E2Manager/handlers/rmrmsghandlers/ran_lost_connection_handler_test.go

   1 //// Copyright 2019 AT&T Intellectual Property
   2 //// Copyright 2019 Nokia
   3 ////
   4 //// Licensed under the Apache License, Version 2.0 (the "License");
   5 //// you may not use this file except in compliance with the License.
   6 //// You may obtain a copy of the License at
   7 ////
   8 ////      http://www.apache.org/licenses/LICENSE-2.0
   9 ////
  10 //// Unless required by applicable law or agreed to in writing, software
  11 //// distributed under the License is distributed on an "AS IS" BASIS,
  12 //// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 //// See the License for the specific language governing permissions and
  14 //// limitations under the License.
  15
  16 //  This source code is part of the near-RT RIC (RAN Intelligent Controller)
  17 //  platform project (RICP).
  18
  19 package rmrmsghandlers
  20
  21 import (
  22         "bytes"
  23         "e2mgr/clients"
  24         "e2mgr/configuration"
  25         "e2mgr/logger"
  26         "e2mgr/managers"
  27         "e2mgr/mocks"
  28         "e2mgr/models"
  29         "e2mgr/services"
  30         "encoding/json"
  31         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
  32         "io/ioutil"
  33         "net/http"
  34         "testing"
  35 )
  36
  37 const (
  38         ranName    = "test"
  39         e2tAddress = "10.10.2.15:9800"
  40 )
  41
  42 func setupLostConnectionHandlerTest(isSuccessfulHttpPost bool) (*RanLostConnectionHandler, *mocks.RnibReaderMock, *mocks.RnibWriterMock, *mocks.HttpClientMock) {
  43         logger, _ := logger.InitLogger(logger.InfoLevel)
  44         config := &configuration.Configuration{
  45                 RnibRetryIntervalMs:       10,
  46                 MaxRnibConnectionAttempts: 3,
  47                 RnibWriter: configuration.RnibWriterConfig {
  48                         StateChangeMessageChannel: StateChangeMessageChannel,
  49                 },
  50         }
  51
  52         readerMock := &mocks.RnibReaderMock{}
  53         writerMock := &mocks.RnibWriterMock{}
  54         rnibDataService := services.NewRnibDataService(logger, config, readerMock, writerMock)
  55         e2tInstancesManager := managers.NewE2TInstancesManager(rnibDataService, logger)
  56         httpClientMock := &mocks.HttpClientMock{}
  57         routingManagerClient := clients.NewRoutingManagerClient(logger, config, httpClientMock)
  58         ranListManager := managers.NewRanListManager(logger, rnibDataService)
  59         ranAlarmService := services.NewRanAlarmService(logger, config)
  60         ranConnectStatusChangeManager := managers.NewRanConnectStatusChangeManager(logger, rnibDataService, ranListManager, ranAlarmService)
  61
  62         e2tAssociationManager := managers.NewE2TAssociationManager(logger, rnibDataService, e2tInstancesManager, routingManagerClient, ranConnectStatusChangeManager)
  63         ranDisconnectionManager := managers.NewRanDisconnectionManager(logger, configuration.ParseConfiguration(), rnibDataService, e2tAssociationManager, ranConnectStatusChangeManager)
  64         handler := NewRanLostConnectionHandler(logger, ranDisconnectionManager)
  65
  66         return handler, readerMock, writerMock, httpClientMock
  67 }
  68
  69 func mockHttpClient(httpClientMock *mocks.HttpClientMock, isSuccessful bool) {
  70         data := models.RoutingManagerE2TDataList{models.NewRoutingManagerE2TData(e2tAddress, RanName)}
  71         marshaled, _ := json.Marshal(data)
  72         body := bytes.NewBuffer(marshaled)
  73         respBody := ioutil.NopCloser(bytes.NewBufferString(""))
  74         var respStatusCode int
  75         if isSuccessful {
  76                 respStatusCode = http.StatusCreated
  77         } else {
  78                 respStatusCode = http.StatusBadRequest
  79         }
  80         httpClientMock.On("Post", clients.DissociateRanE2TInstanceApiSuffix, "application/json", body).Return(&http.Response{StatusCode: respStatusCode, Body: respBody}, nil)
  81 }
  82
  83 func TestLostConnectionHandlerConnectingRanSuccess(t *testing.T) {
  84         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTest(true)
  85
  86         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, AssociatedE2TInstanceAddress: e2tAddress}
  87         var rnibErr error
  88         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  89         updatedNodebInfo1 := *origNodebInfo
  90         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
