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# Copyright (c) 2015 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 hashlib
from unittest import mock
from oslo_utils import encodeutils
from oslo_utils import excutils
from oslo_utils import uuidutils
from neutron_lib.api.definitions import portbindings_extended as pb_ext
from neutron_lib import constants
from neutron_lib import exceptions
from neutron_lib.plugins import utils
from neutron_lib.tests import _base as base
LONG_NAME1 = "A_REALLY_LONG_INTERFACE_NAME1"
LONG_NAME2 = "A_REALLY_LONG_INTERFACE_NAME2"
SHORT_NAME = "SHORT"
class TestUtils(base.BaseTestCase):
def test_is_valid_vlan_tag(self):
for v in [constants.MIN_VLAN_TAG, constants.MIN_VLAN_TAG + 2,
constants.MAX_VLAN_TAG, constants.MAX_VLAN_TAG - 2]:
self.assertTrue(utils.is_valid_vlan_tag(v))
def test_is_valid_vlan_tag_invalid_data(self):
for v in [constants.MIN_VLAN_TAG - 1, constants.MIN_VLAN_TAG - 2,
constants.MAX_VLAN_TAG + 1, constants.MAX_VLAN_TAG + 2]:
self.assertFalse(utils.is_valid_vlan_tag(v))
def test_verify_vlan_range(self):
for v in [(constants.MIN_VLAN_TAG, constants.MIN_VLAN_TAG + 2),
(constants.MIN_VLAN_TAG + 2, constants.MAX_VLAN_TAG - 2)]:
self.assertIsNone(utils.verify_vlan_range(v))
def test_verify_vlan_range_invalid_range(self):
for v in [(constants.MIN_VLAN_TAG, constants.MAX_VLAN_TAG + 2),
(constants.MIN_VLAN_TAG + 4, constants.MIN_VLAN_TAG + 1)]:
self.assertRaises(exceptions.NetworkVlanRangeError,
utils.verify_vlan_range, v)
def test_parse_network_vlan_range(self):
self.assertEqual(
('n1', (1, 3)),
utils.parse_network_vlan_range('n1:1:3'))
self.assertEqual(
('n1', (1, 1111)),
utils.parse_network_vlan_range('n1:1:1111'))
def test_parse_network_vlan_range_invalid_range(self):
self.assertRaises(exceptions.NetworkVlanRangeError,
utils.parse_network_vlan_range,
'n1:1,4')
def test_parse_network_vlan_range_missing_network(self):
self.assertRaises(exceptions.PhysicalNetworkNameError,
utils.parse_network_vlan_range,
':1:4')
def test_parse_network_vlan_range_invalid_min_type(self):
self.assertRaises(exceptions.NetworkVlanRangeError,
utils.parse_network_vlan_range,
'n1:a:4')
def test_parse_network_vlan_ranges(self):
ranges = utils.parse_network_vlan_ranges(
['n1:1:3', 'n2:2:4', 'n3', 'n4', 'n4:10:12'])
self.assertEqual(4, len(ranges.keys()))
self.assertIn('n1', ranges.keys())
self.assertIn('n2', ranges.keys())
self.assertEqual(2, len(ranges['n1'][0]))
self.assertEqual(1, ranges['n1'][0][0])
self.assertEqual(3, ranges['n1'][0][1])
self.assertEqual(2, len(ranges['n2'][0]))
self.assertEqual(2, ranges['n2'][0][0])
self.assertEqual(4, ranges['n2'][0][1])
self.assertEqual([constants.VLAN_VALID_RANGE], ranges['n3'])
self.assertEqual([constants.VLAN_VALID_RANGE], ranges['n4'])
def test_is_valid_gre_id(self):
for v in [constants.MIN_GRE_ID, constants.MIN_GRE_ID + 2,
constants.MAX_GRE_ID, constants.MAX_GRE_ID - 2]:
self.assertTrue(utils.is_valid_gre_id(v))
def test_is_valid_gre_id_invalid_id(self):
