E2Manager/managers/ran_reconnection_manager_test.go

   1 //
   2 // Copyright 2019 AT&T Intellectual Property
   3 // Copyright 2019 Nokia
   4 //
   5 // Licensed under the Apache License, Version 2.0 (the "License");
   6 // you may not use this file except in compliance with the License.
   7 // You may obtain a copy of the License at
   8 //
   9 //      http://www.apache.org/licenses/LICENSE-2.0
  10 //
  11 // Unless required by applicable law or agreed to in writing, software
  12 // distributed under the License is distributed on an "AS IS" BASIS,
  13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 // See the License for the specific language governing permissions and
  15 // limitations under the License.
  16
  17 //  This source code is part of the near-RT RIC (RAN Intelligent Controller)
  18 //  platform project (RICP).
  19
  20
  21 package managers
  22
  23 import (
  24         "e2mgr/clients"
  25         "e2mgr/configuration"
  26         "e2mgr/logger"
  27         "e2mgr/mocks"
  28         "e2mgr/rmrCgo"
  29         "e2mgr/services"
  30         "e2mgr/services/rmrsender"
  31         "e2mgr/tests"
  32         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
  33         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
  34         "github.com/pkg/errors"
  35         "github.com/stretchr/testify/assert"
  36         "github.com/stretchr/testify/mock"
  37         "testing"
  38 )
  39
  40 const ranName = "test"
  41 const e2tAddress = "10.10.2.15:9800"
  42
  43 func initRanLostConnectionTest(t *testing.T) (*logger.Logger, *mocks.RmrMessengerMock, *mocks.RnibReaderMock, *mocks.RnibWriterMock, *RanReconnectionManager, *mocks.HttpClientMock) {
  44         logger, err := logger.InitLogger(logger.DebugLevel)
  45         if err != nil {
  46                 t.Errorf("#... - failed to initialize logger, error: %s", err)
  47         }
  48         config := &configuration.Configuration{RnibRetryIntervalMs: 10, MaxRnibConnectionAttempts: 3}
  49
  50         rmrMessengerMock := &mocks.RmrMessengerMock{}
  51         rmrSender := initRmrSender(rmrMessengerMock, logger)
  52
  53         readerMock := &mocks.RnibReaderMock{}
  54
  55         writerMock := &mocks.RnibWriterMock{}
  56
  57         rnibDataService := services.NewRnibDataService(logger, config, readerMock, writerMock)
  58         e2tInstancesManager := NewE2TInstancesManager(rnibDataService, logger)
  59         ranSetupManager := NewRanSetupManager(logger, rmrSender, rnibDataService)
  60         httpClient := &mocks.HttpClientMock{}
  61         routingManagerClient := clients.NewRoutingManagerClient(logger, config, httpClient)
  62         e2tAssociationManager := NewE2TAssociationManager(logger, rnibDataService, e2tInstancesManager, routingManagerClient)
  63         ranReconnectionManager := NewRanReconnectionManager(logger, configuration.ParseConfiguration(), rnibDataService, ranSetupManager, e2tAssociationManager)
  64         return logger, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager, httpClient
  65 }
  66
  67 func TestRanReconnectionGetNodebFailure(t *testing.T) {
  68         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
  69
  70         var nodebInfo *entities.NodebInfo
  71         readerMock.On("GetNodeb", ranName).Return(nodebInfo, common.NewInternalError(errors.New("Error")))
  72         err := ranReconnectionManager.ReconnectRan(ranName)
  73         assert.NotNil(t, err)
  74         readerMock.AssertCalled(t, "GetNodeb", ranName)
  75         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  76 }
  77
  78 func TestShutdownRanReconnection(t *testing.T) {
  79         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
  80
  81         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUT_DOWN}
  82         var rnibErr error
  83         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  84         err := ranReconnectionManager.ReconnectRan(ranName)
  85         assert.Nil(t, err)
  86         readerMock.AssertCalled(t, "GetNodeb", ranName)
  87         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  88 }
  89
  90 func TestShuttingdownRanReconnection(t *testing.T) {
  91         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
  92
  93         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
  94         var rnibErr error
  95         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  96         updatedNodebInfo := *origNodebInfo
  97         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
  98         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
  99         err := ranReconnectionManager.ReconnectRan(ranName)
 100         assert.Nil(t, err)
 101         readerMock.AssertCalled(t, "GetNodeb", ranName)
 102         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 103 }
 104
 105 func TestConnectingRanWithMaxAttemptsReconnectionDissociateSucceeds(t *testing.T) {
 106         _, _, readerMock, writerMock, ranReconnectionManager, httpClient:= initRanLostConnectionTest(t)
 107
 108         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20, AssociatedE2TInstanceAddress: E2TAddress}
 109         var rnibErr error
 110         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 111         updatedNodebInfo1 := *origNodebInfo
 112         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 113         writerMock.On("UpdateNodebInfo", &updatedNodebInfo1).Return(rnibErr)
 114         updatedNodebInfo2 := *origNodebInfo
