File: test_network.py

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# Copyright 2013 NEC Corporation
#
#    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 collections
from unittest import mock

import netaddr

from django.test.utils import override_settings

from openstack_dashboard import api
from openstack_dashboard.test import helpers as test


class NetworkApiNeutronTests(test.APIMockTestCase):
    def setUp(self):
        super().setUp()
        network_client = mock.patch.object(api.neutron, 'networkclient').start()
        self.sdk_net_client = network_client.return_value

    def _get_expected_addresses(self, server, no_fip_expected=True):
        server_ports = self.ports.filter(device_id=server.id)
        addresses = collections.defaultdict(list)
        for p in server_ports:
            net_name = self.networks.get(id=p['network_id']).name
            for ip in p.fixed_ips:
                version = netaddr.IPAddress(ip['ip_address']).version
                addresses[net_name].append(
                    {'version': version,
                     'addr': ip['ip_address'],
                     'OS-EXT-IPS-MAC:mac_addr': p.mac_address,
                     'OS-EXT-IPS:type': 'fixed'})
            if no_fip_expected:
                continue
            fips = self.floating_ips.filter(port_id=p['id'])
            if not fips:
                continue
            # Only one FIP should match.
            fip = fips[0]
            addresses[net_name].append(
                {'version': 4,
                 'addr': fip.floating_ip_address,
                 'OS-EXT-IPS-MAC:mac_addr': p.mac_address,
                 'OS-EXT-IPS:type': 'floating'})
        return addresses

    def _check_server_address(self, res_server_data, no_fip_expected=False):
        expected_addresses = self._get_expected_addresses(res_server_data,
                                                          no_fip_expected)
        self.assertEqual(len(expected_addresses),
                         len(res_server_data.addresses))
        for net, addresses in expected_addresses.items():
            self.assertIn(net, res_server_data.addresses)
            self.assertEqual(addresses, res_server_data.addresses[net])

    def _test_servers_update_addresses(self, router_enabled=True):
        tenant_id = self.request.user.tenant_id

        servers = self.servers.list()
        server_ids = tuple([server.id for server in servers])
        server_ports = [p for p in self.api_ports_sdk
                        if p['device_id'] in server_ids]
        server_port_ids = tuple([p['id'] for p in server_ports])
        if router_enabled:
            assoc_fips = [fip for fip in self.api_floating_ips_sdk
                          if fip['port_id'] in server_port_ids]
        server_network_ids = [p['network_id'] for p in server_ports]
        server_networks = [net for net in self.api_networks_sdk
                           if net['id'] in server_network_ids]

        list_ports_retvals = server_ports
        port_w_router = None
        if router_enabled:
            self.sdk_net_client.ips.return_value = assoc_fips
            port_w_router = self.api_ports_sdk
        self.sdk_net_client.ports.side_effect = [list_ports_retvals,
                                                 port_w_router]
        self.sdk_net_client.get_port.side_effect = list_ports_retvals
        self.sdk_net_client.networks.return_value = server_networks
        self.sdk_net_client.subnets.return_value = self.api_subnets_sdk

        api.network.servers_update_addresses(self.request, servers)

        self.assertEqual(self.servers.count(), len(servers))
        self.assertEqual([server.id for server in self.servers.list()],
                         [server.id for server in servers])

        no_fip_expected = not router_enabled

        # server[0] has one fixed IP and one floating IP
        # if router ext isenabled.
        self._check_server_address(servers[0], no_fip_expected)
        # The expected is also calculated, we examine the result manually once.
        addrs = servers[0].addresses['net1']
        if router_enabled:
            self.assertEqual(3, len(addrs))
            self.assertEqual('fixed', addrs[0]['OS-EXT-IPS:type'])
            self.assertEqual('fixed', addrs[1]['OS-EXT-IPS:type'])
            self.assertEqual('floating', addrs[2]['OS-EXT-IPS:type'])
        else:
            self.assertEqual(2, len(addrs))
            self.assertEqual('fixed', addrs[0]['OS-EXT-IPS:type'])
            self.assertEqual('fixed', addrs[1]['OS-EXT-IPS:type'])

        # server[1] has one fixed IP.
        self._check_server_address(servers[1], no_fip_expected)
        # manual check.
        addrs = servers[1].addresses['net2']
        self.assertEqual(1, len(addrs))
        self.assertEqual('fixed', addrs[0]['OS-EXT-IPS:type'])

        # server[2] has no corresponding ports in neutron_data,
        # so it should be an empty dict.
        self.assertFalse(servers[2].addresses)

        expected_list_ports = [mock.call(device_id=server_ids)]
        if router_enabled:
            self.sdk_net_client.ips.assert_called_once_with(
                tenant_id=tenant_id, port_id=server_port_ids)
            expected_list_ports.append(mock.call(tenant_id=tenant_id))
        else:
            self.assertEqual(0, self.sdk_net_client.ips.call_count)
        self.sdk_net_client.ports.assert_has_calls(expected_list_ports)
        nets_calls = []
        for server_net_id in server_network_ids:
            nets_calls.append(mock.call(id=server_net_id))
        self.sdk_net_client.networks.assert_has_calls(nets_calls,
                                                      any_order=True)
        self.sdk_net_client.subnets.assert_called_once_with()

    @override_settings(OPENSTACK_NEUTRON_NETWORK={'enable_router': True})
    def test_servers_update_addresses(self):
        self._test_servers_update_addresses()

    @override_settings(OPENSTACK_NEUTRON_NETWORK={'enable_router': False})
    def test_servers_update_addresses_router_disabled(self):
        self._test_servers_update_addresses(router_enabled=False)