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cloudstack/test/integration/plugins/solidfire/TestVMSnapshots.py

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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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 logging
import random
import SignedAPICall
import time
import XenAPI
from solidfire.factory import ElementFactory
from util import sf_util
# All tests inherit from cloudstackTestCase
from marvin.cloudstackTestCase import cloudstackTestCase
# Import Integration Libraries
# base - contains all resources as entities and defines create, delete, list operations on them
from marvin.lib.base import Account, DiskOffering, ServiceOffering, StoragePool, User, VirtualMachine, VmSnapshot, Volume
# common - commonly used methods for all tests are listed here
from marvin.lib.common import get_domain, get_template, get_zone, list_hosts, list_volumes
# utils - utility classes for common cleanup, external library wrappers, etc.
from marvin.lib.utils import cleanup_resources
# Prerequisites:
# Only one zone
# Only one pod
# Only one cluster
# Running the tests:
# Change the "hypervisor_type" variable to control which hypervisor type to test.
# If using XenServer, verify the "xen_server_hostname" variable is correct.
class TestData:
account = "account"
capacityBytes = "capacitybytes"
capacityIops = "capacityiops"
clusterId = "clusterId"
computeOffering = "computeoffering"
diskOffering = "diskoffering"
domainId = "domainId"
hypervisor = "hypervisor"
login = "login"
mvip = "mvip"
password = "password"
port = "port"
primaryStorage = "primarystorage"
provider = "provider"
scope = "scope"
solidFire = "solidfire"
storageTag = "SolidFire_SAN_1"
tags = "tags"
url = "url"
user = "user"
username = "username"
virtualMachine = "virtualmachine"
volume_1 = "volume_1"
xenServer = "xenserver"
zoneId = "zoneId"
# modify to control which hypervisor type to test
hypervisor_type = xenServer
xen_server_hostname = "XenServer-6.5-1"
def __init__(self):
self.testdata = {
TestData.solidFire: {
TestData.mvip: "10.117.40.120",
TestData.username: "admin",
TestData.password: "admin",
TestData.port: 443,
TestData.url: "https://10.117.40.120:443"
},
TestData.xenServer: {
TestData.username: "root",
TestData.password: "solidfire"
},
TestData.account: {
"email": "test@test.com",
"firstname": "John",
"lastname": "Doe",
TestData.username: "test",
TestData.password: "test"
},
TestData.user: {
"email": "user@test.com",
"firstname": "Jane",
"lastname": "Doe",
TestData.username: "testuser",
TestData.password: "password"
},
TestData.primaryStorage: {
"name": "SolidFire-%d" % random.randint(0, 100),
TestData.scope: "ZONE",
"url": "MVIP=10.117.40.120;SVIP=10.117.41.120;" +
"clusterAdminUsername=admin;clusterAdminPassword=admin;" +
"clusterDefaultMinIops=10000;clusterDefaultMaxIops=15000;" +
"clusterDefaultBurstIopsPercentOfMaxIops=1.5;",
TestData.provider: "SolidFire",
TestData.tags: TestData.storageTag,
TestData.capacityIops: 4500000,
TestData.capacityBytes: 2251799813685248,
TestData.hypervisor: "Any"
},
TestData.virtualMachine: {
"name": "TestVM",
"displayname": "Test VM"
},
TestData.computeOffering: {
"name": "SF_CO_1",
"displaytext": "SF_CO_1 (Min IOPS = 10,000; Max IOPS = 15,000)",
"cpunumber": 1,
"cpuspeed": 100,
"memory": 128,
"storagetype": "shared",
"customizediops": False,
"miniops": "10000",
"maxiops": "15000",
"hypervisorsnapshotreserve": 400,
TestData.tags: TestData.storageTag
},
TestData.diskOffering: {
"name": "SF_DO_1",
"displaytext": "SF_DO_1 (Min IOPS = 300; Max IOPS = 500)",
"disksize": 128,
"customizediops": False,
"miniops": 300,
"maxiops": 500,
"hypervisorsnapshotreserve": 400,
TestData.tags: TestData.storageTag,
"storagetype": "shared"
},
TestData.volume_1: {
"diskname": "testvolume",
},
TestData.zoneId: 1,
TestData.clusterId: 1,
TestData.domainId: 1,
TestData.url: "10.117.40.114"
}
class TestVMSnapshots(cloudstackTestCase):
_should_be_no_vm_snapshots_err_msg = "There should be no VM snapshots."
