nova/nova/tests/unit/virt/powervm/test_driver.py

651 lines
30 KiB
Python

# Copyright 2016, 2018 IBM Corp.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import contextlib
import fixtures
import mock
from oslo_serialization import jsonutils
from oslo_utils.fixture import uuidsentinel as uuids
from pypowervm import const as pvm_const
from pypowervm import exceptions as pvm_exc
from pypowervm.helpers import log_helper as pvm_hlp_log
from pypowervm.helpers import vios_busy as pvm_hlp_vbusy
from pypowervm.utils import transaction as pvm_tx
from pypowervm.wrappers import virtual_io_server as pvm_vios
import six
from nova import block_device as nova_block_device
from nova.compute import provider_tree
from nova import conf as cfg
from nova import exception
from nova.objects import block_device as bdmobj
from nova import test
from nova.tests.unit.virt import powervm
from nova.virt import block_device as nova_virt_bdm
from nova.virt import driver as nova_driver
from nova.virt.driver import ComputeDriver
from nova.virt import hardware
from nova.virt.powervm.disk import ssp
from nova.virt.powervm import driver
CONF = cfg.CONF
class TestPowerVMDriver(test.NoDBTestCase):
def setUp(self):
super(TestPowerVMDriver, self).setUp()
self.drv = driver.PowerVMDriver('virtapi')
self.adp = self.useFixture(fixtures.MockPatch(
'pypowervm.adapter.Adapter', autospec=True)).mock
self.drv.adapter = self.adp
self.sess = self.useFixture(fixtures.MockPatch(
'pypowervm.adapter.Session', autospec=True)).mock
self.pwron = self.useFixture(fixtures.MockPatch(
'nova.virt.powervm.vm.power_on')).mock
self.pwroff = self.useFixture(fixtures.MockPatch(
'nova.virt.powervm.vm.power_off')).mock
# Create an instance to test with
self.inst = powervm.TEST_INSTANCE
def test_driver_capabilities(self):
"""Test the driver capabilities."""
# check that the driver reports all capabilities
self.assertEqual(set(ComputeDriver.capabilities),
set(self.drv.capabilities))
# check the values for each capability
self.assertFalse(self.drv.capabilities['has_imagecache'])
self.assertFalse(self.drv.capabilities['supports_evacuate'])
self.assertFalse(
self.drv.capabilities['supports_migrate_to_same_host'])
self.assertTrue(self.drv.capabilities['supports_attach_interface'])
self.assertFalse(self.drv.capabilities['supports_device_tagging'])
self.assertFalse(
self.drv.capabilities['supports_tagged_attach_interface'])
self.assertFalse(
self.drv.capabilities['supports_tagged_attach_volume'])
self.assertTrue(self.drv.capabilities['supports_extend_volume'])
self.assertFalse(self.drv.capabilities['supports_multiattach'])
@mock.patch('nova.image.glance.API')
@mock.patch('pypowervm.tasks.storage.ComprehensiveScrub', autospec=True)
@mock.patch('oslo_utils.importutils.import_object_ns', autospec=True)
@mock.patch('pypowervm.wrappers.managed_system.System', autospec=True)
@mock.patch('pypowervm.tasks.partition.validate_vios_ready', autospec=True)
def test_init_host(self, mock_vvr, mock_sys, mock_import, mock_scrub,
mock_img):
mock_hostw = mock.Mock(uuid='uuid')
mock_sys.get.return_value = [mock_hostw]
self.drv.init_host('host')
self.sess.assert_called_once_with(conn_tries=60)
self.adp.assert_called_once_with(
self.sess.return_value, helpers=[
pvm_hlp_log.log_helper, pvm_hlp_vbusy.vios_busy_retry_helper])
mock_vvr.assert_called_once_with(self.drv.adapter)
mock_sys.get.assert_called_once_with(self.drv.adapter)
self.assertEqual(mock_hostw, self.drv.host_wrapper)
mock_scrub.assert_called_once_with(self.drv.adapter)
mock_scrub.return_value.execute.assert_called_once_with()
mock_import.assert_called_once_with(
'nova.virt.powervm.disk', 'localdisk.LocalStorage',
self.drv.adapter, 'uuid')
