 2,
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"display_name": "fake_snapshot",
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"cgsnapshot_id": None
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}
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SNAPSHOT_WITH_CGROUP = SNAPSHOT.copy()
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SNAPSHOT_WITH_CGROUP['cgsnapshot_id'] = \
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"4a2f7e3a-312a-40c5-96a8-536b8a0fe075"
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INITIATOR_IQN = "iqn.1993-08.org.debian:01:222"
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CONNECTOR = {"initiator": INITIATOR_IQN, "host": HOSTNAME}
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TARGET_IQN = "iqn.2010-06.com.purestorage:flasharray.12345abc"
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TARGET_PORT = "3260"
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ISCSI_PORTS = [{"name": name,
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"iqn": TARGET_IQN,
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"portal": ip + ":" + TARGET_PORT,
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"wwn": None,
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} for name, ip in zip(PORT_NAMES, ISCSI_IPS)]
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NON_ISCSI_PORT = {"name": "ct0.fc1",
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"iqn": None,
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"portal": None,
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"wwn": "5001500150015081",
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}
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PORTS_WITH = ISCSI_PORTS + [NON_ISCSI_PORT]
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PORTS_WITHOUT = [NON_ISCSI_PORT]
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VOLUME_CONNECTIONS = [{"host": "h1", "name": VOLUME["name"] + "-cinder"},
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{"host": "h2", "name": VOLUME["name"] + "-cinder"},
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]
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TOTAL_CAPACITY = 50.0
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USED_SPACE = 32.1
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PROVISIONED_CAPACITY = 70.0
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DEFAULT_OVER_SUBSCRIPTION = 20
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SPACE_INFO = {"capacity": TOTAL_CAPACITY * units.Gi,
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"total": USED_SPACE * units.Gi
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}
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SPACE_INFO_EMPTY = {"capacity": TOTAL_CAPACITY * units.Gi,
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"total": 0
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}
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class FakePureStorageHTTPError(Exception):
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def __init__(self, target=None, rest_version=None, code=None,
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headers=None, text=None):
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self.target = target
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self.rest_version = rest_version
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self.code = code
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self.headers = headers
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self.text = text
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class PureISCSIDriverTestCase(test.TestCase):
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def setUp(self):
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super(PureISCSIDriverTestCase, self).setUp()
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self.config = mock.Mock()
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self.config.san_ip = TARGET
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self.config.pure_api_token = API_TOKEN
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self.config.volume_backend_name = VOLUME_BACKEND_NAME
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self.driver = pure.PureISCSIDriver(configuration=self.config)
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self.array = mock.Mock()
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self.driver._array = self.array
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self.purestorage_module = pure.purestorage
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self.purestorage_module.PureHTTPError = FakePureStorageHTTPError
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@mock.patch(DRIVER_OBJ + "._choose_target_iscsi_port")
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def test_do_setup(self, mock_choose_target_iscsi_port):
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mock_choose_target_iscsi_port.return_value = ISCSI_PORTS[0]
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self.purestorage_module.FlashArray.return_value = self.array
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self.array.get_rest_version.return_value = \
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self.driver.SUPPORTED_REST_API_VERSIONS[0]
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self.driver.do_setup(None)
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self.purestorage_module.FlashArray.assert_called_with(
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TARGET,
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api_token=API_TOKEN
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)
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self.assertEqual(self.array, self.driver._array)
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self.assertEqual(
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self.driver.SUPPORTED_REST_API_VERSIONS,
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self.purestorage_module.FlashArray.supported_rest_versions
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)
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mock_choose_target_iscsi_port.assert_called_with()
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self.assertEqual(ISCSI_PORTS[0], self.driver._iscsi_port)
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self.assert_error_propagates(
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[
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self.purestorage_module.FlashArray,
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mock_choose_target_iscsi_port
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],
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self.driver.do_setup, None
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)
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def assert_error_propagates(self, mocks, func, *args, **kwargs):
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"""Assert that errors from mocks propagate to func.
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Fail if exceptions raised by mocks are not seen when calling
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func(*args, **kwargs). Ensure that we are really seeing exceptions
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from the mocks by failing if just running func(*args, **kargs) raises
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an exception itself.