_should_only_be_one_vm_snapshot_err_msg = "There should only be one VM snapshot."
_should_only_be_one_root_volume_err_msg = "There should only be one root volume."
_path_should_have_changed_err_msg = "The 'path' in the 'DB' should have changed."
_path_should_not_have_changed_err_msg = "The 'path' in the 'DB' should not have changed."
_should_only_be_one_vdi_err_msg = "There should only be one VDI."
_should_be_three_vdis_err_msg = "There should be three VDIs."
_active_vdis_should_not_be_the_same_err_msg = "The active VDIs should not be the same."
_active_vdis_should_be_the_same_err_msg = "The active VDIs should be the same."
_snapshot_vdis_should_be_the_same_err_msg = "The snapshot VDIs should be the same."
_base_vdis_should_be_the_same_err_msg = "The base VDIs should be the same."
_snapshot_parent_not_correct_err_msg = "Snapshot's parent is not correct."
@classmethod
def setUpClass(cls):
# Set up API client
testclient = super(TestVMSnapshots, cls).getClsTestClient()
cls.apiClient = testclient.getApiClient()
cls.configData = testclient.getParsedTestDataConfig()
cls.testdata = TestData().testdata
# Set up XenAPI connection
host_ip = "https://" + \
list_hosts(cls.apiClient, clusterid=cls.testdata[TestData.clusterId], name=TestData.xen_server_hostname)[0].ipaddress
cls.xen_session = XenAPI.Session(host_ip)
xenserver = cls.testdata[TestData.xenServer]
cls.xen_session.xenapi.login_with_password(xenserver[TestData.username], xenserver[TestData.password])
# Set up SolidFire connection
solidfire = cls.testdata[TestData.solidFire]
cls.sfe = ElementFactory.create(solidfire[TestData.mvip], solidfire[TestData.username], solidfire[TestData.password])
# Get Resources from Cloud Infrastructure
cls.zone = get_zone(cls.apiClient, zone_id=cls.testdata[TestData.zoneId])
template = get_template(cls.apiClient, cls.zone.id, hypervisor=TestData.hypervisor_type)
cls.domain = get_domain(cls.apiClient, cls.testdata[TestData.domainId])
# Create test account
cls.account = Account.create(
cls.apiClient,
cls.testdata[TestData.account],
admin=1
)
# Set up connection to make customized API calls
user = User.create(
cls.apiClient,
cls.testdata[TestData.user],
account=cls.account.name,
domainid=cls.domain.id
)
url = cls.testdata[TestData.url]
api_url = "http://" + url + ":8080/client/api"
userkeys = User.registerUserKeys(cls.apiClient, user.id)
cls.cs_api = SignedAPICall.CloudStack(api_url, userkeys.apikey, userkeys.secretkey)
primarystorage = cls.testdata[TestData.primaryStorage]
cls.primary_storage = StoragePool.create(
cls.apiClient,
primarystorage,
scope=primarystorage[TestData.scope],
zoneid=cls.zone.id,
provider=primarystorage[TestData.provider],
tags=primarystorage[TestData.tags],
capacityiops=primarystorage[TestData.capacityIops],
capacitybytes=primarystorage[TestData.capacityBytes],
hypervisor=primarystorage[TestData.hypervisor]
)
compute_offering = ServiceOffering.create(
cls.apiClient,
cls.testdata[TestData.computeOffering]
)
cls.disk_offering = DiskOffering.create(
cls.apiClient,
cls.testdata[TestData.diskOffering]
)
# Create VM and volume for tests
cls.virtual_machine = VirtualMachine.create(
cls.apiClient,
cls.testdata[TestData.virtualMachine],
accountid=cls.account.name,
zoneid=cls.zone.id,
serviceofferingid=compute_offering.id,
templateid=template.id,
domainid=cls.domain.id,
startvm=True
)
cls._cleanup = [
compute_offering,
cls.disk_offering,
user,
cls.account
]
@classmethod
def tearDownClass(cls):
try:
time.sleep(60)
cls.virtual_machine.delete(cls.apiClient, True)