self.assertEqual(mock_import.return_value, self.drv.disk_dvr)
mock_img.assert_called_once_with()
self.assertEqual(mock_img.return_value, self.drv.image_api)
@mock.patch('nova.virt.powervm.vm.get_pvm_uuid')
@mock.patch('nova.virt.powervm.vm.get_vm_qp')
@mock.patch('nova.virt.powervm.vm._translate_vm_state')
def test_get_info(self, mock_tx_state, mock_qp, mock_uuid):
mock_tx_state.return_value = 'fake-state'
self.assertEqual(hardware.InstanceInfo('fake-state'),
self.drv.get_info('inst'))
mock_uuid.assert_called_once_with('inst')
mock_qp.assert_called_once_with(
self.drv.adapter, mock_uuid.return_value, 'PartitionState')
mock_tx_state.assert_called_once_with(mock_qp.return_value)
@mock.patch('nova.virt.powervm.vm.get_lpar_names')
def test_list_instances(self, mock_names):
mock_names.return_value = ['one', 'two', 'three']
self.assertEqual(['one', 'two', 'three'], self.drv.list_instances())
mock_names.assert_called_once_with(self.adp)
def test_get_available_nodes(self):
self.flags(host='hostname')
self.assertEqual(['hostname'], self.drv.get_available_nodes('node'))
@mock.patch('pypowervm.wrappers.managed_system.System', autospec=True)
@mock.patch('nova.virt.powervm.host.build_host_resource_from_ms')
def test_get_available_resource(self, mock_bhrfm, mock_sys):
mock_sys.get.return_value = ['sys']
mock_bhrfm.return_value = {'foo': 'bar'}
self.drv.disk_dvr = mock.create_autospec(ssp.SSPDiskAdapter,
instance=True)
self.assertEqual(
{'foo': 'bar', 'local_gb': self.drv.disk_dvr.capacity,
'local_gb_used': self.drv.disk_dvr.capacity_used},
self.drv.get_available_resource('node'))
mock_sys.get.assert_called_once_with(self.adp)
mock_bhrfm.assert_called_once_with('sys')
self.assertEqual('sys', self.drv.host_wrapper)
@contextlib.contextmanager
def _update_provider_tree(self, allocations=None):
"""Host resource dict gets converted properly to provider tree inv."""
with mock.patch('nova.virt.powervm.host.'
'build_host_resource_from_ms') as mock_bhrfm:
mock_bhrfm.return_value = {
'vcpus': 8,
'memory_mb': 2048,
}
self.drv.host_wrapper = 'host_wrapper'
# Validate that this gets converted to int with floor
self.drv.disk_dvr = mock.Mock(capacity=2091.8)
exp_inv = {
'VCPU': {
'total': 8,
'max_unit': 8,
'allocation_ratio': 16.0,
'reserved': 0,
},
'MEMORY_MB': {
'total': 2048,
'max_unit': 2048,
'allocation_ratio': 1.5,
'reserved': 512,
},
'DISK_GB': {
'total': 2091,
'max_unit': 2091,
'allocation_ratio': 1.0,
'reserved': 0,
},
}
ptree = provider_tree.ProviderTree()
ptree.new_root('compute_host', uuids.cn)
# Let the caller muck with these
yield ptree, exp_inv
self.drv.update_provider_tree(ptree, 'compute_host',
allocations=allocations)
self.assertEqual(exp_inv, ptree.data('compute_host').inventory)
mock_bhrfm.assert_called_once_with('host_wrapper')
def test_update_provider_tree(self):
# Basic: no inventory already on the provider, no extra providers, no
# aggregates or traits.
with self._update_provider_tree():
pass
def test_update_provider_tree_ignore_allocations(self):
with self._update_provider_tree(allocations="This is ignored"):
pass
def test_update_provider_tree_conf_overrides(self):
# Non-default CONF values for allocation ratios and reserved.
self.flags(cpu_allocation_ratio=12.3,
reserved_host_cpus=4,
ram_allocation_ratio=4.5,
reserved_host_memory_mb=32,
disk_allocation_ratio=6.7,
# This gets int(ceil)'d
reserved_host_disk_mb=5432.1)
with self._update_provider_tree() as (_, exp_inv):
exp_inv['VCPU']['allocation_ratio'] = 12.3
exp_inv['VCPU']['reserved'] = 4
exp_inv['MEMORY_MB']['allocation_ratio'] = 4.5
exp_inv['MEMORY_MB']['reserved'] = 32
exp_inv['DISK_GB']['allocation_ratio'] = 6.7
exp_inv['DISK_GB']['reserved'] = 6
def test_update_provider_tree_complex_ptree(self):