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"""
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func(*args, **kwargs)
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for mock_func in mocks:
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mock_func.side_effect = exception.PureDriverException(
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reason="reason")
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self.assertRaises(exception.PureDriverException,
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func, *args, **kwargs)
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mock_func.side_effect = None
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def test_generate_purity_host_name(self):
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generate = pure._generate_purity_host_name
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result = generate("really-long-string-thats-a-bit-too-long")
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self.assertTrue(result.startswith("really-long-string-that-"))
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self.assertTrue(result.endswith("-cinder"))
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self.assertEqual(len(result), 63)
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self.assertTrue(pure.GENERATED_NAME.match(result))
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result = generate("!@#$%^-invalid&*")
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self.assertTrue(result.startswith("invalid---"))
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self.assertTrue(result.endswith("-cinder"))
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self.assertEqual(len(result), 49)
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self.assertTrue(pure.GENERATED_NAME.match(result))
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def test_create_volume(self):
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self.driver.create_volume(VOLUME)
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self.array.create_volume.assert_called_with(
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VOLUME["name"] + "-cinder", 2 * units.Gi)
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self.assert_error_propagates([self.array.create_volume],
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self.driver.create_volume, VOLUME)
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@mock.patch(DRIVER_OBJ + "._add_volume_to_consistency_group",
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autospec=True)
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def test_create_volume_with_cgroup(self, mock_add_to_cgroup):
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vol_name = VOLUME_WITH_CGROUP["name"] + "-cinder"
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self.driver.create_volume(VOLUME_WITH_CGROUP)
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mock_add_to_cgroup\
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.assert_called_with(self.driver,
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VOLUME_WITH_CGROUP['consistencygroup_id'],
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vol_name)
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def test_create_volume_from_snapshot(self):
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vol_name = VOLUME["name"] + "-cinder"
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snap_name = SNAPSHOT["volume_name"] + "-cinder." + SNAPSHOT["name"]
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# Branch where extend unneeded
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self.driver.create_volume_from_snapshot(VOLUME, SNAPSHOT)
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self.array.copy_volume.assert_called_with(snap_name, vol_name)
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self.assertFalse(self.array.extend_volume.called)
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self.assert_error_propagates(
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[self.array.copy_volume],
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self.driver.create_volume_from_snapshot, VOLUME, SNAPSHOT)
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self.assertFalse(self.array.extend_volume.called)
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# Branch where extend needed
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SNAPSHOT["volume_size"] = 1 # resize so smaller than VOLUME
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self.driver.create_volume_from_snapshot(VOLUME, SNAPSHOT)
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expected = [mock.call.copy_volume(snap_name, vol_name),
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mock.call.extend_volume(vol_name, 2 * units.Gi)]
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self.array.assert_has_calls(expected)
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self.assert_error_propagates(
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[self.array.copy_volume, self.array.extend_volume],
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self.driver.create_volume_from_snapshot, VOLUME, SNAPSHOT)
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SNAPSHOT["volume_size"] = 2 # reset size
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@mock.patch(DRIVER_OBJ + "._add_volume_to_consistency_group",
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autospec=True)
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@mock.patch(DRIVER_OBJ + "._extend_if_needed", autospec=True)
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@mock.patch(DRIVER_PATH + "._get_pgroup_vol_snap_name", autospec=True)
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def test_create_volume_from_cgsnapshot(self, mock_get_snap_name,
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mock_extend_if_needed,
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mock_add_to_cgroup):
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vol_name = VOLUME_WITH_CGROUP["name"] + "-cinder"
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snap_name = "consisgroup-4a2f7e3a-312a-40c5-96a8-536b8a0f" \
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"e074-cinder.4a2f7e3a-312a-40c5-96a8-536b8a0fe075."\
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+ vol_name
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mock_get_snap_name.return_value = snap_name
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self.driver.create_volume_from_snapshot(VOLUME_WITH_CGROUP,
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SNAPSHOT_WITH_CGROUP)
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self.array.copy_volume.assert_called_with(snap_name, vol_name)
