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                 StateChangeMessageChannel: StateChangeMessageChannel,
  48         }
  49
  50         readerMock := &mocks.RnibReaderMock{}
  51         writerMock := &mocks.RnibWriterMock{}
  52         rnibDataService := services.NewRnibDataService(logger, config, readerMock, writerMock)
  53         e2tInstancesManager := managers.NewE2TInstancesManager(rnibDataService, logger)
  54         httpClientMock := &mocks.HttpClientMock{}
  55         routingManagerClient := clients.NewRoutingManagerClient(logger, config, httpClientMock)
  56         ranListManager := managers.NewRanListManager(logger)
  57         ranAlarmService := services.NewRanAlarmService(logger, config)
  58         ranConnectStatusChangeManager := managers.NewRanConnectStatusChangeManager(logger, rnibDataService, ranListManager, ranAlarmService)
  59
  60         e2tAssociationManager := managers.NewE2TAssociationManager(logger, rnibDataService, e2tInstancesManager, routingManagerClient, ranConnectStatusChangeManager)
  61         ranDisconnectionManager := managers.NewRanDisconnectionManager(logger, configuration.ParseConfiguration(), rnibDataService, e2tAssociationManager, ranConnectStatusChangeManager)
  62         handler := NewRanLostConnectionHandler(logger, ranDisconnectionManager)
  63
  64         return handler, readerMock, writerMock, httpClientMock
  65 }
  66
  67 func mockHttpClient(httpClientMock *mocks.HttpClientMock, isSuccessful bool) {
  68         data := models.RoutingManagerE2TDataList{models.NewRoutingManagerE2TData(e2tAddress, RanName)}
  69         marshaled, _ := json.Marshal(data)
  70         body := bytes.NewBuffer(marshaled)
  71         respBody := ioutil.NopCloser(bytes.NewBufferString(""))
  72         var respStatusCode int
  73         if isSuccessful {
  74                 respStatusCode = http.StatusCreated
  75         } else {
  76                 respStatusCode = http.StatusBadRequest
  77         }
  78         httpClientMock.On("Post", clients.DissociateRanE2TInstanceApiSuffix, "application/json", body).Return(&http.Response{StatusCode: respStatusCode, Body: respBody}, nil)
  79 }
  80
  81 func TestLostConnectionHandlerConnectingRanSuccess(t *testing.T) {
  82         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTest(true)
  83
  84         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, AssociatedE2TInstanceAddress: e2tAddress}
  85         var rnibErr error
  86         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  87         updatedNodebInfo1 := *origNodebInfo
  88         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
  89         writerMock.On("UpdateNodebInfo", &updatedNodebInfo1).Return(rnibErr)
  90         updatedNodebInfo2 := *origNodebInfo
  91         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
  92         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
  93         writerMock.On("UpdateNodebInfo", &updatedNodebInfo2).Return(rnibErr)
  94         e2tInstance := &entities.E2TInstance{Address: e2tAddress, AssociatedRanList: []string{ranName}}
  95         readerMock.On("GetE2TInstance", e2tAddress).Return(e2tInstance, nil)
  96         e2tInstanceToSave := *e2tInstance
  97         e2tInstanceToSave.AssociatedRanList = []string{}
  98         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
  99         mockHttpClient(httpClientMock, true)
 100         notificationRequest := models.NotificationRequest{RanName: ranName}
 101         handler.Handle(&notificationRequest)
 102         readerMock.AssertExpectations(t)
 103         writerMock.AssertExpectations(t)
 104         httpClientMock.AssertExpectations(t)
 105         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 106 }
 107
 108 func TestLostConnectionHandlerConnectedRanSuccess(t *testing.T) {
 109         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTest(true)
 110
 111         origNodebInfo := &entities.NodebInfo{
 112                 RanName:                      ranName,
 113                 GlobalNbId:                   &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"},
 114                 ConnectionStatus:             entities.ConnectionStatus_CONNECTED,
 115                 AssociatedE2TInstanceAddress: e2tAddress,
 116         }
 117         var rnibErr error
 118         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 119         updatedNodebInfo1 := *origNodebInfo
 120         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 121         writerMock.On("UpdateNodebInfoOnConnectionStatusInversion", &updatedNodebInfo1, StateChangeMessageChannel, ranName+"_DISCONNECTED").Return(rnibErr)
 122         updatedNodebInfo2 := *origNodebInfo
 123         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 124         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
 125         writerMock.On("UpdateNodebInfo", &updatedNodebInfo2).Return(rnibErr)
 126         e2tInstance := &entities.E2TInstance{Address: e2tAddress, AssociatedRanList: []string{ranName}}
 127         readerMock.On("GetE2TInstance", e2tAddress).Return(e2tInstance, nil)
 128         e2tInstanceToSave := *e2tInstance
 129         e2tInstanceToSave.AssociatedRanList = []string{}
 130         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 131         mockHttpClient(httpClientMock, true)
 132         notificationRequest := models.NotificationRequest{RanName: ranName}
 133         handler.Handle(&notificationRequest)
 134         readerMock.AssertExpectations(t)
 135         writerMock.AssertExpectations(t)
 136         httpClientMock.AssertExpectations(t)
 137         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 138 }
 139
 140 func TestLostConnectionHandlerRmDissociateFailure(t *testing.T) {
 141         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTest(false)
 142
 143         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, AssociatedE2TInstanceAddress: e2tAddress}
 144         var rnibErr error
 145         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 146         updatedNodebInfo1 := *origNodebInfo
 147         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 148         writerMock.On("UpdateNodebInfo", &updatedNodebInfo1).Return(rnibErr)
 149         updatedNodebInfo2 := *origNodebInfo
 150         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 151         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
 152         writerMock.On("UpdateNodebInfo", &updatedNodebInfo2).Return(rnibErr)
 153         e2tInstance := &entities.E2TInstance{Address: e2tAddress, AssociatedRanList: []string{ranName}}
 154         readerMock.On("GetE2TInstance", e2tAddress).Return(e2tInstance, nil)
 155         e2tInstanceToSave := *e2tInstance
 156         e2tInstanceToSave.AssociatedRanList = []string{}
 157         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 158         mockHttpClient(httpClientMock, false)
 159         notificationRequest := models.NotificationRequest{RanName: ranName}
 160         handler.Handle(&notificationRequest)
 161         readerMock.AssertExpectations(t)
 162         writerMock.AssertExpectations(t)
 163         httpClientMock.AssertExpectations(t)
 164         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 165 }