# Overrides inventory already on the provider; leaves other providers
# and aggregates/traits alone.
with self._update_provider_tree() as (ptree, exp_inv):
ptree.update_inventory('compute_host', {
# these should get blown away
'VCPU': {
'total': 16,
'max_unit': 2,
'allocation_ratio': 1.0,
'reserved': 10,
},
'CUSTOM_BOGUS': {
'total': 1234,
}
})
ptree.update_aggregates('compute_host',
[uuids.ss_agg, uuids.other_agg])
ptree.update_traits('compute_host', ['CUSTOM_FOO', 'CUSTOM_BAR'])
ptree.new_root('ssp', uuids.ssp)
ptree.update_inventory('ssp', {'sentinel': 'inventory',
'for': 'ssp'})
ptree.update_aggregates('ssp', [uuids.ss_agg])
ptree.new_child('sriov', 'compute_host', uuid=uuids.sriov)
# Since CONF.cpu_allocation_ratio is not set and this is not
# the initial upt call (so CONF.initial_cpu_allocation_ratio would
# be used), the existing allocation ratio value from the tree is
# used.
exp_inv['VCPU']['allocation_ratio'] = 1.0
# Make sure the compute's agg and traits were left alone
cndata = ptree.data('compute_host')
self.assertEqual(set([uuids.ss_agg, uuids.other_agg]),
cndata.aggregates)
self.assertEqual(set(['CUSTOM_FOO', 'CUSTOM_BAR']), cndata.traits)
# And the other providers were left alone
self.assertEqual(set([uuids.cn, uuids.ssp, uuids.sriov]),
set(ptree.get_provider_uuids()))
# ...including the ssp's aggregates
self.assertEqual(set([uuids.ss_agg]), ptree.data('ssp').aggregates)
@mock.patch('nova.virt.powervm.tasks.storage.AttachVolume.execute')
@mock.patch('nova.virt.powervm.tasks.network.PlugMgmtVif.execute')
@mock.patch('nova.virt.powervm.tasks.network.PlugVifs.execute')
@mock.patch('nova.virt.powervm.media.ConfigDrivePowerVM')
@mock.patch('nova.virt.configdrive.required_by')
@mock.patch('nova.virt.powervm.vm.create_lpar')
@mock.patch('pypowervm.tasks.partition.build_active_vio_feed_task',
autospec=True)
@mock.patch('pypowervm.tasks.storage.add_lpar_storage_scrub_tasks',
autospec=True)
def test_spawn_ops(self, mock_scrub, mock_bldftsk, mock_crt_lpar,
mock_cdrb, mock_cfg_drv, mock_plug_vifs,
mock_plug_mgmt_vif, mock_attach_vol):
"""Validates the 'typical' spawn flow of the spawn of an instance. """
mock_cdrb.return_value = True
self.drv.host_wrapper = mock.Mock()
self.drv.disk_dvr = mock.create_autospec(ssp.SSPDiskAdapter,
instance=True)
mock_ftsk = pvm_tx.FeedTask('fake', [mock.Mock(spec=pvm_vios.VIOS)])
mock_bldftsk.return_value = mock_ftsk
block_device_info = self._fake_bdms()
self.drv.spawn('context', self.inst, 'img_meta', 'files', 'password',
'allocs', network_info='netinfo',
block_device_info=block_device_info)
mock_crt_lpar.assert_called_once_with(
self.adp, self.drv.host_wrapper, self.inst)
mock_bldftsk.assert_called_once_with(
self.adp, xag={pvm_const.XAG.VIO_SMAP, pvm_const.XAG.VIO_FMAP})
self.assertTrue(mock_plug_vifs.called)
self.assertTrue(mock_plug_mgmt_vif.called)
mock_scrub.assert_called_once_with(
[mock_crt_lpar.return_value.id], mock_ftsk, lpars_exist=True)
self.drv.disk_dvr.create_disk_from_image.assert_called_once_with(
'context', self.inst, 'img_meta')
self.drv.disk_dvr.attach_disk.assert_called_once_with(
self.inst, self.drv.disk_dvr.create_disk_from_image.return_value,
mock_ftsk)
self.assertEqual(2, mock_attach_vol.call_count)
mock_cfg_drv.assert_called_once_with(self.adp)
mock_cfg_drv.return_value.create_cfg_drv_vopt.assert_called_once_with(
self.inst, 'files', 'netinfo', mock_ftsk, admin_pass='password',