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self.assertTrue(mock_get_snap_name.called)
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self.assertTrue(mock_extend_if_needed.called)
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self.driver.create_volume_from_snapshot(VOLUME_WITH_CGROUP,
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SNAPSHOT_WITH_CGROUP)
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mock_add_to_cgroup\
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.assert_called_with(self.driver,
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VOLUME_WITH_CGROUP['consistencygroup_id'],
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vol_name)
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def test_create_cloned_volume(self):
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vol_name = VOLUME["name"] + "-cinder"
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src_name = SRC_VOL["name"] + "-cinder"
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# Branch where extend unneeded
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self.driver.create_cloned_volume(VOLUME, SRC_VOL)
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self.array.copy_volume.assert_called_with(src_name, vol_name)
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self.assertFalse(self.array.extend_volume.called)
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self.assert_error_propagates(
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[self.array.copy_volume],
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self.driver.create_cloned_volume, VOLUME, SRC_VOL)
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self.assertFalse(self.array.extend_volume.called)
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# Branch where extend needed
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SRC_VOL["size"] = 1 # resize so smaller than VOLUME
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self.driver.create_cloned_volume(VOLUME, SRC_VOL)
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expected = [mock.call.copy_volume(src_name, vol_name),
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mock.call.extend_volume(vol_name, 2 * units.Gi)]
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self.array.assert_has_calls(expected)
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self.assert_error_propagates(
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[self.array.copy_volume, self.array.extend_volume],
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self.driver.create_cloned_volume, VOLUME, SRC_VOL)
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SRC_VOL["size"] = 2 # reset size
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@mock.patch(DRIVER_OBJ + "._add_volume_to_consistency_group",
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autospec=True)
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def test_create_cloned_volume_with_cgroup(self, mock_add_to_cgroup):
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vol_name = VOLUME_WITH_CGROUP["name"] + "-cinder"
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self.driver.create_cloned_volume(VOLUME_WITH_CGROUP, SRC_VOL)
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mock_add_to_cgroup\
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.assert_called_with(self.driver,
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VOLUME_WITH_CGROUP['consistencygroup_id'],
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vol_name)
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def test_delete_volume_already_deleted(self):
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self.array.list_volume_private_connections.side_effect = \
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self.purestorage_module.PureHTTPError(
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code=400,
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text="Volume does not exist"
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)
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self.driver.delete_volume(VOLUME)
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self.assertFalse(self.array.destroy_volume.called)
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# Testing case where array.destroy_volume returns an exception
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# because volume has already been deleted
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self.array.list_volume_private_connections.side_effect = None
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self.array.list_volume_private_connections.return_value = {}
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self.array.destroy_volume.side_effect = \
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self.purestorage_module.PureHTTPError(
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code=400,
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text="Volume does not exist"
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)
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self.driver.delete_volume(VOLUME)
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self.assertTrue(self.array.destroy_volume.called)
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def test_delete_volume(self):
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vol_name = VOLUME["name"] + "-cinder"
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self.array.list_volume_private_connections.return_value = {}
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self.driver.delete_volume(VOLUME)
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expected = [mock.call.destroy_volume(vol_name)]
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self.array.assert_has_calls(expected)
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self.array.destroy_volume.side_effect = \
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self.purestorage_module.PureHTTPError(code=400, text="reason")
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self.driver.delete_snapshot(SNAPSHOT)
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self.array.destroy_volume.side_effect = None
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self.assert_error_propagates([self.array.destroy_volume],
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self.driver.delete_volume, VOLUME)
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def test_delete_connected_volume(self):
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vol_name = VOLUME["name"] + "-cinder"
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host_name_a = "ha"
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host_name_b = "hb"
