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

229 lines
8.8 KiB
Python

# Copyright 2015 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 eventlet
import mock
from nova import exception
from nova import objects
from nova import test
from pypowervm.tests import test_fixtures as pvm_fx
from nova_powervm.tests.virt import powervm
from nova_powervm.virt.powervm.tasks import network as tf_net
def cna(mac):
"""Builds a mock Client Network Adapter for unit tests."""
nic = mock.MagicMock()
nic.mac = mac
nic.vswitch_uri = 'fake_href'
return nic
class TestNetwork(test.TestCase):
def setUp(self):
super(TestNetwork, self).setUp()
self.apt = self.useFixture(pvm_fx.AdapterFx()).adpt
self.mock_lpar_wrap = mock.MagicMock()
self.mock_lpar_wrap.can_modify_io.return_value = True, None
@mock.patch('nova_powervm.virt.powervm.vm.get_cnas')
def test_unplug_vifs(self, mock_vm_get):
"""Tests that a delete of the vif can be done."""
inst = objects.Instance(**powervm.TEST_INSTANCE)
# Mock up the CNA response. One should already exist, the other
# should not.
cnas = [cna('AABBCCDDEEFF'), cna('AABBCCDDEE11'), cna('AABBCCDDEE22')]
mock_vm_get.return_value = cnas
# Mock up the network info. This also validates that they will be
# sanitized to upper case.
net_info = [
{'address': 'aa:bb:cc:dd:ee:ff'}, {'address': 'aa:bb:cc:dd:ee:22'},
{'address': 'aa:bb:cc:dd:ee:33'}
]
# Run method
p_vifs = tf_net.UnplugVifs(self.apt, inst, net_info, 'host_uuid')
p_vifs.execute(self.mock_lpar_wrap)
# The delete should have only been called once. The second CNA didn't
# have a matching mac...so it should be skipped.
self.assertEqual(1, cnas[0].delete.call_count)
self.assertEqual(0, cnas[1].delete.call_count)
self.assertEqual(1, cnas[2].delete.call_count)
def test_unplug_vifs_invalid_state(self):
"""Tests that the delete raises an exception if bad VM state."""
inst = objects.Instance(**powervm.TEST_INSTANCE)
# Mock that the state is incorrect
self.mock_lpar_wrap.can_modify_io.return_value = False, 'bad'
# Run method
p_vifs = tf_net.UnplugVifs(self.apt, inst, mock.Mock(), 'host_uuid')
self.assertRaises(tf_net.VirtualInterfaceUnplugException,
p_vifs.execute, self.mock_lpar_wrap)
@mock.patch('nova_powervm.virt.powervm.vm.crt_vif')
@mock.patch('nova_powervm.virt.powervm.vm.get_cnas')
def test_plug_vifs_rmc(self, mock_vm_get, mock_vm_crt):
"""Tests that a crt vif can be done with secure RMC."""
inst = objects.Instance(**powervm.TEST_INSTANCE)
# Mock up the CNA response. One should already exist, the other
# should not.
mock_vm_get.return_value = [cna('AABBCCDDEEFF'), cna('AABBCCDDEE11')]
# Mock up the network info. This also validates that they will be
# sanitized to upper case.
net_info = [
{'address': 'aa:bb:cc:dd:ee:ff'}, {'address': 'aa:bb:cc:dd:ee:22'},
{'address': 'aa:bb:cc:dd:ee:33'}
]
# Run method
p_vifs = tf_net.PlugVifs(mock.MagicMock(), self.apt, inst, net_info,
'host_uuid')
p_vifs.execute(self.mock_lpar_wrap)
# The create should have only been called once.
self.assertEqual(2, mock_vm_crt.call_count)
@mock.patch('nova_powervm.virt.powervm.vm.crt_vif')
@mock.patch('nova_powervm.virt.powervm.vm.get_cnas')
def test_plug_vifs_rmc_no_create(self, mock_vm_get, mock_vm_crt):
"""Verifies if no creates are needed, none are done."""
