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         "io/ioutil"
  32         "net/http"
  33         "testing"
  34
  35         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
  36         "github.com/stretchr/testify/mock"
  37 )
  38
  39 const (
  40         ranName    = "test"
  41         e2tAddress = "10.10.2.15:9800"
  42 )
  43
  44 func setupLostConnectionHandlerTest(isSuccessfulHttpPost bool) (*RanLostConnectionHandler, *mocks.RnibReaderMock, *mocks.RnibWriterMock, *mocks.HttpClientMock) {
  45         logger, _ := logger.InitLogger(logger.InfoLevel)
  46         config := &configuration.Configuration{
  47                 RnibRetryIntervalMs:       10,
  48                 MaxRnibConnectionAttempts: 3,
  49                 RnibWriter: configuration.RnibWriterConfig{
  50                         StateChangeMessageChannel: StateChangeMessageChannel,
  51                 },
  52         }
  53
  54         readerMock := &mocks.RnibReaderMock{}
  55         writerMock := &mocks.RnibWriterMock{}
  56         rnibDataService := services.NewRnibDataService(logger, config, readerMock, writerMock)
  57         e2tInstancesManager := managers.NewE2TInstancesManager(rnibDataService, logger)
  58         httpClientMock := &mocks.HttpClientMock{}
  59         routingManagerClient := clients.NewRoutingManagerClient(logger, config, httpClientMock)
  60         ranListManager := managers.NewRanListManager(logger, rnibDataService)
  61         ranAlarmService := services.NewRanAlarmService(logger, config)
  62         ranConnectStatusChangeManager := managers.NewRanConnectStatusChangeManager(logger, rnibDataService, ranListManager, ranAlarmService)
  63
  64         e2tAssociationManager := managers.NewE2TAssociationManager(logger, rnibDataService, e2tInstancesManager, routingManagerClient, ranConnectStatusChangeManager)
  65         ranDisconnectionManager := managers.NewRanDisconnectionManager(logger, configuration.ParseConfiguration(), rnibDataService, e2tAssociationManager, ranConnectStatusChangeManager)
  66         handler := NewRanLostConnectionHandler(logger, ranDisconnectionManager)
  67
  68         return handler, readerMock, writerMock, httpClientMock
  69 }
  70
  71 func mockHttpClient(httpClientMock *mocks.HttpClientMock, isSuccessful bool) {
  72         data := models.RoutingManagerE2TDataList{models.NewRoutingManagerE2TData(e2tAddress, RanName)}
  73         marshaled, _ := json.Marshal(data)
  74         body := bytes.NewBuffer(marshaled)
  75         respBody := ioutil.NopCloser(bytes.NewBufferString(""))
  76         var respStatusCode int
  77         if isSuccessful {
  78                 respStatusCode = http.StatusCreated
  79         } else {
  80                 respStatusCode = http.StatusBadRequest
  81         }
  82         httpClientMock.On("Post", clients.DissociateRanE2TInstanceApiSuffix, "application/json", body).Return(&http.Response{StatusCode: respStatusCode, Body: respBody}, nil)
  83 }
  84
  85 func TestLostConnectionHandlerConnectingRanSuccess(t *testing.T) {
  86         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTest(true)
  87
  88         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, AssociatedE2TInstanceAddress: e2tAddress}
  89         var rnibErr error
  90         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  91         updatedNodebInfo1 := *origNodebInfo
  92         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
  93         writerMock.On("UpdateNodebInfo", mock.Anything).Return(rnibErr)
  94         updatedNodebInfo2 := *origNodebInfo
  95         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
  96         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
  97         writerMock.On("UpdateNodebInfo", mock.Anything).Return(rnibErr)
  98         e2tInstance := &entities.E2TInstance{Address: e2tAddress, AssociatedRanList: []string{ranName}}
  99         readerMock.On("GetE2TInstance", e2tAddress).Return(e2tInstance, nil)
 100         e2tInstanceToSave := *e2tInstance
 101         e2tInstanceToSave.AssociatedRanList = []string{}
 102         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 103         mockHttpClient(httpClientMock, true)
 104         notificationRequest := models.NotificationRequest{RanName: ranName}
 105         handler.Handle(&notificationRequest)
 106         readerMock.AssertExpectations(t)
 107         writerMock.AssertExpectations(t)
 108         httpClientMock.AssertExpectations(t)
 109         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 110 }
 111
 112 func TestLostConnectionHandlerConnectedRanSuccess(t *testing.T) {
 113         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTest(true)
 114
 115         origNodebInfo := &entities.NodebInfo{
 116                 RanName:                      ranName,
 117                 GlobalNbId:                   &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"},
 118                 ConnectionStatus:             entities.ConnectionStatus_CONNECTED,
 119                 AssociatedE2TInstanceAddress: e2tAddress,
 120         }
 121         var rnibErr error
 122         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 123         updatedNodebInfo1 := *origNodebInfo
 124         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 125         writerMock.On("UpdateNodebInfoOnConnectionStatusInversion", mock.Anything, ranName+"_DISCONNECTED").Return(rnibErr)
 126         updatedNodebInfo2 := *origNodebInfo
 127         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 128         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
 129         writerMock.On("UpdateNodebInfo", mock.Anything).Return(rnibErr)
 130         e2tInstance := &entities.E2TInstance{Address: e2tAddress, AssociatedRanList: []string{ranName}}
 131         readerMock.On("GetE2TInstance", e2tAddress).Return(e2tInstance, nil)
 132         e2tInstanceToSave := *e2tInstance
 133         e2tInstanceToSave.AssociatedRanList = []string{}
 134         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 135         mockHttpClient(httpClientMock, true)
 136         notificationRequest := models.NotificationRequest{RanName: ranName}
 137         handler.Handle(&notificationRequest)
 138         readerMock.AssertExpectations(t)
 139         writerMock.AssertExpectations(t)
 140         httpClientMock.AssertExpectations(t)
 141         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 142 }
 143
 144 func TestLostConnectionHandlerRmDissociateFailure(t *testing.T) {
 145         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTest(false)
 146
 147         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, AssociatedE2TInstanceAddress: e2tAddress}
 148         var rnibErr error
 149         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 150         updatedNodebInfo1 := *origNodebInfo
 151         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 152         writerMock.On("UpdateNodebInfo", mock.Anything).Return(rnibErr)
 153         updatedNodebInfo2 := *origNodebInfo
 154         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 155         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
 156         writerMock.On("UpdateNodebInfo", mock.Anything).Return(rnibErr)
 157         e2tInstance := &entities.E2TInstance{Address: e2tAddress, AssociatedRanList: []string{ranName}}
 158         readerMock.On("GetE2TInstance", e2tAddress).Return(e2tInstance, nil)
 159         e2tInstanceToSave := *e2tInstance
 160         e2tInstanceToSave.AssociatedRanList = []string{}
 161         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 162         mockHttpClient(httpClientMock, false)
 163         notificationRequest := models.NotificationRequest{RanName: ranName}
 164         handler.Handle(&notificationRequest)
 165         readerMock.AssertExpectations(t)
 166         writerMock.AssertExpectations(t)
 167         httpClientMock.AssertExpectations(t)
 168         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 169 }