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self.array.list_volume_private_connections.return_value = [{
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"host": host_name_a,
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"lun": 7,
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"name": vol_name,
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"size": 3221225472
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}, {
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"host": host_name_b,
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"lun": 2,
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"name": vol_name,
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"size": 3221225472
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}]
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self.driver.delete_volume(VOLUME)
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expected = [mock.call.list_volume_private_connections(vol_name),
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mock.call.disconnect_host(host_name_a, vol_name),
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mock.call.disconnect_host(host_name_b, vol_name),
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mock.call.destroy_volume(vol_name)]
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self.array.assert_has_calls(expected)
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def test_create_snapshot(self):
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vol_name = SRC_VOL["name"] + "-cinder"
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self.driver.create_snapshot(SNAPSHOT)
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self.array.create_snapshot.assert_called_with(
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vol_name,
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suffix=SNAPSHOT["name"]
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)
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self.assert_error_propagates([self.array.create_snapshot],
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self.driver.create_snapshot, SNAPSHOT)
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def test_delete_snapshot(self):
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snap_name = SNAPSHOT["volume_name"] + "-cinder." + SNAPSHOT["name"]
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self.driver.delete_snapshot(SNAPSHOT)
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expected = [mock.call.destroy_volume(snap_name)]
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self.array.assert_has_calls(expected)
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self.array.destroy_volume.side_effect = \
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self.purestorage_module.PureHTTPError(code=400, text="reason")
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self.driver.delete_snapshot(SNAPSHOT)
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self.array.destroy_volume.side_effect = None
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self.assert_error_propagates([self.array.destroy_volume],
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self.driver.delete_snapshot, SNAPSHOT)
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@mock.patch(DRIVER_OBJ + "._connect")
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@mock.patch(DRIVER_OBJ + "._get_target_iscsi_port")
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def test_initialize_connection(self, mock_get_iscsi_port, mock_connection):
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mock_get_iscsi_port.return_value = ISCSI_PORTS[0]
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mock_connection.return_value = {"vol": VOLUME["name"] + "-cinder",
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"lun": 1,
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}
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result = {"driver_volume_type": "iscsi",
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"data": {"target_iqn": TARGET_IQN,
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"target_portal": ISCSI_IPS[0] + ":" + TARGET_PORT,
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"target_lun": 1,
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"target_discovered": True,
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"access_mode": "rw",
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},
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}
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real_result = self.driver.initialize_connection(VOLUME, CONNECTOR)
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self.assertDictMatch(result, real_result)
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mock_get_iscsi_port.assert_called_with()
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mock_connection.assert_called_with(VOLUME, CONNECTOR)
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self.assert_error_propagates([mock_get_iscsi_port, mock_connection],
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self.driver.initialize_connection,
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VOLUME, CONNECTOR)
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@mock.patch(DRIVER_OBJ + "._choose_target_iscsi_port")
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@mock.patch(DRIVER_OBJ + "._run_iscsiadm_bare")
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def test_get_target_iscsi_port(self, mock_iscsiadm, mock_choose_port):
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self.driver._iscsi_port = ISCSI_PORTS[1]
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self.assertEqual(self.driver._get_target_iscsi_port(), ISCSI_PORTS[1])
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mock_iscsiadm.assert_called_with(["-m", "discovery",
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"-t", "sendtargets",
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"-p", ISCSI_PORTS[1]["portal"]])
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self.assertFalse(mock_choose_port.called)
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mock_iscsiadm.side_effect = [processutils.ProcessExecutionError, None]
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mock_choose_port.return_value = ISCSI_PORTS[2]
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self.assertEqual(self.driver._get_target_iscsi_port(), ISCSI_PORTS[2])
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mock_choose_port.assert_called_with()
|
|
mock_iscsiadm.side_effect = processutils.ProcessExecutionError
|
|
self.assert_error_propagates([mock_choose_port],
|
|
self.driver._get_target_iscsi_port)
|
|
|
|
@mock.patch(DRIVER_OBJ + "._run_iscsiadm_bare")
|
|
def test_choose_target_iscsi_port(self, mock_iscsiadm):