  91         writerMock.On("UpdateNodebInfo", &updatedNodebInfo1).Return(rnibErr)
  92         updatedNodebInfo2 := *origNodebInfo
  93         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
  94         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
  95         writerMock.On("UpdateNodebInfo", &updatedNodebInfo2).Return(rnibErr)
  96         e2tInstance := &entities.E2TInstance{Address: e2tAddress, AssociatedRanList: []string{ranName}}
  97         readerMock.On("GetE2TInstance", e2tAddress).Return(e2tInstance, nil)
  98         e2tInstanceToSave := *e2tInstance
  99         e2tInstanceToSave.AssociatedRanList = []string{}
 100         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 101         mockHttpClient(httpClientMock, true)
 102         notificationRequest := models.NotificationRequest{RanName: ranName}
 103         handler.Handle(&notificationRequest)
 104         readerMock.AssertExpectations(t)
 105         writerMock.AssertExpectations(t)
 106         httpClientMock.AssertExpectations(t)
 107         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 108 }
 109
 110 func TestLostConnectionHandlerConnectedRanSuccess(t *testing.T) {
 111         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTest(true)
 112
 113         origNodebInfo := &entities.NodebInfo{
 114                 RanName:                      ranName,
 115                 GlobalNbId:                   &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"},
 116                 ConnectionStatus:             entities.ConnectionStatus_CONNECTED,
 117                 AssociatedE2TInstanceAddress: e2tAddress,
 118         }
 119         var rnibErr error
 120         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 121         updatedNodebInfo1 := *origNodebInfo
 122         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 123         writerMock.On("UpdateNodebInfoOnConnectionStatusInversion", &updatedNodebInfo1, ranName+"_DISCONNECTED").Return(rnibErr)
 124         updatedNodebInfo2 := *origNodebInfo
 125         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 126         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
 127         writerMock.On("UpdateNodebInfo", &updatedNodebInfo2).Return(rnibErr)
 128         e2tInstance := &entities.E2TInstance{Address: e2tAddress, AssociatedRanList: []string{ranName}}
 129         readerMock.On("GetE2TInstance", e2tAddress).Return(e2tInstance, nil)
 130         e2tInstanceToSave := *e2tInstance
 131         e2tInstanceToSave.AssociatedRanList = []string{}
 132         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 133         mockHttpClient(httpClientMock, true)
 134         notificationRequest := models.NotificationRequest{RanName: ranName}
 135         handler.Handle(&notificationRequest)
 136         readerMock.AssertExpectations(t)
 137         writerMock.AssertExpectations(t)
 138         httpClientMock.AssertExpectations(t)
 139         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 140 }
 141
 142 func TestLostConnectionHandlerRmDissociateFailure(t *testing.T) {
 143         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTest(false)
 144
 145         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, AssociatedE2TInstanceAddress: e2tAddress}
 146         var rnibErr error
 147         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 148         updatedNodebInfo1 := *origNodebInfo
 149         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 150         writerMock.On("UpdateNodebInfo", &updatedNodebInfo1).Return(rnibErr)
 151         updatedNodebInfo2 := *origNodebInfo
 152         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 153         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
 154         writerMock.On("UpdateNodebInfo", &updatedNodebInfo2).Return(rnibErr)
 155         e2tInstance := &entities.E2TInstance{Address: e2tAddress, AssociatedRanList: []string{ranName}}
 156         readerMock.On("GetE2TInstance", e2tAddress).Return(e2tInstance, nil)
 157         e2tInstanceToSave := *e2tInstance
 158         e2tInstanceToSave.AssociatedRanList = []string{}
 159         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 160         mockHttpClient(httpClientMock, false)
 161         notificationRequest := models.NotificationRequest{RanName: ranName}
 162         handler.Handle(&notificationRequest)
 163         readerMock.AssertExpectations(t)
 164         writerMock.AssertExpectations(t)
 165         httpClientMock.AssertExpectations(t)
 166         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 167 }