osm_mon/tests/unit/evaluator/test_evaluator_service.py

   1 # -*- coding: utf-8 -*-
   2
   3 # Copyright 2018 Whitestack, LLC
   4 # *************************************************************
   5
   6 # This file is part of OSM Monitoring module
   7 # All Rights Reserved to Whitestack, LLC
   8
   9 # Licensed under the Apache License, Version 2.0 (the "License"); you may
  10 # not use this file except in compliance with the License. You may obtain
  11 # a copy of the License at
  12
  13 #         http://www.apache.org/licenses/LICENSE-2.0
  14
  15 # Unless required by applicable law or agreed to in writing, software
  16 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  17 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  18 # License for the specific language governing permissions and limitations
  19 # under the License.
  20 # For those usages not covered by the Apache License, Version 2.0 please
  21 # contact: bdiaz@whitestack.com or glavado@whitestack.com
  22 ##
  23 from unittest import TestCase, mock
  24
  25 from osm_mon.core.common_db import CommonDbClient
  26 from osm_mon.core.config import Config
  27 from osm_mon.core.message_bus_client import MessageBusClient
  28 from osm_mon.evaluator.backends.prometheus import PrometheusBackend
  29 from osm_mon.evaluator.evaluator import AlarmStatus
  30 from osm_mon.evaluator.service import EvaluatorService
  31
  32 vnfr_record_mock = {
  33     "_id": "0d9d06ad-3fc2-418c-9934-465e815fafe2",
  34     "ip-address": "192.168.160.2",
  35     "created-time": 1535392482.0044956,
  36     "vim-account-id": "be48ae31-1d46-4892-a4b4-d69abd55714b",
  37     "vdur": [
  38         {
  39             "interfaces": [
  40                 {
  41                     "mac-address": "fa:16:3e:71:fd:b8",
  42                     "name": "eth0",
  43                     "ip-address": "192.168.160.2"
  44                 }
  45             ],
  46             "status": "ACTIVE",
  47             "vim-id": "63a65636-9fc8-4022-b070-980823e6266a",
  48             "name": "cirros_ns-1-cirros_vnfd-VM-1",
  49             "status-detailed": None,
  50             "ip-address": "192.168.160.2",
  51             "vdu-id-ref": "cirros_vnfd-VM"
  52         }
  53     ],
  54     "id": "0d9d06ad-3fc2-418c-9934-465e815fafe2",
  55     "vnfd-ref": "cirros_vdu_scaling_vnf",
  56     "vnfd-id": "63f44c41-45ee-456b-b10d-5f08fb1796e0",
  57     "_admin": {
  58         "created": 1535392482.0067868,
  59         "projects_read": [
  60             "admin"
  61         ],
  62         "modified": 1535392482.0067868,
  63         "projects_write": [
  64             "admin"
  65         ]
  66     },
  67     "nsr-id-ref": "87776f33-b67c-417a-8119-cb08e4098951",
  68     "member-vnf-index-ref": "1",
  69     "connection-point": [
  70         {
  71             "name": "eth0",
  72             "id": None,
  73             "connection-point-id": None
  74         }
  75     ]
  76 }
  77
  78 vnfd_record_mock = {
  79     "_id": "63f44c41-45ee-456b-b10d-5f08fb1796e0",
  80     "id": "cirros_vdu_scaling_vnf",
  81     "_admin": {},
  82     "product-name": "cirros_vdu_scaling_vnf",
  83     "version": "1.0",
  84     "vdu": [
  85         {
  86             "id": "cirros_vnfd-VM",
  87             "name": "cirros_vnfd-VM",
  88             "int-cpd": [
  89                 {
  90                     "virtual-network-interface-requirement": [
  91                         {
  92                             "name": "vdu-eth0"
  93                         }
  94                     ],
  95                     "id": "vdu-eth0-int"
  96                 }
  97             ],
  98             "virtual-compute-desc": "cirros_vnfd-VM-compute",
  99             "virtual-storage-desc": [
 100                 "cirros_vnfd-VM-storage"
 101             ],
 102             "sw-image-desc": "cirros034",
 103             "monitoring-parameter": [
 104                 {
 105                     "id": "cirros_vnfd-VM_memory_util",
 106                     "name": "cirros_vnfd-VM_memory_util",
 107                     "performance-metric": "average_memory_utilization"
 108                 }
 109             ]
 110         }
 111     ],
 112     "virtual-compute-desc": [