|
|
self.array.list_ports.return_value = PORTS_WITHOUT
|
|
self.assertRaises(exception.PureDriverException,
|
|
self.driver._choose_target_iscsi_port)
|
|
self.array.list_ports.return_value = PORTS_WITH
|
|
self.assertEqual(ISCSI_PORTS[0],
|
|
self.driver._choose_target_iscsi_port())
|
|
self.assert_error_propagates([mock_iscsiadm, self.array.list_ports],
|
|
self.driver._choose_target_iscsi_port)
|
|
|
|
@mock.patch(DRIVER_OBJ + "._get_host", autospec=True)
|
|
@mock.patch(DRIVER_PATH + "._generate_purity_host_name", autospec=True)
|
|
def test_connect(self, mock_generate, mock_host):
|
|
vol_name = VOLUME["name"] + "-cinder"
|
|
result = {"vol": vol_name, "lun": 1}
|
|
# Branch where host already exists
|
|
mock_host.return_value = PURE_HOST
|
|
self.array.connect_host.return_value = {"vol": vol_name, "lun": 1}
|
|
real_result = self.driver._connect(VOLUME, CONNECTOR)
|
|
self.assertEqual(result, real_result)
|
|
mock_host.assert_called_with(self.driver, CONNECTOR)
|
|
self.assertFalse(mock_generate.called)
|
|
self.assertFalse(self.array.create_host.called)
|
|
self.array.connect_host.assert_called_with(PURE_HOST_NAME, vol_name)
|
|
# Branch where new host is created
|
|
mock_host.return_value = None
|
|
mock_generate.return_value = PURE_HOST_NAME
|
|
real_result = self.driver._connect(VOLUME, CONNECTOR)
|
|
mock_host.assert_called_with(self.driver, CONNECTOR)
|
|
mock_generate.assert_called_with(HOSTNAME)
|
|
self.array.create_host.assert_called_with(PURE_HOST_NAME,
|
|
iqnlist=[INITIATOR_IQN])
|
|
self.assertEqual(result, real_result)
|
|
# Branch where host is needed
|
|
mock_generate.reset_mock()
|
|
self.array.reset_mock()
|
|
self.assert_error_propagates(
|
|
[mock_host, mock_generate, self.array.connect_host,
|
|
self.array.create_host],
|
|
self.driver._connect, VOLUME, CONNECTOR)
|
|
|
|
@mock.patch(DRIVER_OBJ + "._get_host", autospec=True)
|
|
def test_connect_already_connected(self, mock_host):
|
|
mock_host.return_value = PURE_HOST
|
|
expected = {"host": PURE_HOST_NAME, "lun": 1}
|
|
self.array.list_volume_private_connections.return_value = \
|
|
[expected, {"host": "extra", "lun": 2}]
|
|
self.array.connect_host.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
code=400,
|
|
text="Connection already exists"
|
|
)
|
|
actual = self.driver._connect(VOLUME, CONNECTOR)
|
|
self.assertEqual(expected, actual)
|
|
self.assertTrue(self.array.connect_host.called)
|
|
self.assertTrue(self.array.list_volume_private_connections)
|
|
|
|
@mock.patch(DRIVER_OBJ + "._get_host", autospec=True)
|
|
def test_connect_already_connected_list_hosts_empty(self, mock_host):
|
|
mock_host.return_value = PURE_HOST
|
|
self.array.list_volume_private_connections.return_value = {}
|
|
self.array.connect_host.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
code=400,
|
|
text="Connection already exists"
|
|
)
|
|
self.assertRaises(exception.PureDriverException, self.driver._connect,
|
|
VOLUME, CONNECTOR)
|
|
self.assertTrue(self.array.connect_host.called)
|
|
self.assertTrue(self.array.list_volume_private_connections)
|
|
|
|
@mock.patch(DRIVER_OBJ + "._get_host", autospec=True)
|
|
def test_connect_already_connected_list_hosts_exception(self, mock_host):
|
|
mock_host.return_value = PURE_HOST
|
|
self.array.list_volume_private_connections.side_effect = \
|
|
self.purestorage_module.PureHTTPError(code=400, text="")
|
|
self.array.connect_host.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
code=400,
|
|
text="Connection already exists"
|
|
)
|
|
self.assertRaises(self.purestorage_module.PureHTTPError,
|
|
self.driver._connect, VOLUME, CONNECTOR)
|
|
self.assertTrue(self.array.connect_host.called)
|
|
self.assertTrue(self.array.list_volume_private_connections)
|
|
|
|
def test_get_host(self):
|
|
good_host = PURE_HOST.copy()
|
|
good_host.update(iqn=["another-wrong-iqn", INITIATOR_IQN])
|
|
bad_host = {"name": "bad-host", "iqn": ["wrong-iqn"]}
|
|
self.array.list_hosts.return_value = [bad_host]
|
|
real_result = self.driver._get_host(CONNECTOR)
|
|
self.assertIs(real_result, None)
|
|
self.array.list_hosts.return_value.append(good_host)
|
|
real_result = self.driver._get_host(CONNECTOR)
|
|
self.assertEqual(real_result, good_host)
|
|
self.assert_error_propagates([self.array.list_hosts],
|
|
self.driver._get_host, CONNECTOR)
|
|
|
|
@mock.patch(DRIVER_OBJ + "._get_host", autospec=True)
|
|
def test_terminate_connection(self, mock_host):
|
|
vol_name = VOLUME["name"] + "-cinder"
|
|
mock_host.return_value = {"name": "some-host"}
|
|
# Branch with manually created host
|
|
self.driver.terminate_connection(VOLUME, CONNECTOR)
|
|
self.array.disconnect_host.assert_called_with("some-host", vol_name)
|
|
self.assertFalse(self.array.list_host_connections.called)
|
|
self.assertFalse(self.array.delete_host.called)
|
|
# Branch with host added to host group
|
|
self.array.reset_mock()
|
|
self.array.list_host_connections.return_value = []
|
|
mock_host.return_value = PURE_HOST.copy()
|
|
mock_host.return_value.update(hgroup="some-group")
|
|
self.driver.terminate_connection(VOLUME, CONNECTOR)
|
|
self.array.disconnect_host.assert_called_with(PURE_HOST_NAME, vol_name)
|
|
self.assertTrue(self.array.list_host_connections.called)
|
|
self.assertTrue(self.array.delete_host.called)
|
|
# Branch with host still having connected volumes
|
|
self.array.reset_mock()
|
|
self.array.list_host_connections.return_value = [
|
|
{"lun": 2, "name": PURE_HOST_NAME, "vol": "some-vol"}]
|
|
mock_host.return_value = PURE_HOST
|
|
self.driver.terminate_connection(VOLUME, CONNECTOR)
|
|
self.array.disconnect_host.assert_called_with(PURE_HOST_NAME, vol_name)
|
|
self.array.list_host_connections.assert_called_with(PURE_HOST_NAME,
|
|
private=True)
|
|
self.assertFalse(self.array.delete_host.called)
|
|
# Branch where host gets deleted
|
|
self.array.reset_mock()
|
|
self.array.list_host_connections.return_value = []
|
|
self.driver.terminate_connection(VOLUME, CONNECTOR)
|
|
self.array.disconnect_host.assert_called_with(PURE_HOST_NAME, vol_name)
|
|
self.array.list_host_connections.assert_called_with(PURE_HOST_NAME,
|
|
private=True)
|
|
self.array.delete_host.assert_called_with(PURE_HOST_NAME)
|
|
# Branch where connection is missing and the host is still deleted
|
|
self.array.reset_mock()
|
|
self.array.disconnect_host.side_effect = \
|
|
self.purestorage_module.PureHTTPError(code=400, text="reason")
|
|
self.driver.terminate_connection(VOLUME, CONNECTOR)
|
|
self.array.disconnect_host.assert_called_with(PURE_HOST_NAME, vol_name)
|
|
self.array.list_host_connections.assert_called_with(PURE_HOST_NAME,
|
|
private=True)
|
|
self.array.delete_host.assert_called_with(PURE_HOST_NAME)
|
|
# Branch where an unexpected exception occurs
|
|
self.array.reset_mock()
|
|