cleanup_resources(cls.apiClient, cls._cleanup)
cls.primary_storage.delete(cls.apiClient)
sf_util.purge_solidfire_volumes(cls.sfe)
except Exception as e:
logging.debug("Exception in tearDownClass(cls): %s" % e)
def setUp(self):
self.cleanup = []
def tearDown(self):
try:
cleanup_resources(self.apiClient, self.cleanup)
except Exception as e:
logging.debug("Exception in tearDown(self): %s" % e)
def test_01_take_VM_snapshot(self):
self.virtual_machine.start(self.apiClient)
root_volumes = list_volumes(self.apiClient, type="ROOT", listAll="true")
sf_util.check_list(root_volumes, 1, self, TestVMSnapshots._should_only_be_one_root_volume_err_msg)
root_volume = root_volumes[0]
volume_id = {'volumeid': root_volume.id}
sf_iscsi_name_result = self.cs_api.getVolumeiScsiName(volume_id)
sf_iscsi_name = sf_iscsi_name_result['apivolumeiscsiname']['volumeiScsiName']
sf_util.check_iscsi_name(sf_iscsi_name, self)
root_volume_path_1 = self._get_path(volume_id)
#######################################
#######################################
# STEP 1: Take snapshot of running VM #
#######################################
#######################################
vm_snapshot = VmSnapshot.create(
self.apiClient,
vmid=self.virtual_machine.id,
snapshotmemory="false",
name="Test Snapshot",
description="Test Snapshot Desc"
)
list_vm_snapshots = VmSnapshot.list(self.apiClient, listAll="true")
self._verify_vm_snapshot(list_vm_snapshots, vm_snapshot)
root_volume_path_2 = self._get_path(volume_id)
self.assertEqual(
root_volume_path_1,
root_volume_path_2,
TestVMSnapshots._path_should_not_have_changed_err_msg
)
xen_sr = self.xen_session.xenapi.SR.get_by_name_label(sf_iscsi_name)[0]
xen_vdis = self.xen_session.xenapi.SR.get_VDIs(xen_sr)
sf_util.check_list(xen_vdis, 3, self, TestVMSnapshots._should_be_three_vdis_err_msg)
vdis_after_create = self._get_vdis(xen_vdis)
vdiSnapshotOf = self.xen_session.xenapi.VDI.get_record(vdis_after_create.snapshot_vdi["snapshot_of"])
self.assertEqual(
vdiSnapshotOf["uuid"],
vdis_after_create.active_vdi["uuid"],
TestVMSnapshots._snapshot_parent_not_correct_err_msg
)
#######################################
#######################################
### STEP 2: Revert VM to Snapshot ###
#######################################
#######################################
self.virtual_machine.stop(self.apiClient)
VmSnapshot.revertToSnapshot(self.apiClient, vmsnapshotid=vm_snapshot.id)
list_vm_snapshots = VmSnapshot.list(self.apiClient, listAll="true")
sf_util.check_list(list_vm_snapshots, 1, self, TestVMSnapshots._should_only_be_one_vm_snapshot_err_msg)
root_volume_path_3 = self._get_path(volume_id)
self.assertNotEqual(
root_volume_path_1,
root_volume_path_3,
TestVMSnapshots._path_should_have_changed_err_msg
)
xen_vdis = self.xen_session.xenapi.SR.get_VDIs(xen_sr)
sf_util.check_list(xen_vdis, 3, self, TestVMSnapshots._should_be_three_vdis_err_msg)
vdis_after_revert = self._get_vdis(xen_vdis)
self.assertNotEqual(
vdis_after_create.active_vdi["uuid"],
vdis_after_revert.active_vdi["uuid"],
TestVMSnapshots._active_vdis_should_not_be_the_same_err_msg
)
self.assertEqual(
vdis_after_create.snapshot_vdi["uuid"],
vdis_after_revert.snapshot_vdi["uuid"],
TestVMSnapshots._snapshot_vdis_should_be_the_same_err_msg
)
self.assertEqual(
vdis_after_create.base_vdi["uuid"],
vdis_after_revert.base_vdi["uuid"],
TestVMSnapshots._base_vdis_should_be_the_same_err_msg
)
#######################################
#######################################
##### STEP 3: Delete VM snapshot #####
#######################################