mgmt_cna=mock.ANY)
self.pwron.assert_called_once_with(self.adp, self.inst)
mock_cfg_drv.reset_mock()
mock_attach_vol.reset_mock()
# No config drive, no bdms
mock_cdrb.return_value = False
self.drv.spawn('context', self.inst, 'img_meta', 'files', 'password',
'allocs')
mock_cfg_drv.assert_not_called()
mock_attach_vol.assert_not_called()
@mock.patch('nova.virt.powervm.tasks.storage.DetachVolume.execute')
@mock.patch('nova.virt.powervm.tasks.network.UnplugVifs.execute')
@mock.patch('nova.virt.powervm.vm.delete_lpar')
@mock.patch('nova.virt.powervm.media.ConfigDrivePowerVM')
@mock.patch('nova.virt.configdrive.required_by')
@mock.patch('pypowervm.tasks.partition.build_active_vio_feed_task',
autospec=True)
def test_destroy(self, mock_bldftsk, mock_cdrb, mock_cfgdrv,
mock_dlt_lpar, mock_unplug, mock_detach_vol):
"""Validates PowerVM destroy."""
self.drv.host_wrapper = mock.Mock()
self.drv.disk_dvr = mock.create_autospec(ssp.SSPDiskAdapter,
instance=True)
mock_ftsk = pvm_tx.FeedTask('fake', [mock.Mock(spec=pvm_vios.VIOS)])
mock_bldftsk.return_value = mock_ftsk
block_device_info = self._fake_bdms()
# Good path, with config drive, destroy disks
mock_cdrb.return_value = True
self.drv.destroy('context', self.inst, [],
block_device_info=block_device_info)
self.pwroff.assert_called_once_with(
self.adp, self.inst, force_immediate=True)
mock_bldftsk.assert_called_once_with(
self.adp, xag=[pvm_const.XAG.VIO_SMAP])
mock_unplug.assert_called_once()
mock_cdrb.assert_called_once_with(self.inst)
mock_cfgdrv.assert_called_once_with(self.adp)
mock_cfgdrv.return_value.dlt_vopt.assert_called_once_with(
self.inst, stg_ftsk=mock_bldftsk.return_value)
self.assertEqual(2, mock_detach_vol.call_count)
self.drv.disk_dvr.detach_disk.assert_called_once_with(
self.inst)
self.drv.disk_dvr.delete_disks.assert_called_once_with(
self.drv.disk_dvr.detach_disk.return_value)
mock_dlt_lpar.assert_called_once_with(self.adp, self.inst)
self.pwroff.reset_mock()
mock_bldftsk.reset_mock()
mock_unplug.reset_mock()
mock_cdrb.reset_mock()
mock_cfgdrv.reset_mock()
self.drv.disk_dvr.detach_disk.reset_mock()
self.drv.disk_dvr.delete_disks.reset_mock()
mock_detach_vol.reset_mock()
mock_dlt_lpar.reset_mock()
# No config drive, preserve disks, no block device info
mock_cdrb.return_value = False
self.drv.destroy('context', self.inst, [], block_device_info={},
destroy_disks=False)
mock_cfgdrv.return_value.dlt_vopt.assert_not_called()
mock_detach_vol.assert_not_called()
self.drv.disk_dvr.delete_disks.assert_not_called()
# Non-forced power_off, since preserving disks
self.pwroff.assert_called_once_with(
self.adp, self.inst, force_immediate=False)
mock_bldftsk.assert_called_once_with(
self.adp, xag=[pvm_const.XAG.VIO_SMAP])
mock_unplug.assert_called_once()
mock_cdrb.assert_called_once_with(self.inst)
mock_cfgdrv.assert_not_called()
mock_cfgdrv.return_value.dlt_vopt.assert_not_called()
self.drv.disk_dvr.detach_disk.assert_called_once_with(
self.inst)
self.drv.disk_dvr.delete_disks.assert_not_called()
mock_dlt_lpar.assert_called_once_with(self.adp, self.inst)
self.pwroff.reset_mock()
mock_bldftsk.reset_mock()
mock_unplug.reset_mock()
mock_cdrb.reset_mock()
mock_cfgdrv.reset_mock()
self.drv.disk_dvr.detach_disk.reset_mock()
self.drv.disk_dvr.delete_disks.reset_mock()
mock_dlt_lpar.reset_mock()
# InstanceNotFound exception, non-forced
self.pwroff.side_effect = exception.InstanceNotFound(
instance_id='something')