self.array.disconnect_host.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
code=500,
|
|
text="Some other error"
|
|
)
|
|
self.assertRaises(self.purestorage_module.PureHTTPError,
|
|
self.driver.terminate_connection, VOLUME, CONNECTOR)
|
|
self.array.disconnect_host.assert_called_with(PURE_HOST_NAME, vol_name)
|
|
self.assertFalse(self.array.list_host_connections.called)
|
|
self.assertFalse(self.array.delete_host.called)
|
|
|
|
@mock.patch(DRIVER_OBJ + "._get_provisioned_space", autospec=True)
|
|
def test_get_volume_stats(self, mock_space):
|
|
mock_space.return_value = PROVISIONED_CAPACITY * units.Gi
|
|
self.assertEqual(self.driver.get_volume_stats(), {})
|
|
self.array.get.return_value = SPACE_INFO
|
|
result = {"volume_backend_name": VOLUME_BACKEND_NAME,
|
|
"vendor_name": "Pure Storage",
|
|
"driver_version": self.driver.VERSION,
|
|
"storage_protocol": "iSCSI",
|
|
"total_capacity_gb": TOTAL_CAPACITY,
|
|
"free_capacity_gb": TOTAL_CAPACITY - USED_SPACE,
|
|
"reserved_percentage": 0,
|
|
"consistencygroup_support": True,
|
|
"thin_provisioning_support": True,
|
|
"provisioned_capacity": PROVISIONED_CAPACITY,
|
|
"max_over_subscription_ratio": (PROVISIONED_CAPACITY /
|
|
USED_SPACE)
|
|
}
|
|
real_result = self.driver.get_volume_stats(refresh=True)
|
|
self.assertDictMatch(result, real_result)
|
|
self.assertDictMatch(result, self.driver._stats)
|
|
|
|
@mock.patch(DRIVER_OBJ + "._get_provisioned_space", autospec=True)
|
|
def test_get_volume_stats_empty_array(self, mock_space):
|
|
mock_space.return_value = PROVISIONED_CAPACITY * units.Gi
|
|
self.assertEqual(self.driver.get_volume_stats(), {})
|
|
self.array.get.return_value = SPACE_INFO_EMPTY
|
|
result = {"volume_backend_name": VOLUME_BACKEND_NAME,
|
|
"vendor_name": "Pure Storage",
|
|
"driver_version": self.driver.VERSION,
|
|
"storage_protocol": "iSCSI",
|
|
"total_capacity_gb": TOTAL_CAPACITY,
|
|
"free_capacity_gb": TOTAL_CAPACITY,
|
|
"reserved_percentage": 0,
|
|
"consistencygroup_support": True,
|
|
"thin_provisioning_support": True,
|
|
"provisioned_capacity": PROVISIONED_CAPACITY,
|
|
"max_over_subscription_ratio": DEFAULT_OVER_SUBSCRIPTION
|
|
}
|
|
real_result = self.driver.get_volume_stats(refresh=True)
|
|
self.assertDictMatch(result, real_result)
|
|
self.assertDictMatch(result, self.driver._stats)
|
|
|
|
@mock.patch(DRIVER_OBJ + "._get_provisioned_space", autospec=True)
|
|
def test_get_volume_stats_nothing_provisioned(self, mock_space):
|
|
mock_space.return_value = 0
|
|
self.assertEqual(self.driver.get_volume_stats(), {})
|
|
self.array.get.return_value = SPACE_INFO
|
|
result = {"volume_backend_name": VOLUME_BACKEND_NAME,
|
|
"vendor_name": "Pure Storage",
|
|
"driver_version": self.driver.VERSION,
|
|
"storage_protocol": "iSCSI",
|
|
"total_capacity_gb": TOTAL_CAPACITY,
|
|
"free_capacity_gb": TOTAL_CAPACITY - USED_SPACE,
|
|
"reserved_percentage": 0,
|
|
"consistencygroup_support": True,
|
|
"thin_provisioning_support": True,
|
|
"provisioned_capacity": 0,
|
|
"max_over_subscription_ratio": DEFAULT_OVER_SUBSCRIPTION
|
|
}
|
|
real_result = self.driver.get_volume_stats(refresh=True)
|
|
self.assertDictMatch(result, real_result)
|
|
self.assertDictMatch(result, self.driver._stats)
|
|
|
|
def test_extend_volume(self):
|
|
vol_name = VOLUME["name"] + "-cinder"
|
|
self.driver.extend_volume(VOLUME, 3)
|
|
self.array.extend_volume.assert_called_with(vol_name, 3 * units.Gi)
|
|
self.assert_error_propagates([self.array.extend_volume],
|
|
self.driver.extend_volume, VOLUME, 3)
|
|
|
|
def test_get_pgroup_name_from_id(self):
|
|
id = "4a2f7e3a-312a-40c5-96a8-536b8a0fe074"
|
|
expected_name = "consisgroup-%s-cinder" % id
|
|
actual_name = pure._get_pgroup_name_from_id(id)
|
|
self.assertEqual(expected_name, actual_name)
|
|
|
|
def test_get_pgroup_snap_suffix(self):
|
|
cgsnap = mock.Mock()
|
|
cgsnap.id = "4a2f7e3a-312a-40c5-96a8-536b8a0fe074"
|
|
expected_suffix = "cgsnapshot-%s-cinder" % cgsnap.id
|
|
actual_suffix = pure._get_pgroup_snap_suffix(cgsnap)
|
|
self.assertEqual(expected_suffix, actual_suffix)
|
|
|
|
def test_get_pgroup_snap_name(self):
|
|
cg_id = "4a2f7e3a-312a-40c5-96a8-536b8a0fe074"
|
|
cgsnap_id = "4a2f7e3a-312a-40c5-96a8-536b8a0fe075"
|
|
|
|
mock_cgsnap = mock.Mock()
|
|
mock_cgsnap.consistencygroup_id = cg_id
|
|
mock_cgsnap.id = cgsnap_id
|
|
expected_name = "consisgroup-%(cg)s-cinder.cgsnapshot-%(snap)s-cinder"\
|
|
% {"cg": cg_id, "snap": cgsnap_id}
|
|
|
|
actual_name = pure._get_pgroup_snap_name(mock_cgsnap)
|
|
|
|
self.assertEqual(expected_name, actual_name)
|
|
|
|
def test_get_pgroup_vol_snap_name(self):
|
|
cg_id = "4a2f7e3a-312a-40c5-96a8-536b8a0fe074"
|
|
cgsnap_id = "4a2f7e3a-312a-40c5-96a8-536b8a0fe075"
|
|
volume_name = "volume-4a2f7e3a-312a-40c5-96a8-536b8a0fe075"
|
|
|
|
mock_snap = mock.Mock()
|
|
mock_snap.cgsnapshot = mock.Mock()
|
|
mock_snap.cgsnapshot.consistencygroup_id = cg_id
|
|
mock_snap.cgsnapshot.id = cgsnap_id
|
|
mock_snap.volume_name = volume_name
|
|
|
|
expected_name = "consisgroup-%(cg)s-cinder.cgsnapshot-%(snap)s-cinder"\
|
|
".%(vol)s-cinder" % {"cg": cg_id,
|
|
"snap": cgsnap_id,
|
|
"vol": volume_name}
|
|
|
|
actual_name = pure._get_pgroup_vol_snap_name(mock_snap)
|
|
|
|
self.assertEqual(expected_name, actual_name)
|
|
|
|
def test_create_consistencygroup(self):
|
|
mock_cgroup = mock.Mock()
|
|
mock_cgroup.id = "4a2f7e3a-312a-40c5-96a8-536b8a0fe074"
|
|
|
|
model_update = self.driver.create_consistencygroup(None, mock_cgroup)
|
|
|
|
expected_name = pure._get_pgroup_name_from_id(mock_cgroup.id)
|
|
self.array.create_pgroup.assert_called_with(expected_name)
|
|
self.assertEqual({'status': 'available'}, model_update)
|
|
|
|
self.assert_error_propagates(
|
|
[self.array.create_pgroup],
|
|
self.driver.create_consistencygroup, None, mock_cgroup)
|
|
|
|
@mock.patch(DRIVER_OBJ + ".delete_volume", autospec=True)
|
|
def test_delete_consistencygroup(self, mock_delete_volume):
|
|
mock_cgroup = mock.MagicMock()
|
|
mock_cgroup.id = "4a2f7e3a-312a-40c5-96a8-536b8a0fe074"
|
|
mock_cgroup['status'] = "deleted"
|
|
mock_context = mock.Mock()
|
|
self.driver.db = mock.Mock()
|
|
mock_volume = mock.MagicMock()
|
|
expected_volumes = [mock_volume]
|
|
self.driver.db.volume_get_all_by_group.return_value = expected_volumes
|
|
|
|
model_update, volumes = \
|
|
self.driver.delete_consistencygroup(mock_context, mock_cgroup)
|
|
|
|
expected_name = pure._get_pgroup_name_from_id(mock_cgroup.id)
|
|
self.array.destroy_pgroup.assert_called_with(expected_name)
|
|
self.assertEqual(expected_volumes, volumes)
|
|
self.assertEqual(mock_cgroup['status'], model_update['status'])
|
|
mock_delete_volume.assert_called_with(self.driver, mock_volume)
|
|
|
|
self.array.destroy_pgroup.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
code=400,
|
|
text="Protection group has been destroyed."