#######################################
VmSnapshot.deleteVMSnapshot(self.apiClient, vmsnapshotid=vm_snapshot.id)
list_vm_snapshots = VmSnapshot.list(self.apiClient, listAll="true")
self.assertEqual(
list_vm_snapshots,
None,
TestVMSnapshots._should_be_no_vm_snapshots_err_msg
)
root_volume_path_4 = self._get_path(volume_id)
self.assertEqual(
root_volume_path_3,
root_volume_path_4,
TestVMSnapshots._path_should_not_have_changed_err_msg
)
xen_vdis = self.xen_session.xenapi.SR.get_VDIs(xen_sr)
sf_util.check_list(xen_vdis, 1, self, TestVMSnapshots._should_only_be_one_vdi_err_msg)
vdis_after_delete = self._get_vdis(xen_vdis, True)
self.assertEqual(
vdis_after_revert.active_vdi["uuid"],
vdis_after_delete.active_vdi["uuid"],
TestVMSnapshots._active_vdis_should_be_the_same_err_msg
)
#######################################
#######################################
##### STEP 4: Start VM #####
#######################################
#######################################
self.virtual_machine.start(self.apiClient)
def test_02_take_VM_snapshot_with_data_disk(self):
self.virtual_machine.start(self.apiClient)
data_volume = Volume.create(
self.apiClient,
self.testdata[TestData.volume_1],
account=self.account.name,
domainid=self.domain.id,
zoneid=self.zone.id,
diskofferingid=self.disk_offering.id
)
self.cleanup = [data_volume]
self.virtual_machine.attach_volume(self.apiClient, data_volume)
root_volumes = list_volumes(self.apiClient, type="ROOT", listAll="true")
sf_util.check_list(root_volumes, 1, self, TestVMSnapshots._should_only_be_one_root_volume_err_msg)
root_volume = root_volumes[0]
root_volume_id = {'volumeid': root_volume.id}
sf_iscsi_name_result = self.cs_api.getVolumeiScsiName(root_volume_id)
sf_iscsi_root_volume_name = sf_iscsi_name_result['apivolumeiscsiname']['volumeiScsiName']
sf_util.check_iscsi_name(sf_iscsi_root_volume_name, self)
root_volume_path_1 = self._get_path(root_volume_id)
data_volumes = list_volumes(self.apiClient, type="DATADISK", listAll="true")
sf_util.check_list(data_volumes, 1, self, "There should only be one data volume.")
data_volume = data_volumes[0]
data_volume_id = {'volumeid': data_volume.id}
sf_iscsi_name_result = self.cs_api.getVolumeiScsiName(data_volume_id)
sf_iscsi_data_volume_name = sf_iscsi_name_result['apivolumeiscsiname']['volumeiScsiName']
sf_util.check_iscsi_name(sf_iscsi_data_volume_name, self)
data_volume_path_1 = self._get_path(data_volume_id)
#######################################
#######################################
# STEP 1: Take snapshot of running VM #
#######################################
#######################################
vm_snapshot = VmSnapshot.create(
self.apiClient,
vmid=self.virtual_machine.id,
snapshotmemory="false",
name="Test Snapshot",
description="Test Snapshot Desc"
)
list_vm_snapshots = VmSnapshot.list(self.apiClient, listAll="true")
self._verify_vm_snapshot(list_vm_snapshots, vm_snapshot)
root_volume_path_2 = self._get_path(root_volume_id)
self.assertEqual(
root_volume_path_1,
root_volume_path_2,
TestVMSnapshots._path_should_not_have_changed_err_msg
)
data_volume_path_2 = self._get_path(data_volume_id)
self.assertEqual(
data_volume_path_1,
data_volume_path_2,
TestVMSnapshots._path_should_not_have_changed_err_msg
)
root_volume_xen_sr = self.xen_session.xenapi.SR.get_by_name_label(sf_iscsi_root_volume_name)[0]
root_volume_xen_vdis = self.xen_session.xenapi.SR.get_VDIs(root_volume_xen_sr)
sf_util.check_list(root_volume_xen_vdis, 3, self, TestVMSnapshots._should_be_three_vdis_err_msg)
