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# 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 itertools
import random
import socket
from unittest import mock
from neutron_lib import constants
from neutron_lib.tests import _base as base
from neutron_lib.utils import net
class TestGetHostname(base.BaseTestCase):
@mock.patch.object(socket, 'gethostname',
return_value='fake-host-name')
def test_get_hostname(self, mock_gethostname):
self.assertEqual('fake-host-name',
net.get_hostname())
mock_gethostname.assert_called_once_with()
class TestGetRandomMac(base.BaseTestCase):
@mock.patch.object(random, 'getrandbits', return_value=0xa2)
def test_first_4_octets_unchanged(self, mock_rnd):
mac = net.get_random_mac(['aa', 'bb', '00', 'dd', 'ee', 'ff'])
self.assertEqual('aa:bb:00:dd:a2:a2', mac)
mock_rnd.assert_called_with(8)
@mock.patch.object(random, 'getrandbits', return_value=0xa2)
def test_first_4th_octet_generated(self, mock_rnd):
mac = net.get_random_mac(['aa', 'bb', 'cc', '00', 'ee', 'ff'])
self.assertEqual('aa:bb:cc:a2:a2:a2', mac)
mock_rnd.assert_called_with(8)
class TestRandomMacGenerator(base.BaseTestCase):
def test_all_macs_generated(self):
mac = ['aa', 'bb', 'cc', 'dd', 'ee', 'ff']
generator = itertools.islice(net.random_mac_generator(mac), 70000)
self.assertEqual(2**16, len(list(generator)))
@mock.patch.object(random, 'getrandbits', return_value=0xa2)
def test_first_generated_mac(self, mock_rnd):
mac = ['aa', 'bb', 'cc', '00', 'ee', 'ff']
generator = itertools.islice(net.random_mac_generator(mac), 1)
self.assertEqual(['aa:bb:cc:a2:a2:a2'], list(generator))
mock_rnd.assert_called_with(8)
@mock.patch.object(random, 'getrandbits', return_value=0xa2)
def test_respected_early_zeroes_generated_mac(self, mock_rnd):
mac1 = ['00', 'bb', 'cc', '00', 'ee', 'ff']
generator = itertools.islice(net.random_mac_generator(mac1), 1)
self.assertEqual(['00:bb:cc:a2:a2:a2'], list(generator))
mac2 = ['aa', '00', 'cc', '00', 'ee', 'ff']
generator = itertools.islice(net.random_mac_generator(mac2), 1)
self.assertEqual(['aa:00:cc:a2:a2:a2'], list(generator))
mac3 = ['aa', 'bb', '00', '00', 'ee', 'ff']
generator = itertools.islice(net.random_mac_generator(mac3), 1)
self.assertEqual(['aa:bb:00:a2:a2:a2'], list(generator))
mock_rnd.assert_called_with(8)
@mock.patch.object(random, 'getrandbits', return_value=0xa2)
def test_short_supplied_mac(self, mock_rnd):
mac_base = '12:34:56:78'
mac = mac_base.split(':')
generator = itertools.islice(net.random_mac_generator(mac), 1)
self.assertEqual(['12:34:56:78:a2:a2'], list(generator))
mock_rnd.assert_called_with(8)
class TestPortDeviceOwner(base.BaseTestCase):
def test_is_port_trusted(self):
self.assertTrue(net.is_port_trusted(
{'device_owner':
constants.DEVICE_OWNER_NETWORK_PREFIX + 'dev'}))
def test_is_port_not_trusted(self):
self.assertFalse(net.is_port_trusted(
{'device_owner': constants.DEVICE_OWNER_COMPUTE_PREFIX + 'dev'}))
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