|
|
)
|
|
self.driver.delete_consistencygroup(mock_context, mock_cgroup)
|
|
self.array.destroy_pgroup.assert_called_with(expected_name)
|
|
mock_delete_volume.assert_called_with(self.driver, mock_volume)
|
|
|
|
self.array.destroy_pgroup.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
code=400,
|
|
text="Protection group does not exist"
|
|
)
|
|
self.driver.delete_consistencygroup(mock_context, mock_cgroup)
|
|
self.array.destroy_pgroup.assert_called_with(expected_name)
|
|
mock_delete_volume.assert_called_with(self.driver, mock_volume)
|
|
|
|
self.array.destroy_pgroup.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
code=400,
|
|
text="Some other error"
|
|
)
|
|
self.assertRaises(self.purestorage_module.PureHTTPError,
|
|
self.driver.delete_consistencygroup,
|
|
mock_context,
|
|
mock_volume)
|
|
|
|
self.array.destroy_pgroup.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
code=500,
|
|
text="Another different error"
|
|
)
|
|
self.assertRaises(self.purestorage_module.PureHTTPError,
|
|
self.driver.delete_consistencygroup,
|
|
mock_context,
|
|
mock_volume)
|
|
|
|
self.array.destroy_pgroup.side_effect = None
|
|
self.assert_error_propagates(
|
|
[self.array.destroy_pgroup],
|
|
self.driver.delete_consistencygroup, mock_context, mock_cgroup)
|
|
|
|
def test_create_cgsnapshot(self):
|
|
mock_cgsnap = mock.Mock()
|
|
mock_cgsnap.id = "4a2f7e3a-312a-40c5-96a8-536b8a0fe074"
|
|
mock_cgsnap.consistencygroup_id = \
|
|
"4a2f7e3a-312a-40c5-96a8-536b8a0fe075"
|
|
mock_context = mock.Mock()
|
|
self.driver.db = mock.Mock()
|
|
mock_snap = mock.MagicMock()
|
|
expected_snaps = [mock_snap]
|
|
self.driver.db.snapshot_get_all_for_cgsnapshot.return_value = \
|
|
expected_snaps
|
|
|
|
model_update, snapshots = \
|
|
self.driver.create_cgsnapshot(mock_context, mock_cgsnap)
|
|
|
|
expected_pgroup_name = \
|
|
pure._get_pgroup_name_from_id(mock_cgsnap.consistencygroup_id)
|
|
expected_snap_suffix = pure._get_pgroup_snap_suffix(mock_cgsnap)
|
|
self.array.create_pgroup_snapshot\
|
|
.assert_called_with(expected_pgroup_name,
|
|
suffix=expected_snap_suffix)
|
|
self.assertEqual({'status': 'available'}, model_update)
|
|
self.assertEqual(expected_snaps, snapshots)
|
|
self.assertEqual('available', mock_snap.status)
|
|
|
|
self.assert_error_propagates(
|
|
[self.array.create_pgroup_snapshot],
|
|
self.driver.create_cgsnapshot, mock_context, mock_cgsnap)
|
|
|
|
@mock.patch(DRIVER_PATH + "._get_pgroup_snap_name", autospec=True)
|
|
def test_delete_cgsnapshot(self, mock_get_snap_name):
|
|
snap_name = "consisgroup-4a2f7e3a-312a-40c5-96a8-536b8a0f" \
|
|
"e074-cinder.4a2f7e3a-312a-40c5-96a8-536b8a0fe075"
|
|
mock_get_snap_name.return_value = snap_name
|
|
mock_cgsnap = mock.Mock()
|
|
mock_cgsnap.status = 'deleted'
|
|
mock_context = mock.Mock()
|
|
mock_snap = mock.MagicMock()
|
|
expected_snaps = [mock_snap]
|
|
self.driver.db = mock.Mock()
|
|
self.driver.db.snapshot_get_all_for_cgsnapshot.return_value = \
|
|
expected_snaps
|
|
|
|
model_update, snapshots = \
|
|
self.driver.delete_cgsnapshot(mock_context, mock_cgsnap)
|
|
|
|
self.array.destroy_pgroup.assert_called_with(snap_name)
|
|
self.assertEqual({'status': mock_cgsnap.status}, model_update)
|
|
self.assertEqual(expected_snaps, snapshots)
|
|
self.assertEqual('deleted', mock_snap.status)
|
|
|
|
self.array.destroy_pgroup.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
code=400,
|
|
text="Protection group snapshot has been destroyed."