self.drv.destroy('context', self.inst, [], block_device_info={},
destroy_disks=False)
self.pwroff.assert_called_once_with(
self.adp, self.inst, force_immediate=False)
self.drv.disk_dvr.detach_disk.assert_not_called()
mock_unplug.assert_not_called()
self.drv.disk_dvr.delete_disks.assert_not_called()
mock_dlt_lpar.assert_not_called()
self.pwroff.reset_mock()
self.pwroff.side_effect = None
mock_unplug.reset_mock()
# Convertible (PowerVM) exception
mock_dlt_lpar.side_effect = pvm_exc.TimeoutError("Timed out")
self.assertRaises(exception.InstanceTerminationFailure,
self.drv.destroy, 'context', self.inst, [],
block_device_info={})
# Everything got called
self.pwroff.assert_called_once_with(
self.adp, self.inst, force_immediate=True)
mock_unplug.assert_called_once()
self.drv.disk_dvr.detach_disk.assert_called_once_with(self.inst)
self.drv.disk_dvr.delete_disks.assert_called_once_with(
self.drv.disk_dvr.detach_disk.return_value)
mock_dlt_lpar.assert_called_once_with(self.adp, self.inst)
# Other random exception raises directly
mock_dlt_lpar.side_effect = ValueError()
self.assertRaises(ValueError,
self.drv.destroy, 'context', self.inst, [],
block_device_info={})
@mock.patch('nova.virt.powervm.tasks.image.UpdateTaskState.'
'execute', autospec=True)
@mock.patch('nova.virt.powervm.tasks.storage.InstanceDiskToMgmt.'
'execute', autospec=True)
@mock.patch('nova.virt.powervm.tasks.image.StreamToGlance.execute')
@mock.patch('nova.virt.powervm.tasks.storage.RemoveInstanceDiskFromMgmt.'
'execute')
def test_snapshot(self, mock_rm, mock_stream, mock_conn, mock_update):
self.drv.disk_dvr = mock.Mock()
self.drv.image_api = mock.Mock()
mock_conn.return_value = 'stg_elem', 'vios_wrap', 'disk_path'
self.drv.snapshot('context', self.inst, 'image_id',
'update_task_state')
self.assertEqual(2, mock_update.call_count)
self.assertEqual(1, mock_conn.call_count)
mock_stream.assert_called_once_with(disk_path='disk_path')
mock_rm.assert_called_once_with(
stg_elem='stg_elem', vios_wrap='vios_wrap', disk_path='disk_path')
self.drv.disk_dvr.capabilities = {'snapshot': False}
self.assertRaises(exception.NotSupportedWithOption, self.drv.snapshot,
'context', self.inst, 'image_id', 'update_task_state')
def test_power_on(self):
self.drv.power_on('context', self.inst, 'network_info')
self.pwron.assert_called_once_with(self.adp, self.inst)
def test_power_off(self):
self.drv.power_off(self.inst)
self.pwroff.assert_called_once_with(
self.adp, self.inst, force_immediate=True, timeout=None)
def test_power_off_timeout(self):
# Long timeout (retry interval means nothing on powervm)
self.drv.power_off(self.inst, timeout=500, retry_interval=10)
self.pwroff.assert_called_once_with(
self.adp, self.inst, force_immediate=False, timeout=500)
@mock.patch('nova.virt.powervm.vm.reboot')
def test_reboot_soft(self, mock_reboot):
inst = mock.Mock()
self.drv.reboot('context', inst, 'network_info', 'SOFT')
mock_reboot.assert_called_once_with(self.adp, inst, False)
@mock.patch('nova.virt.powervm.vm.reboot')
def test_reboot_hard(self, mock_reboot):
inst = mock.Mock()
self.drv.reboot('context', inst, 'network_info', 'HARD')
mock_reboot.assert_called_once_with(self.adp, inst, True)
@mock.patch('nova.virt.powervm.driver.PowerVMDriver.plug_vifs')
def test_attach_interface(self, mock_plug_vifs):
self.drv.attach_interface('context', 'inst', 'image_meta', 'vif')
mock_plug_vifs.assert_called_once_with('inst', ['vif'])
