177 lines
7.2 KiB
Python
177 lines
7.2 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 exception
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from cinder.objects import fields
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from cinder.objects import volume_attachment
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from cinder.tests.unit import fake_volume
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from cinder.tests.unit.volume.drivers.dell_emc import powerstore
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from cinder.volume.drivers.dell_emc.powerstore import utils
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class TestVolumeAttachDetach(powerstore.TestPowerStoreDriver):
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@mock.patch("cinder.volume.drivers.dell_emc.powerstore.client."
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"PowerStoreClient.get_chap_config")
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def setUp(self, mock_chap):
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super(TestVolumeAttachDetach, self).setUp()
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mock_chap.return_value = {"mode": "Single"}
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self.iscsi_driver.check_for_setup_error()
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self.fc_driver.check_for_setup_error()
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self.volume = fake_volume.fake_volume_obj(
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self.context,
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host="host@backend",
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provider_id="fake_id",
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size=8
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)
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self.volume.volume_attachment = (
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volume_attachment.VolumeAttachmentList()
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)
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self.volume.volume_attachment.objects = [
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volume_attachment.VolumeAttachment(
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attach_status=fields.VolumeAttachStatus.ATTACHED,
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attached_host=self.volume.host
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),
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volume_attachment.VolumeAttachment(
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attach_status=fields.VolumeAttachStatus.ATTACHED,
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attached_host=self.volume.host
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)
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]
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fake_iscsi_targets_response = [
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{
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"address": "1.2.3.4",
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"ip_port": {
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"target_iqn":
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"iqn.2020-07.com.dell:dellemc-powerstore-test-iqn-1"
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},
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},
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{
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"address": "5.6.7.8",
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"ip_port": {
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"target_iqn":
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"iqn.2020-07.com.dell:dellemc-powerstore-test-iqn-1"
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},
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},
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]
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fake_fc_wwns_response = [
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{
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"wwn": "58:cc:f0:98:49:21:07:02"
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},
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{
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"wwn": "58:cc:f0:98:49:23:07:02"
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},
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]
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self.fake_connector = {
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"host": self.volume.host,
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"wwpns": ["58:cc:f0:98:49:21:07:02", "58:cc:f0:98:49:23:07:02"],
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"initiator": "fake_initiator",
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}
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self.iscsi_targets_mock = self.mock_object(
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self.iscsi_driver.adapter.client,
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"get_ip_pool_address",
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return_value=fake_iscsi_targets_response
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)
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self.fc_wwns_mock = self.mock_object(
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self.fc_driver.adapter.client,
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"get_fc_port",
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return_value=fake_fc_wwns_response
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)
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def test_initialize_connection_chap_enabled(self):
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self.iscsi_driver.adapter.use_chap_auth = True
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with mock.patch.object(self.iscsi_driver.adapter,
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"_create_host_and_attach",
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return_value=(
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utils.get_chap_credentials(),
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1
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)):
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connection_properties = self.iscsi_driver.initialize_connection(
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self.volume,
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self.fake_connector
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)
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self.assertIn("auth_username", connection_properties["data"])
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self.assertIn("auth_password", connection_properties["data"])
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def test_initialize_connection_chap_disabled(self):
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self.iscsi_driver.adapter.use_chap_auth = False
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with mock.patch.object(self.iscsi_driver.adapter,
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"_create_host_and_attach",
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return_value=(
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utils.get_chap_credentials(),
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1
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)):
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connection_properties = self.iscsi_driver.initialize_connection(
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self.volume,
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self.fake_connector
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)
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self.assertNotIn("auth_username", connection_properties["data"])
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self.assertNotIn("auth_password", connection_properties["data"])
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def test_get_fc_targets(self):
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wwns = self.fc_driver.adapter._get_fc_targets()
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self.assertEqual(2, len(wwns))
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def test_get_fc_targets_filtered(self):
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self.fc_driver.adapter.allowed_ports = ["58:cc:f0:98:49:23:07:02"]
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wwns = self.fc_driver.adapter._get_fc_targets()
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self.assertEqual(1, len(wwns))
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self.assertFalse(
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utils.fc_wwn_to_string("58:cc:f0:98:49:21:07:02") in wwns
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)
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def test_get_fc_targets_filtered_no_matched_ports(self):
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self.fc_driver.adapter.allowed_ports = ["fc_wwn_1", "fc_wwn_2"]
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error = self.assertRaises(exception.VolumeBackendAPIException,
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self.fc_driver.adapter._get_fc_targets)
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self.assertIn("There are no accessible Fibre Channel targets on the "
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"system.", error.msg)
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def test_get_iscsi_targets(self):
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iqns, portals = self.iscsi_driver.adapter._get_iscsi_targets()
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self.assertTrue(len(iqns) == len(portals))
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self.assertEqual(2, len(portals))
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def test_get_iscsi_targets_filtered(self):
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self.iscsi_driver.adapter.allowed_ports = ["1.2.3.4"]
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iqns, portals = self.iscsi_driver.adapter._get_iscsi_targets()
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self.assertTrue(len(iqns) == len(portals))
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self.assertEqual(1, len(portals))
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self.assertFalse(
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"iqn.2020-07.com.dell:dellemc-powerstore-test-iqn-2" in iqns
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)
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def test_get_iscsi_targets_filtered_no_matched_ports(self):
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self.iscsi_driver.adapter.allowed_ports = ["1.1.1.1", "2.2.2.2"]
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error = self.assertRaises(exception.VolumeBackendAPIException,
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self.iscsi_driver.adapter._get_iscsi_targets)
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self.assertIn("There are no accessible iSCSI targets on the system.",
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error.msg)
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@mock.patch("cinder.volume.drivers.dell_emc.powerstore.adapter."
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"CommonAdapter._detach_volume_from_hosts")
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@mock.patch("cinder.volume.drivers.dell_emc.powerstore.adapter."
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"CommonAdapter._filter_hosts_by_initiators")
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def test_detach_multiattached_volume(self, mock_filter_hosts, mock_detach):
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self.iscsi_driver.terminate_connection(self.volume,
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self.fake_connector)
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mock_filter_hosts.assert_not_called()
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mock_detach.assert_not_called()
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self.volume.volume_attachment.objects.pop()
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self.iscsi_driver.terminate_connection(self.volume,
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self.fake_connector)
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mock_filter_hosts.assert_called_once()
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mock_detach.assert_called_once()
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