# Copyright 2018 Red Hat, Inc.
#
#    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 oslo_utils import uuidutils

from neutron.agent.linux import ip_lib
from neutron.privileged.agent.linux import ip_lib as priv_ip_lib
from neutron.tests.functional import base


class GetDevicesTestCase(base.BaseLoggingTestCase):

    def _remove_ns(self, namespace):
        priv_ip_lib.remove_netns(namespace)

    def test_get_devices(self):
        namespace = 'ns_test-' + uuidutils.generate_uuid()
        priv_ip_lib.create_netns(namespace)
        self.addCleanup(self._remove_ns, namespace)
        interfaces = ['int_01', 'int_02', 'int_03', 'int_04', 'int_05']
        interfaces_to_check = (interfaces + ip_lib.FB_TUNNEL_DEVICE_NAMES +
                               [ip_lib.LOOPBACK_DEVNAME])
        for interface in interfaces:
            priv_ip_lib.create_interface(interface, namespace, 'dummy')

        device_names = priv_ip_lib.get_devices(namespace)
        for name in device_names:
            self.assertIn(name, interfaces_to_check)

        for interface in interfaces:
            priv_ip_lib.delete_interface(interface, namespace)

        device_names = priv_ip_lib.get_devices(namespace)
        for name in device_names:
            self.assertNotIn(name, interfaces)