@mock.patch('nova.virt.powervm.driver.PowerVMDriver.unplug_vifs')
def test_detach_interface(self, mock_unplug_vifs):
self.drv.detach_interface('context', 'inst', 'vif')
mock_unplug_vifs.assert_called_once_with('inst', ['vif'])
@mock.patch('nova.virt.powervm.tasks.vm.Get', autospec=True)
@mock.patch('nova.virt.powervm.tasks.base.run', autospec=True)
@mock.patch('nova.virt.powervm.tasks.network.PlugVifs', autospec=True)
@mock.patch('taskflow.patterns.linear_flow.Flow', autospec=True)
def test_plug_vifs(self, mock_tf, mock_plug_vifs, mock_tf_run, mock_get):
# Successful plug
mock_inst = mock.Mock()
self.drv.plug_vifs(mock_inst, 'net_info')
mock_get.assert_called_once_with(self.adp, mock_inst)
mock_plug_vifs.assert_called_once_with(
self.drv.virtapi, self.adp, mock_inst, 'net_info')
add_calls = [mock.call(mock_get.return_value),
mock.call(mock_plug_vifs.return_value)]
mock_tf.return_value.add.assert_has_calls(add_calls)
mock_tf_run.assert_called_once_with(
mock_tf.return_value, instance=mock_inst)
# InstanceNotFound and generic exception both raise
mock_tf_run.side_effect = exception.InstanceNotFound('id')
exc = self.assertRaises(exception.VirtualInterfacePlugException,
self.drv.plug_vifs, mock_inst, 'net_info')
self.assertIn('instance', six.text_type(exc))
mock_tf_run.side_effect = Exception
exc = self.assertRaises(exception.VirtualInterfacePlugException,
self.drv.plug_vifs, mock_inst, 'net_info')
self.assertIn('unexpected', six.text_type(exc))
@mock.patch('nova.virt.powervm.tasks.base.run', autospec=True)
@mock.patch('nova.virt.powervm.tasks.network.UnplugVifs', autospec=True)
@mock.patch('taskflow.patterns.linear_flow.Flow', autospec=True)
def test_unplug_vifs(self, mock_tf, mock_unplug_vifs, mock_tf_run):
# Successful unplug
mock_inst = mock.Mock()
self.drv.unplug_vifs(mock_inst, 'net_info')
mock_unplug_vifs.assert_called_once_with(self.adp, mock_inst,
'net_info')
mock_tf.return_value.add.assert_called_once_with(
mock_unplug_vifs.return_value)
mock_tf_run.assert_called_once_with(mock_tf.return_value,
instance=mock_inst)
# InstanceNotFound should pass
mock_tf_run.side_effect = exception.InstanceNotFound(instance_id='1')
self.drv.unplug_vifs(mock_inst, 'net_info')
# Raise InterfaceDetachFailed otherwise
mock_tf_run.side_effect = Exception
self.assertRaises(exception.InterfaceDetachFailed,
self.drv.unplug_vifs, mock_inst, 'net_info')
@mock.patch('pypowervm.tasks.vterm.open_remotable_vnc_vterm',
autospec=True)
@mock.patch('nova.virt.powervm.vm.get_pvm_uuid',
new=mock.Mock(return_value='uuid'))
def test_get_vnc_console(self, mock_vterm):
# Success
mock_vterm.return_value = '10'
resp = self.drv.get_vnc_console(mock.ANY, self.inst)
self.assertEqual('127.0.0.1', resp.host)
self.assertEqual('10', resp.port)
self.assertEqual('uuid', resp.internal_access_path)
mock_vterm.assert_called_once_with(
mock.ANY, 'uuid', mock.ANY, vnc_path='uuid')
# VNC failure - exception is raised directly
mock_vterm.side_effect = pvm_exc.VNCBasedTerminalFailedToOpen(err='xx')
self.assertRaises(pvm_exc.VNCBasedTerminalFailedToOpen,
self.drv.get_vnc_console, mock.ANY, self.inst)
# 404
mock_vterm.side_effect = pvm_exc.HttpError(mock.Mock(status=404))
self.assertRaises(exception.InstanceNotFound, self.drv.get_vnc_console,
mock.ANY, self.inst)
@mock.patch('nova.virt.powervm.volume.fcvscsi.FCVscsiVolumeAdapter')
def test_attach_volume(self, mock_vscsi_adpt):
"""Validates the basic PowerVM attach volume."""
