OpenStack Networking (Neutron)
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neutron/neutron/tests/unit/agent/common/test_utils.py

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7.9 KiB

# Copyright 2015 Red Hat, Inc.
# 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 socket
import mock
from neutron.agent.common import utils
from neutron.agent.linux import interface
from neutron.conf.agent import common as config
from neutron.tests import base
from neutron.tests.unit import testlib_api
class TestLoadInterfaceDriver(base.BaseTestCase):
def setUp(self):
super(TestLoadInterfaceDriver, self).setUp()
self.conf = config.setup_conf()
config.register_interface_opts(self.conf)
config.register_interface_driver_opts_helper(self.conf)
def test_load_interface_driver_not_set(self):
with testlib_api.ExpectedException(SystemExit):
utils.load_interface_driver(self.conf)
def test_load_interface_driver_wrong_driver(self):
self.conf.set_override('interface_driver', 'neutron.NonExistentDriver')
with testlib_api.ExpectedException(SystemExit):
utils.load_interface_driver(self.conf)
def test_load_interface_driver_does_not_consume_irrelevant_errors(self):
self.conf.set_override('interface_driver',
'neutron.agent.linux.interface.NullDriver')
with mock.patch('oslo_utils.importutils.import_class',
side_effect=RuntimeError()):
with testlib_api.ExpectedException(RuntimeError):
utils.load_interface_driver(self.conf)
def test_load_interface_driver_success(self):
self.conf.set_override('interface_driver',
'neutron.agent.linux.interface.NullDriver')
self.assertIsInstance(utils.load_interface_driver(self.conf),
interface.NullDriver)
def test_load_null_interface_driver_success(self):
self.conf.set_override('interface_driver',
'null')
self.assertIsInstance(utils.load_interface_driver(self.conf),
interface.NullDriver)
def test_load_linuxbridge_interface_driver_success(self):
self.conf.set_override('interface_driver',
'linuxbridge')
self.assertIsInstance(utils.load_interface_driver(self.conf),
interface.BridgeInterfaceDriver)
def test_load_ovs_interface_driver_success(self):
self.conf.set_override('interface_driver',
'openvswitch')
self.assertIsInstance(utils.load_interface_driver(self.conf),
interface.OVSInterfaceDriver)
def test_load_interface_driver_as_alias_wrong_driver(self):
self.conf.set_override('interface_driver', 'openvswitchXX')
with testlib_api.ExpectedException(SystemExit):
utils.load_interface_driver(self.conf)
class TestGetHypervisorHostname(base.BaseTestCase):
@mock.patch('socket.getaddrinfo')
@mock.patch('socket.gethostname')
def test_get_hypervisor_hostname_gethostname_fqdn(self, hostname_mock,
addrinfo_mock):
hostname_mock.return_value = 'host.domain'
self.assertEqual(
'host.domain',
utils.get_hypervisor_hostname())
addrinfo_mock.assert_not_called()
@mock.patch('socket.getaddrinfo')
@mock.patch('socket.gethostname')
def test_get_hypervisor_hostname_gethostname_localhost(self, hostname_mock,
addrinfo_mock):
hostname_mock.return_value = 'localhost'
self.assertEqual(
'localhost',
utils.get_hypervisor_hostname())
addrinfo_mock.assert_not_called()
@mock.patch('socket.getaddrinfo')
@mock.patch('socket.gethostname')
def test_get_hypervisor_hostname_getaddrinfo(self, hostname_mock,
addrinfo_mock):
hostname_mock.return_value = 'host'
addrinfo_mock.return_value = [(None, None, None, 'host.domain', None)]
self.assertEqual(
'host.domain',
utils.get_hypervisor_hostname())
addrinfo_mock.assert_called_once_with(
host='host', port=None, family=socket.AF_UNSPEC,
flags=socket.AI_CANONNAME)
@mock.patch('socket.getaddrinfo')
@mock.patch('socket.gethostname')
def test_get_hypervisor_hostname_getaddrinfo_no_canonname(self,
hostname_mock,
addrinfo_mock):
hostname_mock.return_value = 'host'
addrinfo_mock.return_value = [(None, None, None, '', None)]
self.assertEqual(
'host',
utils.get_hypervisor_hostname())
addrinfo_mock.assert_called_once_with(
host='host', port=None, family=socket.AF_UNSPEC,
flags=socket.AI_CANONNAME)
@mock.patch('socket.getaddrinfo')
@mock.patch('socket.gethostname')
def test_get_hypervisor_hostname_getaddrinfo_localhost(self, hostname_mock,
addrinfo_mock):
hostname_mock.return_value = 'host'
addrinfo_mock.return_value = [(None, None, None,
'localhost', None)]
self.assertEqual(
'host',
utils.get_hypervisor_hostname())
addrinfo_mock.assert_called_once_with(
host='host', port=None, family=socket.AF_UNSPEC,
flags=socket.AI_CANONNAME)
@mock.patch('socket.getaddrinfo')
@mock.patch('socket.gethostname')
def test_get_hypervisor_hostname_getaddrinfo_fail(self, hostname_mock,
addrinfo_mock):
hostname_mock.return_value = 'host'
addrinfo_mock.side_effect = OSError
self.assertEqual(
'host',
utils.get_hypervisor_hostname())
addrinfo_mock.assert_called_once_with(
host='host', port=None, family=socket.AF_UNSPEC,
flags=socket.AI_CANONNAME)
# TODO(bence romsics): rehome this to neutron_lib
class TestDefaultRpHypervisors(base.BaseTestCase):
@mock.patch.object(utils, 'get_hypervisor_hostname',
return_value='thishost')
def test_defaults(self, hostname_mock):
self.assertEqual(
{'eth0': 'thishost', 'eth1': 'thishost'},
utils.default_rp_hypervisors(
hypervisors={},
device_mappings={'physnet0': ['eth0', 'eth1']},
default_hypervisor=None,
)
)
self.assertEqual(
{'eth0': 'thathost', 'eth1': 'thishost'},
utils.default_rp_hypervisors(
hypervisors={'eth0': 'thathost'},
device_mappings={'physnet0': ['eth0', 'eth1']},
default_hypervisor=None,
)
)
self.assertEqual(
{'eth0': 'defaulthost', 'eth1': 'defaulthost'},
utils.default_rp_hypervisors(
hypervisors={},
device_mappings={'physnet0': ['eth0', 'eth1']},
default_hypervisor='defaulthost',
)
)
self.assertEqual(
{'eth0': 'thathost', 'eth1': 'defaulthost'},
utils.default_rp_hypervisors(
hypervisors={'eth0': 'thathost'},
device_mappings={'physnet0': ['eth0', 'eth1']},
default_hypervisor='defaulthost',
)
)