root_volume_vdis_after_create = self._get_vdis(root_volume_xen_vdis)
vdiSnapshotOf = self.xen_session.xenapi.VDI.get_record(root_volume_vdis_after_create.snapshot_vdi["snapshot_of"])
self.assertEqual(
vdiSnapshotOf["uuid"],
root_volume_vdis_after_create.active_vdi["uuid"],
TestVMSnapshots._snapshot_parent_not_correct_err_msg
)
data_volume_xen_sr = self.xen_session.xenapi.SR.get_by_name_label(sf_iscsi_data_volume_name)[0]
data_volume_xen_vdis = self.xen_session.xenapi.SR.get_VDIs(data_volume_xen_sr)
sf_util.check_list(data_volume_xen_vdis, 3, self, TestVMSnapshots._should_be_three_vdis_err_msg)
data_volume_vdis_after_create = self._get_vdis(data_volume_xen_vdis)
vdiSnapshotOf = self.xen_session.xenapi.VDI.get_record(data_volume_vdis_after_create.snapshot_vdi["snapshot_of"])
self.assertEqual(
vdiSnapshotOf["uuid"],
data_volume_vdis_after_create.active_vdi["uuid"],
TestVMSnapshots._snapshot_parent_not_correct_err_msg
)
#######################################
#######################################
### STEP 2: Revert VM to Snapshot ###
#######################################
#######################################
self.virtual_machine.stop(self.apiClient)
VmSnapshot.revertToSnapshot(self.apiClient, vmsnapshotid=vm_snapshot.id)
list_vm_snapshots = VmSnapshot.list(self.apiClient, listAll="true")
sf_util.check_list(list_vm_snapshots, 1, self, TestVMSnapshots._should_only_be_one_vm_snapshot_err_msg)
root_volume_path_3 = self._get_path(root_volume_id)
self.assertNotEqual(
root_volume_path_1,
root_volume_path_3,
TestVMSnapshots._path_should_have_changed_err_msg
)
root_volume_xen_vdis = self.xen_session.xenapi.SR.get_VDIs(root_volume_xen_sr)
sf_util.check_list(root_volume_xen_vdis, 3, self, TestVMSnapshots._should_be_three_vdis_err_msg)
root_volume_vdis_after_revert = self._get_vdis(root_volume_xen_vdis)
self.assertNotEqual(
root_volume_vdis_after_create.active_vdi["uuid"],
root_volume_vdis_after_revert.active_vdi["uuid"],
TestVMSnapshots._active_vdis_should_not_be_the_same_err_msg
)
self.assertEqual(
root_volume_vdis_after_create.snapshot_vdi["uuid"],
root_volume_vdis_after_revert.snapshot_vdi["uuid"],
TestVMSnapshots._snapshot_vdis_should_be_the_same_err_msg
)
self.assertEqual(
root_volume_vdis_after_create.base_vdi["uuid"],
root_volume_vdis_after_revert.base_vdi["uuid"],
TestVMSnapshots._base_vdis_should_be_the_same_err_msg
)
data_volume_path_3 = self._get_path(data_volume_id)
self.assertNotEqual(
data_volume_path_1,
data_volume_path_3,
TestVMSnapshots._path_should_have_changed_err_msg
)
data_volume_xen_vdis = self.xen_session.xenapi.SR.get_VDIs(data_volume_xen_sr)
sf_util.check_list(data_volume_xen_vdis, 3, self, TestVMSnapshots._should_be_three_vdis_err_msg)
data_volume_vdis_after_revert = self._get_vdis(data_volume_xen_vdis)
self.assertNotEqual(
data_volume_vdis_after_create.active_vdi["uuid"],
data_volume_vdis_after_revert.active_vdi["uuid"],
TestVMSnapshots._active_vdis_should_not_be_the_same_err_msg
)
self.assertEqual(
data_volume_vdis_after_create.snapshot_vdi["uuid"],
data_volume_vdis_after_revert.snapshot_vdi["uuid"],
TestVMSnapshots._snapshot_vdis_should_be_the_same_err_msg
)
self.assertEqual(
data_volume_vdis_after_create.base_vdi["uuid"],
data_volume_vdis_after_revert.base_vdi["uuid"],
TestVMSnapshots._base_vdis_should_be_the_same_err_msg
)
#######################################
#######################################
##### STEP 3: Delete VM snapshot #####
#######################################
#######################################
VmSnapshot.deleteVMSnapshot(self.apiClient, vmsnapshotid=vm_snapshot.id)