for v in [constants.MIN_GRE_ID - 1, constants.MIN_GRE_ID - 2,
True, 'z', 99.999, []]:
self.assertFalse(utils.is_valid_gre_id(v))
def test_is_valid_vxlan_vni(self):
for v in [constants.MIN_VXLAN_VNI, constants.MAX_VXLAN_VNI,
constants.MIN_VXLAN_VNI + 1, constants.MAX_VXLAN_VNI - 1]:
self.assertTrue(utils.is_valid_vxlan_vni(v))
def test_is_valid_vxlan_vni_invalid_values(self):
for v in [constants.MIN_VXLAN_VNI - 1, constants.MAX_VXLAN_VNI + 1,
True, 'a', False, {}]:
self.assertFalse(utils.is_valid_vxlan_vni(v))
def test_is_valid_geneve_vni(self):
for v in [constants.MIN_GENEVE_VNI, constants.MAX_GENEVE_VNI,
constants.MIN_GENEVE_VNI + 1, constants.MAX_GENEVE_VNI - 1]:
self.assertTrue(utils.is_valid_geneve_vni(v))
def test_is_valid_geneve_vni_invalid_values(self):
for v in [constants.MIN_GENEVE_VNI - 1, constants.MAX_GENEVE_VNI + 1,
True, False, (), 'True']:
self.assertFalse(utils.is_valid_geneve_vni(v))
def test_verify_tunnel_range_known_tunnel_type(self):
mock_fns = [mock.Mock(return_value=False) for _ in range(3)]
mock_map = {
constants.TYPE_GRE: mock_fns[0],
constants.TYPE_VXLAN: mock_fns[1],
constants.TYPE_GENEVE: mock_fns[2]
}
with mock.patch.dict(utils._TUNNEL_MAPPINGS, mock_map):
for t in [constants.TYPE_GRE, constants.TYPE_VXLAN,
constants.TYPE_GENEVE]:
self.assertRaises(
exceptions.NetworkTunnelRangeError,
utils.verify_tunnel_range, [0, 1], t)
for f in mock_fns:
f.assert_called_once_with(0)
def test_verify_tunnel_range_invalid_range(self):
for r in [[1, 0], [0, -1], [2, 1]]:
self.assertRaises(
exceptions.NetworkTunnelRangeError,
utils.verify_tunnel_range, r, constants.TYPE_FLAT)
def test_verify_tunnel_range(self):
for r in [[0, 1], [-1, 0], [1, 2]]:
self.assertIsNone(
utils.verify_tunnel_range(r, constants.TYPE_FLAT))
def test_delete_port_on_error(self):
core_plugin = mock.Mock()
with mock.patch.object(excutils, 'save_and_reraise_exception'):
with mock.patch.object(utils, 'LOG'):
with utils.delete_port_on_error(core_plugin, 'ctx', '1'):
raise Exception()
core_plugin.delete_port.assert_called_once_with(
'ctx', '1', l3_port_check=False)
def test_update_port_on_error(self):
core_plugin = mock.Mock()
with mock.patch.object(excutils, 'save_and_reraise_exception'):
with mock.patch.object(utils, 'LOG'):
with utils.update_port_on_error(core_plugin, 'ctx', '1', '2'):
raise Exception()
core_plugin.update_port.assert_called_once_with(
'ctx', '1', {'port': '2'})
@staticmethod
def _hash_prefix(name):
# nosec B324
hashed_name = hashlib.sha1(encodeutils.to_utf8(name))
return hashed_name.hexdigest()[0:utils.INTERFACE_HASH_LEN]
def test_get_interface_name(self):
prefix = "pre-"
prefix_long = "long_prefix"
prefix_exceeds_max_dev_len = "much_too_long_prefix"
self.assertEqual("A_REALLY_" + self._hash_prefix(LONG_NAME1),
utils.get_interface_name(LONG_NAME1))
self.assertEqual("SHORT",
utils.get_interface_name(SHORT_NAME))
self.assertEqual("pre-A_REA" + self._hash_prefix(LONG_NAME1),
utils.get_interface_name(LONG_NAME1, prefix=prefix))
self.assertEqual("pre-SHORT",
