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 from unittest.mock import Mock
  19
  20
  21 import asynctest
  22 from n2vc.n2vc_juju_conn import N2VCJujuConnector
  23 from osm_common import fslocal
  24 from n2vc.exceptions import (
  25     JujuK8sProxycharmNotSupported,
  26     N2VCBadArgumentsException,
  27     N2VCException,
  28 )
  29
  30
  31 class N2VCJujuConnTestCase(asynctest.TestCase):
  32     @asynctest.mock.patch("n2vc.libjuju.Libjuju._create_health_check_task")
  33     @asynctest.mock.patch("juju.controller.Controller.update_endpoints")
  34     @asynctest.mock.patch("juju.client.connector.Connector.connect")
  35     @asynctest.mock.patch("juju.controller.Controller.connection")
  36     @asynctest.mock.patch("n2vc.libjuju.Libjuju._get_api_endpoints_db")
  37     def setUp(
  38         self,
  39         mock__get_api_endpoints_db=None,
  40         mock_connection=None,
  41         mock_connect=None,
  42         mock_update_endpoints=None,
  43         mock__create_health_check_task=None,
  44     ):
  45         mock__get_api_endpoints_db.return_value = ["2.2.2.2:17070"]
  46         loop = asyncio.get_event_loop()
  47         db = {}
  48         vca_config = {
  49             "secret": "secret",
  50             "api_proxy": "api_proxy",
  51             "cloud": "cloud",
  52             "k8s_cloud": "k8s_cloud",
  53         }
  54
  55         logging.disable(logging.CRITICAL)
  56
  57         N2VCJujuConnector.get_public_key = Mock()
  58         self.n2vc = N2VCJujuConnector(
  59             db=db,
  60             fs=fslocal.FsLocal(),
  61             log=None,
  62             loop=loop,
  63             url="2.2.2.2:17070",
  64             username="admin",
  65             vca_config=vca_config,
  66             on_update_db=None,
  67         )
  68         N2VCJujuConnector.get_public_key.assert_not_called()
  69
  70
  71 @asynctest.mock.patch("n2vc.libjuju.Libjuju.get_metrics")
  72 class GetMetricssTest(N2VCJujuConnTestCase):
  73     def setUp(self):
  74         super(GetMetricssTest, self).setUp()
  75
  76     def test_success(self, mock_get_metrics):
  77         _ = self.loop.run_until_complete(self.n2vc.get_metrics("model", "application"))
  78         mock_get_metrics.assert_called_once()
  79
  80     def test_except(self, mock_get_metrics):
  81         mock_get_metrics.side_effect = Exception()
  82         with self.assertRaises(Exception):
  83             _ = self.loop.run_until_complete(
  84                 self.n2vc.get_metrics("model", "application")
  85             )
  86         mock_get_metrics.assert_called_once()
  87
  88
  89 @asynctest.mock.patch("n2vc.libjuju.Libjuju.model_exists")
  90 @asynctest.mock.patch("osm_common.fslocal.FsLocal.file_exists")
  91 @asynctest.mock.patch(
  92     "osm_common.fslocal.FsLocal.path", new_callable=asynctest.PropertyMock, create=True
  93 )
  94 @asynctest.mock.patch("n2vc.libjuju.Libjuju.deploy_charm")
  95 @asynctest.mock.patch("n2vc.libjuju.Libjuju.add_model")
  96 class K8sProxyCharmsTest(N2VCJujuConnTestCase):
  97     def setUp(self):
  98         super(K8sProxyCharmsTest, self).setUp()
  99
 100     def test_success(
 101         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, mock_model_exists
 102     ):
 103         mock_model_exists.return_value = None
 104         mock_file_exists.return_value = True
 105         mock_path.return_value = "/path"
 106         ee_id = self.loop.run_until_complete(
 107             self.n2vc.install_k8s_proxy_charm(
 108                 "charm", "nsi-id.ns-id.vnf-id.vdu", "////path/", {},
 109             )
 110         )
 111
 112         mock_add_model.assert_called_once_with(
 113             "ns-id-k8s",
 114             cloud_name=self.n2vc.k8s_cloud,
 115             credential_name=self.n2vc.k8s_cloud
 116         )
 117         mock_deploy_charm.assert_called_once_with(
 118             model_name="ns-id-k8s",
 119             application_name="app-vnf-vnf-id-vdu-vdu",
 120             path="/path/path/",
 121             machine_id=None,
 122             db_dict={},
 123             progress_timeout=None,
 124             total_timeout=None,
 125             config=None,
 126         )
 127         self.assertEqual(ee_id, "ns-id-k8s.app-vnf-vnf-id-vdu-vdu.k8s")
 128
 129     @asynctest.mock.patch(
 130         "n2vc.n2vc_juju_conn.N2VCJujuConnector.k8s_cloud",
 131         new_callable=asynctest.PropertyMock,
 132         create=True,
 133     )
 134     def test_no_k8s_cloud(
 135         self,
 136         mock_k8s_cloud,
 137         mock_add_model,
 138         mock_deploy_charm,
 139         mock_path,
 140         mock_file_exists,
 141         mock_model_exists,
 142     ):
 143         mock_k8s_cloud.return_value = None
 144         with self.assertRaises(JujuK8sProxycharmNotSupported):
 145             ee_id = self.loop.run_until_complete(
 146                 self.n2vc.install_k8s_proxy_charm(
 147                     "charm", "nsi-id.ns-id.vnf-id.vdu", "/path/", {},
 148                 )
 149             )
 150             self.assertIsNone(ee_id)
 151
 152     def test_no_artifact_path(
 153         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, mock_model_exists,
 154     ):
 155         with self.assertRaises(N2VCBadArgumentsException):
 156             ee_id = self.loop.run_until_complete(
 157                 self.n2vc.install_k8s_proxy_charm(
 158                     "charm", "nsi-id.ns-id.vnf-id.vdu", "", {},
 159                 )
 160             )
 161             self.assertIsNone(ee_id)
 162
 163     def test_no_db(
 164         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, mock_model_exists,
 165     ):
 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/", None,
 170                 )
 171             )
 172             self.assertIsNone(ee_id)
 173
 174     def test_file_not_exists(
 175         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, mock_model_exists,
 176     ):
 177         mock_file_exists.return_value = False
 178         with self.assertRaises(N2VCBadArgumentsException):
 179             ee_id = self.loop.run_until_complete(
 180                 self.n2vc.install_k8s_proxy_charm(
 181                     "charm", "nsi-id.ns-id.vnf-id.vdu", "/path/", {},
 182                 )
 183             )
 184             self.assertIsNone(ee_id)
 185
 186     def test_exception(
 187         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists, mock_model_exists,
 188     ):
 189         mock_model_exists.return_value = None
 190         mock_file_exists.return_value = True
 191         mock_path.return_value = "/path"
 192         mock_deploy_charm.side_effect = Exception()
 193         with self.assertRaises(N2VCException):
 194             ee_id = self.loop.run_until_complete(
 195                 self.n2vc.install_k8s_proxy_charm(
 196                     "charm", "nsi-id.ns-id.vnf-id.vdu", "path/", {},
 197                 )
 198             )
 199             self.assertIsNone(ee_id)