nova-powervm/nova_powervm/tests/virt/powervm/tasks/test_vm.py

268 lines
12 KiB
Python

# Copyright 2015, 2018 IBM Corp.
#
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import mock
from nova.compute import task_states
from nova import exception
from nova import test
from nova_powervm.virt.powervm.tasks import vm as tf_vm
from pypowervm import const as pvmc
from taskflow import engines as tf_eng
from taskflow.patterns import linear_flow as tf_lf
from taskflow import task as tf_tsk
class TestVMTasks(test.NoDBTestCase):
def setUp(self):
super(TestVMTasks, self).setUp()
self.apt = mock.Mock()
self.instance = mock.Mock(uuid='fake-uuid')
@mock.patch('nova_powervm.virt.powervm.vm.get_instance_wrapper',
autospec=True)
def test_get(self, mock_inst_wrap):
get = tf_vm.Get(self.apt, 'host_uuid', self.instance)
get.execute()
mock_inst_wrap.assert_called_once_with(self.apt, self.instance)
# Validate args on taskflow.task.Task instantiation
with mock.patch('taskflow.task.Task.__init__') as tf:
tf_vm.Get(self.apt, 'host_uuid', self.instance)
tf.assert_called_once_with(name='get_vm', provides='lpar_wrap')
@mock.patch('pypowervm.utils.transaction.FeedTask', autospec=True)
@mock.patch('pypowervm.tasks.partition.build_active_vio_feed_task',
autospec=True)
@mock.patch('pypowervm.tasks.storage.add_lpar_storage_scrub_tasks',
autospec=True)
@mock.patch('nova_powervm.virt.powervm.vm.create_lpar', autospec=True)
def test_create(self, mock_vm_crt, mock_stg, mock_bld, mock_ftsk):
nvram_mgr = mock.Mock()
nvram_mgr.fetch.return_value = 'data'
mock_ftsk.name = 'vio_feed_task'
lpar_entry = mock.Mock()
# Test create with normal (non-recreate) ftsk
crt = tf_vm.Create(self.apt, 'host_wrapper', self.instance,
stg_ftsk=mock_ftsk, nvram_mgr=nvram_mgr,
slot_mgr='slot_mgr')
mock_vm_crt.return_value = lpar_entry
crt_entry = crt.execute()
mock_ftsk.execute.assert_not_called()
mock_vm_crt.assert_called_once_with(
self.apt, 'host_wrapper', self.instance, nvram='data',
slot_mgr='slot_mgr')
self.assertEqual(lpar_entry, crt_entry)
nvram_mgr.fetch.assert_called_once_with(self.instance)
mock_ftsk.name = 'create_scrubber'
mock_bld.return_value = mock_ftsk
# Test create with recreate ftsk
rcrt = tf_vm.Create(self.apt, 'host_wrapper', self.instance,
stg_ftsk=None, nvram_mgr=nvram_mgr,
slot_mgr='slot_mgr')
mock_bld.assert_called_once_with(
self.apt, name='create_scrubber',
xag={pvmc.XAG.VIO_SMAP, pvmc.XAG.VIO_FMAP})
rcrt.execute()
mock_ftsk.execute.assert_called_once_with()
# Validate args on taskflow.task.Task instantiation
with mock.patch('taskflow.task.Task.__init__') as tf:
tf_vm.Create(self.apt, 'host_wrapper', self.instance)
tf.assert_called_once_with(name='crt_vm', provides='lpar_wrap')
@mock.patch('nova_powervm.virt.powervm.vm.get_pvm_uuid', autospec=True)
@mock.patch('nova_powervm.virt.powervm.tasks.vm.Create.execute',
autospec=True)
@mock.patch('nova_powervm.virt.powervm.vm.delete_lpar', autospec=True)
def test_create_revert(self, mock_vm_dlt, mock_crt_exc,
mock_get_pvm_uuid):
mock_crt_exc.side_effect = exception.NovaException()
crt = tf_vm.Create(self.apt, 'host_wrapper', self.instance, 'stg_ftsk',
None)
# Assert that a failure while building does not revert
crt.instance.task_state = task_states.SPAWNING
flow_test = tf_lf.Flow("test_revert")
flow_test.add(crt)
self.assertRaises(exception.NovaException, tf_eng.run, flow_test)
self.assertEqual(0, mock_vm_dlt.call_count)
# Assert that a failure when rebuild results in revert
crt.instance.task_state = task_states.REBUILD_SPAWNING
flow_test = tf_lf.Flow("test_revert")
flow_test.add(crt)
self.assertRaises(exception.NovaException, tf_eng.run, flow_test)
self.assertEqual(1, mock_vm_dlt.call_count)
@mock.patch('nova_powervm.virt.powervm.vm.power_on', autospec=True)
def test_power_on(self, mock_pwron):
pwron = tf_vm.PowerOn(self.apt, self.instance, pwr_opts='opt')
pwron.execute()
mock_pwron.assert_called_once_with(self.apt, self.instance, opts='opt')
# Validate args on taskflow.task.Task instantiation
with mock.patch('taskflow.task.Task.__init__') as tf:
tf_vm.PowerOn(self.apt, self.instance)
tf.assert_called_once_with(name='pwr_vm')
@mock.patch('nova_powervm.virt.powervm.vm.power_on', autospec=True)
@mock.patch('nova_powervm.virt.powervm.vm.power_off', autospec=True)
def test_power_on_revert(self, mock_pwroff, mock_pwron):
flow = tf_lf.Flow('revert_power_on')
pwron = tf_vm.PowerOn(self.apt, self.instance, pwr_opts='opt')
flow.add(pwron)
# Dummy Task that fails, triggering flow revert
def failure(*a, **k):
raise ValueError()
flow.add(tf_tsk.FunctorTask(failure))
# When PowerOn.execute doesn't fail, revert calls power_off
self.assertRaises(ValueError, tf_eng.run, flow)