|
|
)
|
|
self.driver.delete_cgsnapshot(mock_context, mock_cgsnap)
|
|
self.array.destroy_pgroup.assert_called_with(snap_name)
|
|
|
|
self.array.destroy_pgroup.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
code=400,
|
|
text="Protection group snapshot does not exist"
|
|
)
|
|
self.driver.delete_cgsnapshot(mock_context, mock_cgsnap)
|
|
self.array.destroy_pgroup.assert_called_with(snap_name)
|
|
|
|
self.array.destroy_pgroup.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
code=400,
|
|
text="Some other error"
|
|
)
|
|
self.assertRaises(self.purestorage_module.PureHTTPError,
|
|
self.driver.delete_cgsnapshot,
|
|
mock_context,
|
|
mock_cgsnap)
|
|
|
|
self.array.destroy_pgroup.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
code=500,
|
|
text="Another different error"
|
|
)
|
|
self.assertRaises(self.purestorage_module.PureHTTPError,
|
|
self.driver.delete_cgsnapshot,
|
|
mock_context,
|
|
mock_cgsnap)
|
|
|
|
self.array.destroy_pgroup.side_effect = None
|
|
|
|
self.assert_error_propagates(
|
|
[self.array.destroy_pgroup],
|
|
self.driver.delete_cgsnapshot, mock_context, mock_cgsnap)
|
|
|
|
def test_manage_existing(self):
|
|
ref_name = 'vol1'
|
|
volume_ref = {'name': ref_name}
|
|
self.array.list_volume_private_connections.return_value = []
|
|
vol_name = VOLUME['name'] + '-cinder'
|
|
self.driver.manage_existing(VOLUME, volume_ref)
|
|
self.array.list_volume_private_connections.assert_called_with(ref_name)
|
|
self.array.rename_volume.assert_called_with(ref_name, vol_name)
|
|
|
|
def test_manage_existing_error_propagates(self):
|
|
self.array.list_volume_private_connections.return_value = []
|
|
self.assert_error_propagates(
|
|
[self.array.list_volume_private_connections,
|
|
self.array.rename_volume],
|
|
self.driver.manage_existing,
|
|
VOLUME, {'name': 'vol1'}
|
|
)
|
|
|
|
def test_manage_existing_bad_ref(self):
|
|
self.assertRaises(exception.ManageExistingInvalidReference,
|
|
self.driver.manage_existing,
|
|
VOLUME, {'bad_key': 'bad_value'})
|
|
|
|
self.assertRaises(exception.ManageExistingInvalidReference,
|
|
self.driver.manage_existing,
|
|
VOLUME, {'name': ''})
|
|
|
|
self.assertRaises(exception.ManageExistingInvalidReference,
|
|
self.driver.manage_existing,
|
|
VOLUME, {'name': None})
|
|
|
|
self.array.get_volume.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
text="Volume does not exist.",
|
|
code=400
|
|
)
|
|
self.assertRaises(exception.ManageExistingInvalidReference,
|
|
self.driver.manage_existing,
|
|
VOLUME, {'name': 'non-existing-volume'})
|
|
|
|
def test_manage_existing_with_connected_hosts(self):
|
|
ref_name = 'vol1'
|
|
self.array.list_volume_private_connections.return_value = \
|
|
["host1", "host2"]
|
|
|
|
self.assertRaises(exception.ManageExistingInvalidReference,
|
|
self.driver.manage_existing,
|
|
VOLUME, {'name': ref_name})
|
|
|
|
self.array.list_volume_private_connections.assert_called_with(ref_name)
|
|
self.assertFalse(self.array.rename_volume.called)
|
|
|
|
def test_manage_existing_get_size(self):
|
|
ref_name = 'vol1'
|
|
volume_ref = {'name': ref_name}
|
|
expected_size = 5
|
|
self.array.get_volume.return_value = {"size": 5368709120}
|
|
|
|
size = self.driver.manage_existing_get_size(VOLUME, volume_ref)
|
|
|
|
self.assertEqual(expected_size, size)
|
|
self.array.get_volume.assert_called_with(ref_name)
|
|
|
|
def test_manage_existing_get_size_error_propagates(self):
|
|
self.array.get_volume.return_value = mock.MagicMock()
|
|
self.assert_error_propagates([self.array.get_volume],
|
|
self.driver.manage_existing_get_size,
|
|
VOLUME, {'name': 'vol1'})
|
|
|
|
def test_manage_existing_get_size_bad_ref(self):
|
|
self.assertRaises(exception.ManageExistingInvalidReference,
|
|
self.driver.manage_existing_get_size,
|
|
VOLUME, {'bad_key': 'bad_value'})
|
|
|
|
self.assertRaises(exception.ManageExistingInvalidReference,
|
|
self.driver.manage_existing_get_size,
|
|
VOLUME, {'name': ''})
|
|
|
|
self.assertRaises(exception.ManageExistingInvalidReference,
|
|
self.driver.manage_existing_get_size,
|
|
VOLUME, {'name': None})
|
|
|
|
def test_unmanage(self):
|
|
vol_name = VOLUME['name'] + "-cinder"
|
|
unmanaged_vol_name = vol_name + "-unmanaged"
|
|
|
|
self.driver.unmanage(VOLUME)
|
|
|
|
self.array.rename_volume.assert_called_with(vol_name,
|
|
unmanaged_vol_name)
|
|
|
|
def test_unmanage_error_propagates(self):
|
|
self.assert_error_propagates([self.array.rename_volume],
|
|
self.driver.unmanage,
|
|
VOLUME)
|
|
|
|
def test_unmanage_with_deleted_volume(self):
|
|
vol_name = VOLUME['name'] + "-cinder"
|
|
unmanaged_vol_name = vol_name + "-unmanaged"
|
|
self.array.rename_volume.side_effect = \
|
|
self.purestorage_module.PureHTTPError(
|
|
text="Volume does not exist.",
|
|
code=400
|
|
)
|
|
|
|
self.driver.unmanage(VOLUME)
|
|
|
|
self.array.rename_volume.assert_called_with(vol_name,
|
|
unmanaged_vol_name)
|