text: #    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.
  from unittest import mock
  
  import ddt
  from oslo_utils import uuidutils
  
  import pyroute2.ipdb.interfaces
  from pyroute2.netlink.rtnl import ifinfmsg
  
  from kuryr.lib.binding.drivers import utils
  from kuryr.lib import constants
  from kuryr.tests.unit import base
  
  
  @ddt.ddt
  class BindingDriversUtilsTest(base.TestCase):
      """Unit tests for binding drivers utils"""
  
      def test_get_veth_pair_names(self):
          fake_neutron_port_id = uuidutils.generate_uuid()
          generated_ifname, generated_peer = utils.get_veth_pair_names(
              fake_neutron_port_id)
  
          namelen = constants.NIC_NAME_LEN
          ifname_postlen = namelen - len(constants.VETH_PREFIX)
          peer_postlen = namelen - len(constants.CONTAINER_VETH_PREFIX)
  
          self.assertEqual(namelen, len(generated_ifname))
          self.assertEqual(namelen, len(generated_peer))
          self.assertIn(constants.VETH_PREFIX, generated_ifname)
          self.assertIn(constants.CONTAINER_VETH_PREFIX, generated_peer)
          self.assertIn(fake_neutron_port_id[:ifname_postlen], generated_ifname)
          self.assertIn(fake_neutron_port_id[:peer_postlen], generated_peer)
  
      @ddt.data((False), (True))
      def test_is_up(self, interface_flag):
          fake_interface = {'flags': 0x0}
          if interface_flag:
              fake_interface['flags'] = ifinfmsg.IFF_UP
              self.assertEqual(True, utils.is_up(fake_interface))
          else:
              self.assertEqual(False, utils.is_up(fake_interface))
  
      @ddt.data(
          (['10.10.10.11'], ['384ac9fc-eefa-4399-8d88-1181433e33b1'], False,
           None, None),
          (['10.10.10.11'], ['384ac9fc-eefa-4399-8d88-1181433e33b1'],
           True, None, None),
          (['10.10.10.11', '10.11.0.10'],
           ['384ac9fc-eefa-4399-8d88-1181433e33b1',
            '0a6eab28-9dc1-46c0-997c-cb9f66f6081f'],
           False, 1500, 'fa:16:3e:22:a3:3d'))
      @ddt.unpack
      @mock.patch.object(utils, 'is_up')
      def test__configure_container_iface(
              self, addrs, subnet_ids, already_up, mtu, mac, mock_is_up):
          subnets = [{
              'allocation_pools': [{'end': '10.11.0.254', 'start': '10.11.0.2'}],
              'cidr': '10.11.0.0/26',
              'created_at': '2016-09-27T07:55:12',
              'description': '',
              'dns_nameservers': [],
              'enable_dhcp': True,
              'gateway_ip': '10.11.0.1',
              'host_routes': [],
              'id': '0a6eab28-9dc1-46c0-997c-cb9f66f6081f',
              'ip_version': 4,
              'ipv6_address_mode': None,
              'ipv6_ra_mode': None,
              'name': 'subtest',
              'network_id': '90146ed2-c3ce-4001-866e-e97e513530a3',
              'revision': 2,
              'service_types': [],
              'subnetpool_id': None,
              'tenant_id': '0c0d1f46fa8d485d9534ea0e35f37bd3',
              'updated_at': '2016-09-27T07:55:12'
          }, {
              'allocation_pools': [{'end': '10.10.0.254', 'start': '10.10.0.2'}],
              'cidr': '10.10.0.0/24',
              'created_at': '2016-09-27T08:57:13',
              'description': '',
              'dns_nameservers': [],
              'enable_dhcp': True,
              'gateway_ip': '10.10.0.1',
              'host_routes': [],
              'id': '384ac9fc-eefa-4399-8d88-1181433e33b1',
              'ip_version': 4,
              'ipv6_address_mode': None,
              'ipv6_ra_mode': None,
              'name': '10.10.0.0/24',
              'network_id': 'bfb2f525-bedf-48ed-b125-102ee7920253',
              'revision': 2,
              'service_types': [],
              'subnetpool_id': None,
              'tenant_id': '51b66b97a12f42a990452967d2c555ac',
              'updated_at': '2016-09-27T08:57:13'}]
  
          fake_iface = mock.Mock(spec=pyroute2.ipdb.interfaces.Interface)
          _set_mtu = mock.Mock()
          _set_address = mock.Mock()
          fake_iface.attach_mock(_set_mtu, 'set_mtu')
          fake_iface.attach_mock(_set_address, 'set_address')
          mock_is_up.return_value = already_up
  
          fixed_ips = []
          for ip, subnet_id in zip(addrs, subnet_ids):
              fixed_ips.append({
                  utils.IP_ADDRESS_KEY: ip,
                  utils.SUBNET_ID_KEY: subnet_id})
  
          utils._configure_container_iface(
              fake_iface,
              subnets,
              fixed_ips,
              mtu=mtu,
              hwaddr=mac)
  
          subnets_prefix_by_id = dict(
              (subnet['id'], int(subnet['cidr'].split('/')[1])) for
              subnet in subnets)
          for ip, subnet_id in zip(addrs, subnet_ids):
              fake_iface.add_ip.assert_any_call(
                  ip, subnets_prefix_by_id[subnet_id])
  
          if already_up:
              fake_iface.up.assert_not_called()
          else:
              fake_iface.up.assert_called_once()
  
          if mtu is None:
              fake_iface.set_mtu.assert_not_called()
          else:
              fake_iface.set_mtu.assert_called_with(mtu)
  
          if mac is None:
              fake_iface.set_address.assert_not_called()
          else:
              fake_iface.set_address.assert_called_with(mac)
  
      def test_get_ipdb(self):
          ip = utils.get_ipdb()
          self.assertEqual(ip, utils.get_ipdb())
  