inst = objects.Instance(**powervm.TEST_INSTANCE)
# Mock up the CNA response. Both should already exist.
mock_vm_get.return_value = [cna('AABBCCDDEEFF'), cna('AABBCCDDEE11')]
# Mock up the network info. This also validates that they will be
# sanitized to upper case.
net_info = [
{'address': 'aa:bb:cc:dd:ee:ff'}, {'address': 'aa:bb:cc:dd:ee:11'}
]
# Run method
p_vifs = tf_net.PlugVifs(mock.MagicMock(), self.apt, inst, net_info,
'host_uuid')
resp = p_vifs.execute(self.mock_lpar_wrap)
# The create should not have been called. The response should have
# been empty.
self.assertEqual(0, mock_vm_crt.call_count)
self.assertEqual([], resp)
# State check shouldn't have even been invoked as no creates were
# required
self.assertEqual(0, self.mock_lpar_wrap.can_modify_io.call_count)
@mock.patch('nova_powervm.virt.powervm.vm.crt_vif')
@mock.patch('nova_powervm.virt.powervm.vm.get_cnas')
def test_plug_vifs_invalid_state(self, mock_vm_get, mock_vm_crt):
"""Tests that a crt_vif fails when the LPAR state is bad."""
inst = objects.Instance(**powervm.TEST_INSTANCE)
# Mock up the CNA response. Only doing one for simplicity
mock_vm_get.return_value = []
net_info = [{'address': 'aa:bb:cc:dd:ee:ff'}]
# Mock that the state is incorrect
self.mock_lpar_wrap.can_modify_io.return_value = False, 'bad'
# Run method
p_vifs = tf_net.PlugVifs(mock.MagicMock(), self.apt, inst, net_info,
'host_uuid')
self.assertRaises(exception.VirtualInterfaceCreateException,
p_vifs.execute, self.mock_lpar_wrap)
# The create should not have been invoked
self.assertEqual(0, mock_vm_crt.call_count)
@mock.patch('nova_powervm.virt.powervm.vm.crt_vif')
@mock.patch('nova_powervm.virt.powervm.vm.get_cnas')
def test_plug_vifs_timeout(self, mock_vm_get, mock_vm_crt):
"""Tests that crt vif failure via loss of neutron callback."""
inst = objects.Instance(**powervm.TEST_INSTANCE)
# Mock up the CNA response. Only doing one for simplicity
mock_vm_get.return_value = [cna('AABBCCDDEE11')]
# Mock up the network info.
net_info = [{'address': 'aa:bb:cc:dd:ee:ff'}]
# Ensure that an exception is raised by a timeout.
mock_vm_crt.side_effect = eventlet.timeout.Timeout()
# Run method
p_vifs = tf_net.PlugVifs(mock.MagicMock(), self.apt, inst, net_info,
'host_uuid')
self.assertRaises(exception.VirtualInterfaceCreateException,
p_vifs.execute, self.mock_lpar_wrap)
# The create should have only been called once.
self.assertEqual(1, mock_vm_crt.call_count)
@mock.patch('nova_powervm.virt.powervm.vm.crt_secure_rmc_vif')
@mock.patch('nova_powervm.virt.powervm.vm.get_secure_rmc_vswitch')
@mock.patch('nova_powervm.virt.powervm.vm.crt_vif')
@mock.patch('nova_powervm.virt.powervm.vm.get_cnas')
def test_plug_mgmt_vif(self, mock_vm_get, mock_vm_crt,
mock_get_rmc_vswitch, mock_crt_rmc_vif):
"""Tests that a mgmt vif can be created."""
inst = objects.Instance(**powervm.TEST_INSTANCE)
# Mock up the rmc vswitch
vswitch_w = mock.MagicMock()
vswitch_w.href = 'fake_mgmt_uri'
mock_get_rmc_vswitch.return_value = vswitch_w
# Run method
p_vifs = tf_net.PlugMgmtVif(self.apt, inst, 'host_uuid')
p_vifs.execute([])
# The create should have only been called once.
self.assertEqual(1, mock_crt_rmc_vif.call_count)
@mock.patch('nova.utils.is_neutron')
def test_get_vif_events(self, mock_is_neutron):
# Set up common mocks.
inst = objects.Instance(**powervm.TEST_INSTANCE)
net_info = [mock.MagicMock(), mock.MagicMock()]
net_info[0]['id'] = 'a'
net_info[0].get.return_value = False
net_info[1]['id'] = 'b'
net_info[1].get.return_value = True
# Set up the runner.
p_vifs = tf_net.PlugVifs(mock.MagicMock(), self.apt, inst, net_info,
'host_uuid')
# Mock that neutron is off.
mock_is_neutron.return_value = False
self.assertEqual([], p_vifs._get_vif_events())
# Turn neutron on.
mock_is_neutron.return_value = True
resp = p_vifs._get_vif_events()
# Only one should be returned since only one was active.
self.assertEqual(1, len(resp))