# BDMs
mock_bdm = self._fake_bdms()['block_device_mapping'][0]
with mock.patch.object(self.inst, 'save') as mock_save:
# Invoke the method.
self.drv.attach_volume('context', mock_bdm.get('connection_info'),
self.inst, mock.sentinel.stg_ftsk)
# Verify the connect volume was invoked
mock_vscsi_adpt.return_value.attach_volume.assert_called_once_with()
mock_save.assert_called_once_with()
@mock.patch('nova.virt.powervm.volume.fcvscsi.FCVscsiVolumeAdapter')
def test_detach_volume(self, mock_vscsi_adpt):
"""Validates the basic PowerVM detach volume."""
# BDMs
mock_bdm = self._fake_bdms()['block_device_mapping'][0]
# Invoke the method, good path test.
self.drv.detach_volume('context', mock_bdm.get('connection_info'),
self.inst, mock.sentinel.stg_ftsk)
# Verify the disconnect volume was invoked
mock_vscsi_adpt.return_value.detach_volume.assert_called_once_with()
@mock.patch('nova.virt.powervm.volume.fcvscsi.FCVscsiVolumeAdapter')
def test_extend_volume(self, mock_vscsi_adpt):
mock_bdm = self._fake_bdms()['block_device_mapping'][0]
self.drv.extend_volume(
'context', mock_bdm.get('connection_info'), self.inst, 0)
mock_vscsi_adpt.return_value.extend_volume.assert_called_once_with()
def test_vol_drv_iter(self):
block_device_info = self._fake_bdms()
bdms = nova_driver.block_device_info_get_mapping(block_device_info)
vol_adpt = mock.Mock()
def _get_results(bdms):
# Patch so we get the same mock back each time.
with mock.patch('nova.virt.powervm.volume.fcvscsi.'
'FCVscsiVolumeAdapter', return_value=vol_adpt):
return [
(bdm, vol_drv) for bdm, vol_drv in self.drv._vol_drv_iter(
'context', self.inst, bdms)]
results = _get_results(bdms)
self.assertEqual(
'fake_vol1',
results[0][0]['connection_info']['data']['volume_id'])
self.assertEqual(vol_adpt, results[0][1])
self.assertEqual(
'fake_vol2',
results[1][0]['connection_info']['data']['volume_id'])
self.assertEqual(vol_adpt, results[1][1])
# Test with empty bdms
self.assertEqual([], _get_results([]))
@staticmethod
def _fake_bdms():
def _fake_bdm(volume_id, target_lun):
connection_info = {'driver_volume_type': 'fibre_channel',
'data': {'volume_id': volume_id,
'target_lun': target_lun,
'initiator_target_map':
{'21000024F5': ['50050768']}}}
mapping_dict = {'source_type': 'volume', 'volume_id': volume_id,
'destination_type': 'volume',
'connection_info':
jsonutils.dumps(connection_info),
}
bdm_dict = nova_block_device.BlockDeviceDict(mapping_dict)
bdm_obj = bdmobj.BlockDeviceMapping(**bdm_dict)
return nova_virt_bdm.DriverVolumeBlockDevice(bdm_obj)
bdm_list = [_fake_bdm('fake_vol1', 0), _fake_bdm('fake_vol2', 1)]
block_device_info = {'block_device_mapping': bdm_list}
return block_device_info
@mock.patch('nova.virt.powervm.volume.fcvscsi.wwpns', autospec=True)
def test_get_volume_connector(self, mock_wwpns):
vol_connector = self.drv.get_volume_connector(mock.Mock())
self.assertEqual(mock_wwpns.return_value, vol_connector['wwpns'])
self.assertFalse(vol_connector['multipath'])
self.assertEqual(vol_connector['host'], CONF.host)
self.assertIsNone(vol_connector['initiator'])