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(
 106             "ns-id-k8s",
 107             cloud_name=self.n2vc.k8s_cloud,
 108             credential_name=self.n2vc.k8s_cloud
 109         )
 110         mock_deploy_charm.assert_called_once_with(
 111             model_name="ns-id-k8s",
 112             application_name="app-vnf-vnf-id-vdu-vdu",
 113             path="/path/path/",
 114             machine_id=None,
 115             db_dict={},
 116             progress_timeout=None,
 117             total_timeout=None,
 118             config=None,
 119         )
 120         self.assertEqual(ee_id, "ns-id-k8s.app-vnf-vnf-id-vdu-vdu.k8s")
 121
 122     @asynctest.mock.patch(
 123         "n2vc.n2vc_juju_conn.N2VCJujuConnector.k8s_cloud",
 124         new_callable=asynctest.PropertyMock,
 125         create=True,
 126     )
 127     def test_no_k8s_cloud(
 128         self,
 129         mock_k8s_cloud,
 130         mock_add_model,
 131         mock_deploy_charm,
 132         mock_path,
 133         mock_file_exists,
 134     ):
 135         mock_k8s_cloud.return_value = None
 136         with self.assertRaises(JujuK8sProxycharmNotSupported):
 137             ee_id = self.loop.run_until_complete(
 138                 self.n2vc.install_k8s_proxy_charm(
 139                     "charm", "nsi-id.ns-id.vnf-id.vdu", "/path/", {},
 140                 )
 141             )
 142             self.assertIsNone(ee_id)
 143
 144     def test_no_artifact_path(
 145         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists,
 146     ):
 147         with self.assertRaises(N2VCBadArgumentsException):
 148             ee_id = self.loop.run_until_complete(
 149                 self.n2vc.install_k8s_proxy_charm(
 150                     "charm", "nsi-id.ns-id.vnf-id.vdu", "", {},
 151                 )
 152             )
 153             self.assertIsNone(ee_id)
 154
 155     def test_no_db(
 156         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists,
 157     ):
 158         with self.assertRaises(N2VCBadArgumentsException):
 159             ee_id = self.loop.run_until_complete(
 160                 self.n2vc.install_k8s_proxy_charm(
 161                     "charm", "nsi-id.ns-id.vnf-id.vdu", "/path/", None,
 162                 )
 163             )
 164             self.assertIsNone(ee_id)
 165
 166     def test_file_not_exists(
 167         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists,
 168     ):
 169         mock_file_exists.return_value = False
 170         with self.assertRaises(N2VCBadArgumentsException):
 171             ee_id = self.loop.run_until_complete(
 172                 self.n2vc.install_k8s_proxy_charm(
 173                     "charm", "nsi-id.ns-id.vnf-id.vdu", "/path/", {},
 174                 )
 175             )
 176             self.assertIsNone(ee_id)
 177
 178     def test_exception(
 179         self, mock_add_model, mock_deploy_charm, mock_path, mock_file_exists,
 180     ):
 181         mock_file_exists.return_value = True
 182         mock_path.return_value = "/path"
 183         mock_deploy_charm.side_effect = Exception()
 184         with self.assertRaises(N2VCException):
 185             ee_id = self.loop.run_until_complete(
 186                 self.n2vc.install_k8s_proxy_charm(
 187                     "charm", "nsi-id.ns-id.vnf-id.vdu", "path/", {},
 188                 )
 189             )
 190             self.assertIsNone(ee_id)