utils.get_interface_name(SHORT_NAME, prefix=prefix))
# len(prefix) > max_device_len - len(hash_used)
self.assertRaises(ValueError, utils.get_interface_name, SHORT_NAME,
prefix_long)
# len(prefix) > max_device_len
self.assertRaises(ValueError, utils.get_interface_name, SHORT_NAME,
prefix=prefix_exceeds_max_dev_len)
def test_get_interface_uniqueness(self):
prefix = "prefix-"
if_prefix1 = utils.get_interface_name(LONG_NAME1, prefix=prefix)
if_prefix2 = utils.get_interface_name(LONG_NAME2, prefix=prefix)
self.assertNotEqual(if_prefix1, if_prefix2)
def test_get_interface_max_len(self):
self.assertEqual(constants.DEVICE_NAME_MAX_LEN,
len(utils.get_interface_name(LONG_NAME1)))
self.assertEqual(10, len(utils.get_interface_name(LONG_NAME1,
max_len=10)))
self.assertEqual(12, len(utils.get_interface_name(LONG_NAME1,
prefix="pre-",
max_len=12)))
def test_create_network(self):
mock_plugin = mock.Mock()
mock_plugin.create_network = lambda c, n: n
mock_ctx = mock.Mock()
mock_ctx.project_id = 'p1'
net = utils.create_network(
mock_plugin, mock_ctx, {'network': {'name': 'n1'}})
self.assertDictEqual(
{'project_id': 'p1', 'admin_state_up': True, 'shared': False,
'tenant_id': 'p1', 'name': 'n1'},
net['network'])
def test_create_subnet(self):
mock_plugin = mock.Mock()
mock_plugin.create_subnet = lambda c, s: s
mock_ctx = mock.Mock()
mock_ctx.project_id = 'p1'
net_id = uuidutils.generate_uuid()
snet = utils.create_subnet(
mock_plugin, mock_ctx,
{'subnet': {'network_id': net_id, 'ip_version': 4}})
self.assertEqual('p1', snet['subnet']['tenant_id'])
self.assertEqual('p1', snet['subnet']['project_id'])
self.assertEqual(4, snet['subnet']['ip_version'])
self.assertEqual(net_id, snet['subnet']['network_id'])
def test_create_port(self):
mock_plugin = mock.Mock()
mock_plugin.create_port = lambda c, p: p
mock_ctx = mock.Mock()
mock_ctx.project_id = 'p1'
net_id = uuidutils.generate_uuid()
port = utils.create_port(
mock_plugin, mock_ctx,
{'port': {'network_id': net_id, 'name': 'aport'}})
self.assertEqual('p1', port['port']['tenant_id'])
self.assertEqual('p1', port['port']['project_id'])
self.assertEqual('aport', port['port']['name'])
self.assertEqual(net_id, port['port']['network_id'])
def test_get_port_binding_by_status_and_host(self):
bindings = []
self.assertIsNone(utils.get_port_binding_by_status_and_host(
bindings, constants.INACTIVE))
bindings.extend([{pb_ext.STATUS: constants.INACTIVE,
pb_ext.HOST: 'host-1'},
{pb_ext.STATUS: constants.INACTIVE,
pb_ext.HOST: 'host-2'}])
self.assertEqual(
'host-1', utils.get_port_binding_by_status_and_host(
bindings,
constants.INACTIVE)[pb_ext.HOST])
self.assertEqual(
'host-2', utils.get_port_binding_by_status_and_host(
bindings,
constants.INACTIVE,
host='host-2')[pb_ext.HOST])
self.assertIsNone(utils.get_port_binding_by_status_and_host(
bindings, constants.ACTIVE))
self.assertRaises(exceptions.PortBindingNotFound,
utils.get_port_binding_by_status_and_host, bindings,
constants.ACTIVE, 'host', True, 'port_id')
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