mock_pwron.assert_called_once_with(self.apt, self.instance, opts='opt')
mock_pwroff.assert_called_once_with(self.apt, self.instance,
force_immediate=True)
mock_pwron.reset_mock()
mock_pwroff.reset_mock()
# When PowerOn.execute fails, revert doesn't call power_off
mock_pwron.side_effect = exception.NovaException()
self.assertRaises(exception.NovaException, tf_eng.run, flow)
mock_pwron.assert_called_once_with(self.apt, self.instance, opts='opt')
self.assertEqual(0, mock_pwroff.call_count)
@mock.patch('nova_powervm.virt.powervm.vm.power_off', autospec=True)
def test_power_off(self, mock_pwroff):
# Default force_immediate
pwroff = tf_vm.PowerOff(self.apt, self.instance)
pwroff.execute()
mock_pwroff.assert_called_once_with(self.apt, self.instance,
force_immediate=False)
mock_pwroff.reset_mock()
# Explicit force_immediate
pwroff = tf_vm.PowerOff(self.apt, self.instance, force_immediate=True)
pwroff.execute()
mock_pwroff.assert_called_once_with(self.apt, self.instance,
force_immediate=True)
# Validate args on taskflow.task.Task instantiation
with mock.patch('taskflow.task.Task.__init__') as tf:
tf_vm.PowerOff(self.apt, self.instance)
tf.assert_called_once_with(name='pwr_off_vm')
@mock.patch('nova_powervm.virt.powervm.vm.delete_lpar', autospec=True)
def test_delete(self, mock_dlt):
delete = tf_vm.Delete(self.apt, self.instance)
delete.execute()
mock_dlt.assert_called_once_with(self.apt, self.instance)
# Validate args on taskflow.task.Task instantiation
with mock.patch('taskflow.task.Task.__init__') as tf:
tf_vm.Delete(self.apt, self.instance)
tf.assert_called_once_with(name='dlt_vm')
@mock.patch('nova_powervm.virt.powervm.vm.update', autospec=True)
def test_resize(self, mock_vm_update):
resize = tf_vm.Resize(self.apt, 'host_wrapper', self.instance,
name='new_name')
mock_vm_update.return_value = 'resized_entry'
resized_entry = resize.execute()
mock_vm_update.assert_called_once_with(
self.apt, 'host_wrapper', self.instance, entry=None,
name='new_name')
self.assertEqual('resized_entry', resized_entry)
# Validate args on taskflow.task.Task instantiation
with mock.patch('taskflow.task.Task.__init__') as tf:
tf_vm.Resize(self.apt, 'host_wrapper', self.instance)
tf.assert_called_once_with(name='resize_vm', provides='lpar_wrap')
@mock.patch('nova_powervm.virt.powervm.vm.rename', autospec=True)
def test_rename(self, mock_vm_rename):
mock_vm_rename.return_value = 'new_entry'
rename = tf_vm.Rename(self.apt, self.instance, 'new_name')
new_entry = rename.execute()
mock_vm_rename.assert_called_once_with(
self.apt, self.instance, 'new_name')
self.assertEqual('new_entry', new_entry)
# Validate args on taskflow.task.Task instantiation
with mock.patch('taskflow.task.Task.__init__') as tf:
tf_vm.Rename(self.apt, self.instance, 'new_name')
tf.assert_called_once_with(
name='rename_vm_new_name', provides='lpar_wrap')
def test_store_nvram(self):
nvram_mgr = mock.Mock()
store_nvram = tf_vm.StoreNvram(nvram_mgr, self.instance,
immediate=True)
store_nvram.execute()
nvram_mgr.store.assert_called_once_with(self.instance,
immediate=True)
# No exception is raised if the NVRAM could not be stored.
nvram_mgr.reset_mock()
nvram_mgr.store.side_effect = ValueError('Not Available')
store_nvram.execute()
nvram_mgr.store.assert_called_once_with(self.instance,
immediate=True)
# Validate args on taskflow.task.Task instantiation
with mock.patch('taskflow.task.Task.__init__') as tf:
tf_vm.StoreNvram(nvram_mgr, self.instance)
tf.assert_called_once_with(name='store_nvram')
def test_delete_nvram(self):
nvram_mgr = mock.Mock()
delete_nvram = tf_vm.DeleteNvram(nvram_mgr, self.instance)
delete_nvram.execute()
nvram_mgr.remove.assert_called_once_with(self.instance)
# No exception is raised if the NVRAM could not be stored.
nvram_mgr.reset_mock()
nvram_mgr.remove.side_effect = ValueError('Not Available')
delete_nvram.execute()
nvram_mgr.remove.assert_called_once_with(self.instance)
# Validate args on taskflow.task.Task instantiation
with mock.patch('taskflow.task.Task.__init__') as tf:
tf_vm.DeleteNvram(nvram_mgr, self.instance)
tf.assert_called_once_with(name='delete_nvram')
@mock.patch('nova_powervm.virt.powervm.vm.update_ibmi_settings',
autospec=True)
def test_update_ibmi_settings(self, mock_update):
update = tf_vm.UpdateIBMiSettings(self.apt, self.instance, 'boot_type')
update.execute()
mock_update.assert_called_once_with(self.apt, self.instance,
'boot_type')
# Validate args on taskflow.task.Task instantiation
with mock.patch('taskflow.task.Task.__init__') as tf:
tf_vm.UpdateIBMiSettings(self.apt, self.instance, 'boot_type')
tf.assert_called_once_with(name='update_ibmi_settings')