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/configuration"
  25         "e2mgr/logger"
  26         "e2mgr/mocks"
  27         "e2mgr/rmrCgo"
  28         "e2mgr/services"
  29         "e2mgr/services/rmrsender"
  30         "e2mgr/tests"
  31         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
  32         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
  33         "github.com/pkg/errors"
  34         "github.com/stretchr/testify/assert"
  35         "github.com/stretchr/testify/mock"
  36         "testing"
  37 )
  38
  39 func initRanLostConnectionTest(t *testing.T) (*logger.Logger, *mocks.RmrMessengerMock, *mocks.RnibReaderMock, *mocks.RnibWriterMock, *RanReconnectionManager) {
  40         logger, err := logger.InitLogger(logger.DebugLevel)
  41         if err != nil {
  42                 t.Errorf("#... - failed to initialize logger, error: %s", err)
  43         }
  44         config := &configuration.Configuration{RnibRetryIntervalMs: 10, MaxRnibConnectionAttempts: 3}
  45
  46         rmrMessengerMock := &mocks.RmrMessengerMock{}
  47         rmrSender := initRmrSender(rmrMessengerMock, logger)
  48
  49         readerMock := &mocks.RnibReaderMock{}
  50
  51         writerMock := &mocks.RnibWriterMock{}
  52
  53         rnibDataService := services.NewRnibDataService(logger, config, readerMock, writerMock)
  54         e2tInstancesManager := NewE2TInstancesManager(rnibDataService, logger)
  55         ranSetupManager := NewRanSetupManager(logger, rmrSender, rnibDataService)
  56         ranReconnectionManager := NewRanReconnectionManager(logger, configuration.ParseConfiguration(), rnibDataService, ranSetupManager, e2tInstancesManager)
  57         return logger, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager
  58 }
  59
  60 func initRanLostConnectionTestBasicMocks(t *testing.T) (*logger.Logger, *mocks.RmrMessengerMock, *mocks.RnibReaderMock, *mocks.RnibWriterMock, *RanReconnectionManager, *mocks.E2TInstancesManagerMock) {
  61         logger, err := logger.InitLogger(logger.DebugLevel)
  62         if err != nil {
  63                 t.Errorf("#... - failed to initialize logger, error: %s", err)
  64         }
  65         config := &configuration.Configuration{RnibRetryIntervalMs: 10, MaxRnibConnectionAttempts: 3}
  66
  67         rmrMessengerMock := &mocks.RmrMessengerMock{}
  68         rmrSender := initRmrSender(rmrMessengerMock, logger)
  69
  70         readerMock := &mocks.RnibReaderMock{}
  71
  72         writerMock := &mocks.RnibWriterMock{}
  73
  74         rnibDataService := services.NewRnibDataService(logger, config, readerMock, writerMock)
  75         e2tInstancesManagerMock := &mocks.E2TInstancesManagerMock{}
  76         ranSetupManager := NewRanSetupManager(logger, rmrSender, rnibDataService)
  77         ranReconnectionManager := NewRanReconnectionManager(logger, configuration.ParseConfiguration(), rnibDataService, ranSetupManager, e2tInstancesManagerMock)
  78         return logger, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager, e2tInstancesManagerMock
  79 }
  80
  81 func TestRanReconnectionGetNodebFailure(t *testing.T) {
  82         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
  83         ranName := "test"
  84         var nodebInfo *entities.NodebInfo
  85         readerMock.On("GetNodeb", ranName).Return(nodebInfo, common.NewInternalError(errors.New("Error")))
  86         err := ranReconnectionManager.ReconnectRan(ranName)
  87         assert.NotNil(t, err)
  88         readerMock.AssertCalled(t, "GetNodeb", ranName)
  89         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  90 }
  91
  92 func TestShutdownRanReconnection(t *testing.T) {
  93         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
  94         ranName := "test"
  95         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUT_DOWN}
  96         var rnibErr error
  97         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  98         err := ranReconnectionManager.ReconnectRan(ranName)
  99         assert.Nil(t, err)
 100         readerMock.AssertCalled(t, "GetNodeb", ranName)
 101         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
 102 }
 103
 104 func TestShuttingdownRanReconnection(t *testing.T) {
 105         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 106         ranName := "test"
 107         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
 108         var rnibErr error
 109         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 110         updatedNodebInfo := *origNodebInfo
 111         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
 112         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 113         err := ranReconnectionManager.ReconnectRan(ranName)
 114         assert.Nil(t, err)
 115         readerMock.AssertCalled(t, "GetNodeb", ranName)
 116         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 117 }
 118
 119 func TestConnectingRanWithMaxAttemptsReconnectionDissociateSucceeds(t *testing.T) {
 120         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 121         ranName := "test"
 122         e2tAddress := "10.0.2.15"
