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         "github.com/pkg/errors"
  33         "io/ioutil"
  34         "net/http"
  35         "testing"
  36 )
  37
  38 const ranName = "test"
  39 const e2tAddress = "10.10.2.15:9800"
  40
  41 func TestLostConnectionHandlerSuccess(t *testing.T) {
  42         logger, _ := logger.InitLogger(logger.InfoLevel)
  43
  44         notificationRequest := models.NotificationRequest{RanName: ranName}
  45         ranReconnectionManagerMock := &mocks.RanReconnectionManagerMock{}
  46         ranReconnectionManagerMock.On("ReconnectRan", ranName).Return(nil)
  47         handler := NewRanLostConnectionHandler(logger, ranReconnectionManagerMock)
  48         handler.Handle(&notificationRequest)
  49         ranReconnectionManagerMock.AssertCalled(t, "ReconnectRan", ranName)
  50 }
  51
  52 func TestLostConnectionHandlerFailure(t *testing.T) {
  53         logger, _ := logger.InitLogger(logger.InfoLevel)
  54
  55         notificationRequest := models.NotificationRequest{RanName: ranName}
  56         ranReconnectionManagerMock := &mocks.RanReconnectionManagerMock{}
  57         ranReconnectionManagerMock.On("ReconnectRan", ranName).Return(errors.New("error"))
  58         handler := NewRanLostConnectionHandler(logger, ranReconnectionManagerMock)
  59         handler.Handle(&notificationRequest)
  60         ranReconnectionManagerMock.AssertCalled(t, "ReconnectRan", ranName)
  61 }
  62
  63 func setupLostConnectionHandlerTestWithRealReconnectionManager(t *testing.T, isSuccessfulHttpPost bool) (RanLostConnectionHandler, *mocks.RnibReaderMock, *mocks.RnibWriterMock, *mocks.HttpClientMock) {
  64         logger, _ := logger.InitLogger(logger.InfoLevel)
  65         config := &configuration.Configuration{RnibRetryIntervalMs: 10, MaxRnibConnectionAttempts: 3}
  66
  67         rmrMessengerMock := &mocks.RmrMessengerMock{}
  68         rmrSender := initRmrSender(rmrMessengerMock, logger)
  69         readerMock := &mocks.RnibReaderMock{}
  70         writerMock := &mocks.RnibWriterMock{}
  71         rnibDataService := services.NewRnibDataService(logger, config, readerMock, writerMock)
  72         e2tInstancesManager := managers.NewE2TInstancesManager(rnibDataService, logger)
  73         ranSetupManager := managers.NewRanSetupManager(logger, rmrSender, rnibDataService)
  74         httpClientMock := &mocks.HttpClientMock{}
  75         routingManagerClient := clients.NewRoutingManagerClient(logger, config, httpClientMock)
  76         e2tAssociationManager := managers.NewE2TAssociationManager(logger, rnibDataService, e2tInstancesManager, routingManagerClient)
  77         ranReconnectionManager := managers.NewRanReconnectionManager(logger, configuration.ParseConfiguration(), rnibDataService, ranSetupManager, e2tAssociationManager)
  78         handler := NewRanLostConnectionHandler(logger, ranReconnectionManager)
  79
  80         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20, AssociatedE2TInstanceAddress: e2tAddress}
  81         var rnibErr error
  82         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  83         updatedNodebInfo1 := *origNodebInfo
  84         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
  85         writerMock.On("UpdateNodebInfo", &updatedNodebInfo1).Return(rnibErr)
  86         updatedNodebInfo2 := *origNodebInfo
  87         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
  88         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
  89         writerMock.On("UpdateNodebInfo", &updatedNodebInfo2).Return(rnibErr)
  90         e2tInstance := &entities.E2TInstance{Address: e2tAddress, AssociatedRanList:[]string{ranName}}
  91         readerMock.On("GetE2TInstance", e2tAddress).Return(e2tInstance, nil)
  92         e2tInstanceToSave := *e2tInstance
  93         e2tInstanceToSave .AssociatedRanList = []string{}
  94         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
  95         mockHttpClient(httpClientMock, isSuccessfulHttpPost)
  96
  97         return handler, readerMock, writerMock, httpClientMock
  98 }
  99
 100 func mockHttpClient(httpClientMock *mocks.HttpClientMock, isSuccessful bool) {
 101         data := models.RoutingManagerE2TDataList{models.NewRoutingManagerE2TData(e2tAddress, RanName)}
 102         marshaled, _ := json.Marshal(data)
 103         body := bytes.NewBuffer(marshaled)
 104         respBody := ioutil.NopCloser(bytes.NewBufferString(""))
 105         var respStatusCode int
 106         if isSuccessful {
 107                 respStatusCode = http.StatusCreated
 108         } else {
 109                 respStatusCode = http.StatusBadRequest
 110         }
 111         httpClientMock.On("Post", clients.DissociateRanE2TInstanceApiSuffix, "application/json", body).Return(&http.Response{StatusCode: respStatusCode, Body: respBody}, nil)
 112 }
 113
 114 func TestLostConnectionHandlerFailureWithRealReconnectionManager(t *testing.T) {
 115         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTestWithRealReconnectionManager(t, false)
 116
 117         notificationRequest := models.NotificationRequest{RanName: ranName}
 118         handler.Handle(&notificationRequest)
 119
 120         readerMock.AssertExpectations(t)
 121         writerMock.AssertExpectations(t)
 122         httpClientMock.AssertExpectations(t)
 123         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 124 }
 125
 126 func TestLostConnectionHandlerSuccessWithRealReconnectionManager(t *testing.T) {
 127         handler, readerMock, writerMock, httpClientMock := setupLostConnectionHandlerTestWithRealReconnectionManager(t, true)
 128
 129         notificationRequest := models.NotificationRequest{RanName: ranName}
 130         handler.Handle(&notificationRequest)
 131
 132         readerMock.AssertExpectations(t)
 133         writerMock.AssertExpectations(t)
 134         httpClientMock.AssertExpectations(t)
 135         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 136 }