 115         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 116         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
 117         writerMock.On("UpdateNodebInfo", &updatedNodebInfo2).Return(rnibErr)
 118         e2tInstance := &entities.E2TInstance{Address: E2TAddress, AssociatedRanList:[]string{ranName}}
 119         readerMock.On("GetE2TInstance", E2TAddress).Return(e2tInstance, nil)
 120         e2tInstanceToSave := * e2tInstance
 121         e2tInstanceToSave .AssociatedRanList = []string{}
 122         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 123         mockHttpClient(httpClient, clients.DissociateRanE2TInstanceApiSuffix, true)
 124         err := ranReconnectionManager.ReconnectRan(ranName)
 125         assert.Nil(t, err)
 126         readerMock.AssertCalled(t, "GetNodeb", ranName)
 127         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 128 }
 129
 130 func TestConnectingRanWithMaxAttemptsReconnectionDissociateFails(t *testing.T) {
 131         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 132
 133         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20, AssociatedE2TInstanceAddress: e2tAddress}
 134         var rnibErr error
 135         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 136         updatedNodebInfo1 := *origNodebInfo
 137         updatedNodebInfo1.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 138         writerMock.On("UpdateNodebInfo", &updatedNodebInfo1).Return(rnibErr)
 139         updatedNodebInfo2 := *origNodebInfo
 140         updatedNodebInfo2.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 141         updatedNodebInfo2.AssociatedE2TInstanceAddress = ""
 142         writerMock.On("UpdateNodebInfo", &updatedNodebInfo2).Return(rnibErr)
 143         e2tInstance := &entities.E2TInstance{Address:e2tAddress, AssociatedRanList:[]string{ranName}}
 144         readerMock.On("GetE2TInstance",e2tAddress).Return(e2tInstance, common.NewInternalError(errors.New("Error")))
 145         err := ranReconnectionManager.ReconnectRan(ranName)
 146         assert.NotNil(t, err)
 147         readerMock.AssertCalled(t, "GetNodeb", ranName)
 148         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 149         writerMock.AssertNotCalled(t, "SaveE2TInstance", )
 150 }
 151
 152 func TestUnconnectableRanUpdateNodebInfoFailure(t *testing.T) {
 153         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 154
 155         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
 156         var rnibErr error
 157         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 158         updatedNodebInfo := *origNodebInfo
 159         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
 160         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 161         err := ranReconnectionManager.ReconnectRan(ranName)
 162         assert.NotNil(t, err)
 163         readerMock.AssertCalled(t, "GetNodeb", ranName)
 164         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 165 }
 166
 167 func TestConnectedRanExecuteSetupSuccess(t *testing.T) {
 168         _, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 169
 170         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED, E2ApplicationProtocol: entities.E2ApplicationProtocol_ENDC_X2_SETUP_REQUEST}
 171         var rnibErr error
 172         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 173         updatedNodebInfo := *origNodebInfo
 174         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 175         updatedNodebInfo.ConnectionAttempts++
 176         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(nil)
 177         rmrMessengerMock.On("SendMsg", mock.Anything, true).Return(&rmrCgo.MBuf{}, nil)
 178         err := ranReconnectionManager.ReconnectRan(ranName)
 179         assert.Nil(t, err)
 180         readerMock.AssertCalled(t, "GetNodeb", ranName)
 181         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 182         rmrMessengerMock.AssertNumberOfCalls(t, "SendMsg", 1)
 183 }
 184
 185 func TestConnectedRanExecuteSetupFailure(t *testing.T) {
 186         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 187
 188         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 189         var rnibErr error
 190         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 191         updatedNodebInfo := *origNodebInfo
 192         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 193         updatedNodebInfo.ConnectionAttempts++
 194         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 195         err := ranReconnectionManager.ReconnectRan(ranName)
 196         assert.NotNil(t, err)
 197         readerMock.AssertCalled(t, "GetNodeb", ranName)
 198         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 199 }
 200
 201 func TestNoSetConnectionStatus(t *testing.T) {
 202         _, _, _, _, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 203         nodebInfo := &entities.NodebInfo{RanName: "ranName", GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 204         err := ranReconnectionManager.updateUnconnectableRan(nodebInfo)
 205         assert.Nil(t, err)
 206 }
 207
 208 func initRmrSender(rmrMessengerMock *mocks.RmrMessengerMock, log *logger.Logger) *rmrsender.RmrSender {
 209         rmrMessenger := rmrCgo.RmrMessenger(rmrMessengerMock)
 210         rmrMessengerMock.On("Init", tests.GetPort(), tests.MaxMsgSize, tests.Flags, log).Return(&rmrMessenger)
 211         return rmrsender.NewRmrSender(log, rmrMessenger)
 212 }