list_vm_snapshots = VmSnapshot.list(self.apiClient, listAll="true")
self.assertEqual(
list_vm_snapshots,
None,
TestVMSnapshots._should_be_no_vm_snapshots_err_msg
)
root_volume_path_4 = self._get_path(root_volume_id)
self.assertEqual(
root_volume_path_3,
root_volume_path_4,
TestVMSnapshots._path_should_not_have_changed_err_msg
)
root_volume_xen_vdis = self.xen_session.xenapi.SR.get_VDIs(root_volume_xen_sr)
sf_util.check_list(root_volume_xen_vdis, 1, self, TestVMSnapshots._should_only_be_one_vdi_err_msg)
root_volume_vdis_after_delete = self._get_vdis(root_volume_xen_vdis, True)
self.assertEqual(
root_volume_vdis_after_revert.active_vdi["uuid"],
root_volume_vdis_after_delete.active_vdi["uuid"],
TestVMSnapshots._active_vdis_should_be_the_same_err_msg
)
data_volume_path_4 = self._get_path(data_volume_id)
self.assertEqual(
data_volume_path_3,
data_volume_path_4,
TestVMSnapshots._path_should_not_have_changed_err_msg
)
data_volume_xen_vdis = self.xen_session.xenapi.SR.get_VDIs(data_volume_xen_sr)
sf_util.check_list(data_volume_xen_vdis, 1, self, TestVMSnapshots._should_only_be_one_vdi_err_msg)
data_volume_vdis_after_delete = self._get_vdis(data_volume_xen_vdis, True)
self.assertEqual(
data_volume_vdis_after_revert.active_vdi["uuid"],
data_volume_vdis_after_delete.active_vdi["uuid"],
TestVMSnapshots._active_vdis_should_be_the_same_err_msg
)
#######################################
#######################################
##### STEP 4: Start VM #####
#######################################
#######################################
self.virtual_machine.detach_volume(self.apiClient, data_volume)
self.virtual_machine.start(self.apiClient)
def _get_path(self, volume_id):
path_result = self.cs_api.getPathForVolume(volume_id)
return path_result['apipathforvolume']['path']
def _verify_vm_snapshot(self, list_vm_snapshots, vm_snapshot):
sf_util.check_list(list_vm_snapshots, 1, self, TestVMSnapshots._should_only_be_one_vm_snapshot_err_msg)
vm_snapshot_from_list = list_vm_snapshots[0]
self.assertEqual(
vm_snapshot.id,
vm_snapshot_from_list.id,
"There is a problem with the VM snapshot ID."
)
self.assertEqual(
vm_snapshot.virtualmachineid,
self.virtual_machine.id,
"The ID of the snapshot's virtual machine does not match the expected virtual machine."
)
self.assertEqual(
vm_snapshot.state,
"Ready",
"The snapshot is not in the 'Ready' state."
)
def _get_vdis(self, xen_vdis, only_active_expected=False):
expected_number_of_vdis = 1 if only_active_expected else 3
self.assertEqual(
len(xen_vdis),
expected_number_of_vdis,
"The list had an unexpected number of items in it."
)
active_vdi = None
snapshot_vdi = None
base_vdi = None
for temp_vdi in xen_vdis:
temp = self.xen_session.xenapi.VDI.get_record(temp_vdi)
if temp["name_label"] == "base copy":
base_vdi = temp
else:
if temp["is_a_snapshot"] == True:
snapshot_vdi = temp
else:
active_vdi = temp
self.assertNotEqual(
active_vdi,
None,
"The active VDI could not be located."
)
if only_active_expected:
self.assertEqual(
snapshot_vdi,
None,
"The snapshot VDI should not be present."
)
self.assertEqual(
base_vdi,
None,
"The base VDI should not be present."
)
else:
self.assertNotEqual(
snapshot_vdi,
None,
"The snapshot VDI could not be located."
)
self.assertNotEqual(
base_vdi,
None,
"The base VDI could not be located."
)
class VdiCollection(object):
pass
vdis = VdiCollection()
vdis.active_vdi = active_vdi
vdis.snapshot_vdi = snapshot_vdi
vdis.base_vdi = base_vdi
return vdis
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