 123         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20, AssociatedE2TInstanceAddress: e2tAddress}
 124         var rnibErr error
 125         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 126         updatedNodebInfo := *origNodebInfo
 127         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 128         updatedNodebInfo.AssociatedE2TInstanceAddress = ""
 129         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).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         err := ranReconnectionManager.ReconnectRan(ranName)
 136         assert.Nil(t, err)
 137         readerMock.AssertCalled(t, "GetNodeb", ranName)
 138         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 139 }
 140
 141 func TestConnectingRanWithMaxAttemptsReconnectionDissociateFails(t *testing.T) {
 142         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 143         ranName := "test"
 144         e2tAddress := "10.0.2.15"
 145         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20, AssociatedE2TInstanceAddress: e2tAddress}
 146         var rnibErr error
 147         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 148         updatedNodebInfo := *origNodebInfo
 149         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 150         updatedNodebInfo.AssociatedE2TInstanceAddress = ""
 151         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 152         e2tInstance := &entities.E2TInstance{Address:e2tAddress, AssociatedRanList:[]string{ranName}}
 153         readerMock.On("GetE2TInstance",e2tAddress).Return(e2tInstance, common.NewInternalError(errors.New("Error")))
 154         err := ranReconnectionManager.ReconnectRan(ranName)
 155         assert.NotNil(t, err)
 156         readerMock.AssertCalled(t, "GetNodeb", ranName)
 157         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 158         writerMock.AssertNotCalled(t, "SaveE2TInstance", )
 159 }
 160
 161 func TestUnconnectableRanUpdateNodebInfoFailure(t *testing.T) {
 162         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 163         ranName := "test"
 164         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
 165         var rnibErr error
 166         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 167         updatedNodebInfo := *origNodebInfo
 168         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
 169         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 170         err := ranReconnectionManager.ReconnectRan(ranName)
 171         assert.NotNil(t, err)
 172         readerMock.AssertCalled(t, "GetNodeb", ranName)
 173         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 174 }
 175
 176 func TestConnectedRanExecuteSetupSuccess(t *testing.T) {
 177         _, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 178         ranName := "test"
 179         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED, E2ApplicationProtocol: entities.E2ApplicationProtocol_ENDC_X2_SETUP_REQUEST}
 180         var rnibErr error
 181         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 182         updatedNodebInfo := *origNodebInfo
 183         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 184         updatedNodebInfo.ConnectionAttempts++
 185         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(nil)
 186         rmrMessengerMock.On("SendMsg", mock.Anything, true).Return(&rmrCgo.MBuf{}, nil)
 187         err := ranReconnectionManager.ReconnectRan(ranName)
 188         assert.Nil(t, err)
 189         readerMock.AssertCalled(t, "GetNodeb", ranName)
 190         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 191         rmrMessengerMock.AssertNumberOfCalls(t, "SendMsg", 1)
 192 }
 193
 194 func TestConnectedRanExecuteSetupFailure(t *testing.T) {
 195         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 196         ranName := "test"
 197         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 198         var rnibErr error
 199         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 200         updatedNodebInfo := *origNodebInfo
 201         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 202         updatedNodebInfo.ConnectionAttempts++
 203         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 204         err := ranReconnectionManager.ReconnectRan(ranName)
 205         assert.NotNil(t, err)
 206         readerMock.AssertCalled(t, "GetNodeb", ranName)
 207         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 208 }
 209
 210 func TestNoSetConnectionStatus(t *testing.T) {
 211         _, _, _, _, ranReconnectionManager := initRanLostConnectionTest(t)
 212         nodebInfo := &entities.NodebInfo{RanName: "ranName", GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 213         err := ranReconnectionManager.updateUnconnectableRan(nodebInfo)
 214         assert.Nil(t, err)
 215 }
 216
 217 func initRmrSender(rmrMessengerMock *mocks.RmrMessengerMock, log *logger.Logger) *rmrsender.RmrSender {
 218         rmrMessenger := rmrCgo.RmrMessenger(rmrMessengerMock)
 219         rmrMessengerMock.On("Init", tests.GetPort(), tests.MaxMsgSize, tests.Flags, log).Return(&rmrMessenger)
 220         return rmrsender.NewRmrSender(log, rmrMessenger)
 221 }