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         InfoLevel := int8(3)
  46         logger, _ := logger.InitLogger(InfoLevel)
  47         config := &configuration.Configuration{
  48                 RnibRetryIntervalMs:       10,
  49                 MaxRnibConnectionAttempts: 3,
  50                 RnibWriter: configuration.RnibWriterConfig{
  51                         StateChangeMessageChannel: StateChangeMessageChannel,
  52                 },
  53         }
  54
  55         readerMock := &mocks.RnibReaderMock{}
  56         writerMock := &mocks.RnibWriterMock{}
  57         rnibDataService := services.NewRnibDataService(logger, config, readerMock, writerMock)
  58         e2tInstancesManager := managers.NewE2TInstancesManager(rnibDataService, logger)
  59         httpClientMock := &mocks.HttpClientMock{}
  60         routingManagerClient := clients.NewRoutingManagerClient(logger, config, httpClientMock)
  61         ranListManager := managers.NewRanListManager(logger, rnibDataService)
  62         ranAlarmService := services.NewRanAlarmService(logger, config)
  63         ranConnectStatusChangeManager := managers.NewRanConnectStatusChangeManager(logger, rnibDataService, ranListManager, ranAlarmService)
  64
  65         e2tAssociationManager := managers.NewE2TAssociationManager(logger, rnibDataService, e2tInstancesManager, routingManagerClient, ranConnectStatusChangeManager)
  66         ranDisconnectionManager := managers.NewRanDisconnectionManager(logger, configuration.ParseConfiguration(), rnibDataService, e2tAssociationManager, ranConnectStatusChangeManager)
  67         handler := NewRanLostConnectionHandler(logger, ranDisconnectionManager)
  68
  69         return handler, readerMock, writerMock, httpClientMock
  70 }
  71
  72 func mockHttpClient(httpClientMock *mocks.HttpClientMock, isSuccessful bool) {
  73         data := models.RoutingManagerE2TDataList{models.NewRoutingManagerE2TData(e2tAddress, RanName)}
  74         marshaled, _ := json.Marshal(data)
  75         body := bytes.NewBuffer(marshaled)
  76         respBody := ioutil.NopCloser(bytes.NewBufferString(""))
  77         var respStatusCode int
  78         if isSuccessful {
  79                 respStatusCode = http.StatusCreated
  80         } else {
  81                 respStatusCode = http.StatusBadRequest
  82         }
  83         httpClientMock.On("Post", clients.DissociateRanE2TInstanceApiSuffix, "application/json", body).Return(&http.Response{StatusCode: respStatusCode, Body: respBody}, nil)
  84 }
  85
  86 func TestLostConnectionHandlerConnectingRanSuccess(t *testing.T) {
  87         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTest(true)
  88
  89         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, AssociatedE2TInstanceAddress: e2tAddress}
  90         var rnibErr error
  91         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  92         updatedNodebInfo1 := *origNodebInfo
  93         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
  94         writerMock.On("UpdateNodebInfo", mock.Anything).Return(rnibErr)
  95         updatedNodebInfo2 := *origNodebInfo
  96         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
  97         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
  98         writerMock.On("UpdateNodebInfo", mock.Anything).Return(rnibErr)
  99         e2tInstance := &entities.E2TInstance{Address: e2tAddress, AssociatedRanList: []string{ranName}}
 100         readerMock.On("GetE2TInstance", e2tAddress).Return(e2tInstance, nil)
 101         e2tInstanceToSave := *e2tInstance
 102         e2tInstanceToSave.AssociatedRanList = []string{}
 103         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 104         mockHttpClient(httpClientMock, true)
 105         notificationRequest := models.NotificationRequest{RanName: ranName}
 106         handler.Handle(&notificationRequest)
 107         readerMock.AssertExpectations(t)
 108         writerMock.AssertExpectations(t)
 109         httpClientMock.AssertExpectations(t)
 110         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 111 }
 112
 113 func TestLostConnectionHandlerConnectedRanSuccess(t *testing.T) {
 114         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTest(true)
 115
 116         origNodebInfo := &entities.NodebInfo{
 117                 RanName:                      ranName,
 118                 GlobalNbId:                   &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"},
 119                 ConnectionStatus:             entities.ConnectionStatus_CONNECTED,
 120                 AssociatedE2TInstanceAddress: e2tAddress,
 121         }
 122         var rnibErr error
 123         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 124         updatedNodebInfo1 := *origNodebInfo
 125         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 126         writerMock.On("UpdateNodebInfoOnConnectionStatusInversion", mock.Anything, ranName+"_DISCONNECTED").Return(rnibErr)
 127         updatedNodebInfo2 := *origNodebInfo
 128         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 129         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
 130         writerMock.On("UpdateNodebInfo", mock.Anything).Return(rnibErr)
 131         e2tInstance := &entities.E2TInstance{Address: e2tAddress, AssociatedRanList: []string{ranName}}
 132         readerMock.On("GetE2TInstance", e2tAddress).Return(e2tInstance, nil)
 133         e2tInstanceToSave := *e2tInstance
 134         e2tInstanceToSave.AssociatedRanList = []string{}
 135         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 136         mockHttpClient(httpClientMock, true)
 137         notificationRequest := models.NotificationRequest{RanName: ranName}
 138         handler.Handle(&notificationRequest)
 139         readerMock.AssertExpectations(t)
 140         writerMock.AssertExpectations(t)
 141         httpClientMock.AssertExpectations(t)
 142         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 143 }
 144
 145 func TestLostConnectionHandlerRmDissociateFailure(t *testing.T) {
 146         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTest(false)
 147
 148         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, AssociatedE2TInstanceAddress: e2tAddress}
 149         var rnibErr error
 150         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 151         updatedNodebInfo1 := *origNodebInfo
 152         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 153         writerMock.On("UpdateNodebInfo", mock.Anything).Return(rnibErr)
 154         updatedNodebInfo2 := *origNodebInfo
 155         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 156         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
 157         writerMock.On("UpdateNodebInfo", mock.Anything).Return(rnibErr)
 158         e2tInstance := &entities.E2TInstance{Address: e2tAddress, AssociatedRanList: []string{ranName}}
 159         readerMock.On("GetE2TInstance", e2tAddress).Return(e2tInstance, nil)
 160         e2tInstanceToSave := *e2tInstance
 161         e2tInstanceToSave.AssociatedRanList = []string{}
 162         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 163         mockHttpClient(httpClientMock, false)
 164         notificationRequest := models.NotificationRequest{RanName: ranName}
 165         handler.Handle(&notificationRequest)
 166         readerMock.AssertExpectations(t)
 167         writerMock.AssertExpectations(t)
 168         httpClientMock.AssertExpectations(t)
 169         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 170 }