 113         {
 114             "id": "cirros_vnfd-VM-compute",
 115             "virtual-cpu": {
 116                 "num-virtual-cpu": 1
 117             },
 118             "virtual-memory": {
 119                 "size": 1
 120             }
 121         }
 122     ],
 123     "virtual-storage-desc": [
 124         {
 125             "id": "cirros_vnfd-VM-storage",
 126             "size-of-storage": 2
 127         }
 128     ],
 129     "sw-image-desc": [
 130         {
 131             "id": "cirros034",
 132             "name": "cirros034",
 133             "image": "cirros034"
 134         }
 135     ],
 136     "ext-cpd": [
 137         {
 138             "int-cpd": {
 139                 "vdu-id": "cirros_vnfd-VM",
 140                 "cpd": "vdu-eth0-int"
 141             },
 142             "id": "vnf-cp0-ext"
 143         }
 144     ],
 145     "df": [
 146         {
 147             "id": "default-df",
 148             "vdu-profile": [
 149                 {
 150                     "id": "cirros_vnfd-VM"
 151                 }
 152             ],
 153             "instantiation-level": [
 154                 {
 155                     "id": "default-instantiation-level",
 156                     "vdu-level": [
 157                         {
 158                             "vdu-id": "cirros_vnfd-VM"
 159                         }
 160                     ]
 161                 }
 162             ]
 163         }
 164     ],
 165     "description": "Simple VNF example with a cirros and a scaling group descriptor",
 166     "mgmt-cp": "vnf-cp0-ext"
 167 }
 168
 169
 170 @mock.patch.object(CommonDbClient, "__init__", lambda *args, **kwargs: None)
 171 @mock.patch.object(MessageBusClient, "__init__", lambda *args, **kwargs: None)
 172 class EvaluatorTest(TestCase):
 173     def setUp(self):
 174         super().setUp()
 175         self.config = Config()
 176
 177     @mock.patch.object(EvaluatorService, "_get_metric_value")
 178     def test_evaluate_metric(self, get_metric_value):
 179         mock_alarm = mock.Mock()
 180         mock_alarm.operation = 'gt'
 181         mock_alarm.threshold = 50.0
 182         mock_alarm.metric = 'metric_name'
 183         get_metric_value.return_value = 100.0
 184
 185         service = EvaluatorService(self.config)
 186         service.queue = mock.Mock()
 187         service._evaluate_metric(mock_alarm)
 188         service.queue.put.assert_called_with((mock_alarm, AlarmStatus.ALARM))
 189         service.queue.reset_mock()
 190
 191         mock_alarm.operation = 'lt'
 192         service._evaluate_metric(mock_alarm)
 193         service.queue.put.assert_called_with((mock_alarm, AlarmStatus.OK))
 194         service.queue.reset_mock()
 195
 196         get_metric_value.return_value = None
 197         service._evaluate_metric(mock_alarm)
 198         service.queue.put.assert_called_with((mock_alarm, AlarmStatus.INSUFFICIENT))
 199
 200     @mock.patch('multiprocessing.Process')
 201     @mock.patch.object(EvaluatorService, "_evaluate_metric")
 202     @mock.patch.object(CommonDbClient, "get_vnfd")
 203     @mock.patch.object(CommonDbClient, "get_vnfr")
 204     @mock.patch.object(CommonDbClient, "get_alarms")
 205     def test_evaluate_alarms(self, alarm_list, get_vnfr, get_vnfd, evaluate_metric, process):
 206         mock_alarm = mock.Mock()
 207         mock_alarm.vdur_name = 'cirros_ns-1-cirros_vnfd-VM-1'
 208         mock_alarm.monitoring_param = 'cirros_vnf_memory_util'
 209         mock_alarm.tags = {'name': 'value'}
 210         alarm_list.return_value = [mock_alarm]
 211         get_vnfr.return_value = vnfr_record_mock
 212         get_vnfd.return_value = vnfd_record_mock
 213
 214         evaluator = EvaluatorService(self.config)
 215         evaluator.evaluate_alarms()
 216
 217         process.assert_called_with(target=evaluate_metric, args=(mock_alarm,))
 218
 219     @mock.patch.object(PrometheusBackend, "get_metric_value")
 220     def test_get_metric_value_prometheus(self, get_metric_value):
 221         self.config.set('evaluator', 'backend', 'prometheus')
 222         evaluator = EvaluatorService(self.config)
 223         evaluator._get_metric_value('test', {})
 224
 225         get_metric_value.assert_called_with('test', {})