n2vc/tests/unit/test_n2vc_juju_conn.py

   1 # Copyright 2020 Canonical Ltd.
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 #     Unless required by applicable law or agreed to in writing, software
  10 #     distributed under the License is distributed on an "AS IS" BASIS,
  11 #     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 #     See the License for the specific language governing permissions and
  13 #     limitations under the License.
  14
  15
  16 import asyncio
  17 import logging
  18 import asynctest
  19 from n2vc.n2vc_juju_conn import N2VCJujuConnector
  20 from osm_common import fslocal
  21 from n2vc.exceptions import (
  22     JujuK8sProxycharmNotSupported,
  23     N2VCBadArgumentsException,
  24     N2VCException,
  25 )
  26
  27
  28 class N2VCJujuConnTestCase(asynctest.TestCase):
  29     @asynctest.mock.patch("n2vc.libjuju.Libjuju._create_health_check_task")
  30     @asynctest.mock.patch("juju.controller.Controller.update_endpoints")
  31     @asynctest.mock.patch("juju.client.connector.Connector.connect")
  32     @asynctest.mock.patch("juju.controller.Controller.connection")
  33     @asynctest.mock.patch("n2vc.libjuju.Libjuju._get_api_endpoints_db")
  34     def setUp(
  35         self,
  36         mock__get_api_endpoints_db=None,
  37         mock_connection=None,
  38         mock_connect=None,
  39         mock_update_endpoints=None,
  40         mock__create_health_check_task=None,
  41     ):
  42         mock__get_api_endpoints_db.return_value = ["2.2.2.2:17070"]
  43         loop = asyncio.get_event_loop()
  44         db = {}
  45         vca_config = {
  46             "secret": "secret",
  47             "api_proxy": "api_proxy",
  48             "cloud": "cloud",
  49             "k8s_cloud": "k8s_cloud",
  50         }
  51
  52         logging.disable(logging.CRITICAL)
  53
  54         self.n2vc = N2VCJujuConnector(
  55             db=db,
  56             fs=fslocal.FsLocal(),
  57             log=None,
  58             loop=loop,
  59             url="2.2.2.2:17070",
  60             username="admin",
  61             vca_config=vca_config,
  62             on_update_db=None,
  63         )
  64
  65
  66 @asynctest.mock.patch("n2vc.libjuju.Libjuju.get_metrics")
  67 class GetMetricssTest(N2VCJujuConnTestCase):
  68     def setUp(self):
  69         super(GetMetricssTest, self).setUp()
  70
  71     def test_success(self, mock_get_metrics):
  72         _ = self.loop.run_until_complete(self.n2vc.get_metrics("model", "application"))
  73         mock_get_metrics.assert_called_once()
  74
  75     def test_except(self, mock_get_metrics):
  76         mock_get_metrics.side_effect = Exception()
  77         with self.assertRaises(Exception):
  78             _ = self.loop.run_until_complete(
  79                 self.n2vc.get_metrics("model", "application")
  80             )
  81         mock_get_metrics.assert_called_once()
  82
  83
  84 @asynctest.mock.patch("osm_common.fslocal.FsLocal.file_exists")
  85 @asynctest.mock.patch(
  86     "osm_common.fslocal.FsLocal.path", new_callable=asynctest.PropertyMock, create=True
  87 )
  88 @asynctest.mock.patch("n2vc.libjuju.Libjuju.deploy_charm")
  89 @asynctest.mock.patch("n2vc.libjuju.Libjuju.add_model")
  90 class K8sProxyCharmsTest(N2VCJujuConnTestCase):
  91     def setUp(self):
  92         super(K8sProxyCharmsTest, self).setUp()
  93
  94     def test_success(
  95         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists,
  96     ):
  97         mock_file_exists.return_value = True
  98         mock_path.return_value = "/path"
  99         ee_id = self.loop.run_until_complete(
 100             self.n2vc.install_k8s_proxy_charm(
 101                 "charm", "nsi-id.ns-id.vnf-id.vdu", "////path/", {},
 102             )
 103         )
 104
 105         mock_add_model.assert_called_once_with("ns-id-k8s", "k8s_cloud")
 106         mock_deploy_charm.assert_called_once_with(
 107             model_name="ns-id-k8s",
 108             application_name="app-vnf-vnf-id-vdu-vdu",
 109             path="/path/path/",
 110             machine_id=None,
 111             db_dict={},
 112             progress_timeout=None,
 113             total_timeout=None,
 114             config=None,
 115         )
 116         self.assertEqual(ee_id, "ns-id-k8s.app-vnf-vnf-id-vdu-vdu.k8s")
 117
 118     @asynctest.mock.patch(
 119         "n2vc.n2vc_juju_conn.N2VCJujuConnector.k8s_cloud",
 120         new_callable=asynctest.PropertyMock,
 121         create=True,
 122     )
 123     def test_no_k8s_cloud(
 124         self,
 125         mock_k8s_cloud,
 126         mock_add_model,
 127         mock_deploy_charm,
 128         mock_path,
 129         mock_file_exists,
 130     ):
 131         mock_k8s_cloud.return_value = None
 132         with self.assertRaises(JujuK8sProxycharmNotSupported):
 133             ee_id = self.loop.run_until_complete(
 134                 self.n2vc.install_k8s_proxy_charm(
 135                     "charm", "nsi-id.ns-id.vnf-id.vdu", "/path/", {},
 136                 )
 137             )
 138             self.assertIsNone(ee_id)
 139
 140     def test_no_artifact_path(
 141         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists,
 142     ):
 143         with self.assertRaises(N2VCBadArgumentsException):
 144             ee_id = self.loop.run_until_complete(
 145                 self.n2vc.install_k8s_proxy_charm(
 146                     "charm", "nsi-id.ns-id.vnf-id.vdu", "", {},
 147                 )
 148             )
 149             self.assertIsNone(ee_id)
 150
 151     def test_no_db(
 152         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists,
 153     ):
 154         with self.assertRaises(N2VCBadArgumentsException):
 155             ee_id = self.loop.run_until_complete(
 156                 self.n2vc.install_k8s_proxy_charm(
 157                     "charm", "nsi-id.ns-id.vnf-id.vdu", "/path/", None,
 158                 )
 159             )
 160             self.assertIsNone(ee_id)
 161
 162     def test_file_not_exists(
 163         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists,
 164     ):
 165         mock_file_exists.return_value = False
 166         with self.assertRaises(N2VCBadArgumentsException):
 167             ee_id = self.loop.run_until_complete(
 168                 self.n2vc.install_k8s_proxy_charm(
 169                     "charm", "nsi-id.ns-id.vnf-id.vdu", "/path/", {},
 170                 )
 171             )
 172             self.assertIsNone(ee_id)
 173
 174     def test_exception(
 175         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists,
 176     ):
 177         mock_file_exists.return_value = True
 178         mock_path.return_value = "/path"
 179         mock_deploy_charm.side_effect = Exception()
 180         with self.assertRaises(N2VCException):
 181             ee_id = self.loop.run_until_complete(
 182                 self.n2vc.install_k8s_proxy_charm(
 183                     "charm", "nsi-id.ns-id.vnf-id.vdu", "path/", {},
 184                 )
 185             )
 186             self.assertIsNone(ee_id)