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
  18 package managers
  19
  20 import (
  21         "e2mgr/configuration"
  22         "e2mgr/logger"
  23         "e2mgr/mocks"
  24         "e2mgr/rmrCgo"
  25         "e2mgr/services"
  26         "e2mgr/services/rmrsender"
  27         "e2mgr/tests"
  28         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
  29         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
  30         "github.com/pkg/errors"
  31         "github.com/stretchr/testify/assert"
  32         "github.com/stretchr/testify/mock"
  33         "testing"
  34 )
  35
  36 func initRanLostConnectionTest(t *testing.T) (*logger.Logger, *mocks.RmrMessengerMock, *mocks.RnibReaderMock, *mocks.RnibWriterMock, *RanReconnectionManager) {
  37         logger, err := logger.InitLogger(logger.DebugLevel)
  38         if err != nil {
  39                 t.Errorf("#... - failed to initialize logger, error: %s", err)
  40         }
  41         config := &configuration.Configuration{RnibRetryIntervalMs: 10, MaxRnibConnectionAttempts: 3}
  42
  43         rmrMessengerMock := &mocks.RmrMessengerMock{}
  44         rmrSender := initRmrSender(rmrMessengerMock, logger)
  45
  46         readerMock := &mocks.RnibReaderMock{}
  47
  48         writerMock := &mocks.RnibWriterMock{}
  49
  50         rnibDataService := services.NewRnibDataService(logger, config, readerMock, writerMock)
  51         e2tInstancesManager := NewE2TInstancesManager(rnibDataService, logger)
  52         ranSetupManager := NewRanSetupManager(logger, rmrSender, rnibDataService)
  53         ranReconnectionManager := NewRanReconnectionManager(logger, configuration.ParseConfiguration(), rnibDataService, ranSetupManager, e2tInstancesManager)
  54         return logger, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager
  55 }
  56
  57 func initRanLostConnectionTestBasicMocks(t *testing.T) (*logger.Logger, *mocks.RmrMessengerMock, *mocks.RnibReaderMock, *mocks.RnibWriterMock, *RanReconnectionManager, *mocks.E2TInstancesManagerMock) {
  58         logger, err := logger.InitLogger(logger.DebugLevel)
  59         if err != nil {
  60                 t.Errorf("#... - failed to initialize logger, error: %s", err)
  61         }
  62         config := &configuration.Configuration{RnibRetryIntervalMs: 10, MaxRnibConnectionAttempts: 3}
  63
  64         rmrMessengerMock := &mocks.RmrMessengerMock{}
  65         rmrSender := initRmrSender(rmrMessengerMock, logger)
  66
  67         readerMock := &mocks.RnibReaderMock{}
  68
  69         writerMock := &mocks.RnibWriterMock{}
  70
  71         rnibDataService := services.NewRnibDataService(logger, config, readerMock, writerMock)
  72         e2tInstancesManagerMock := &mocks.E2TInstancesManagerMock{}
  73         ranSetupManager := NewRanSetupManager(logger, rmrSender, rnibDataService)
  74         ranReconnectionManager := NewRanReconnectionManager(logger, configuration.ParseConfiguration(), rnibDataService, ranSetupManager, e2tInstancesManagerMock)
  75         return logger, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager, e2tInstancesManagerMock
  76 }
  77
  78 func TestRanReconnectionGetNodebFailure(t *testing.T) {
  79         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
  80         ranName := "test"
  81         var nodebInfo *entities.NodebInfo
  82         readerMock.On("GetNodeb", ranName).Return(nodebInfo, common.NewInternalError(errors.New("Error")))
  83         err := ranReconnectionManager.ReconnectRan(ranName)
  84         assert.NotNil(t, err)
  85         readerMock.AssertCalled(t, "GetNodeb", ranName)
  86         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  87 }
  88
  89 func TestShutdownRanReconnection(t *testing.T) {
  90         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
  91         ranName := "test"
  92         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUT_DOWN}
  93         var rnibErr error
  94         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  95         err := ranReconnectionManager.ReconnectRan(ranName)
  96         assert.Nil(t, err)
  97         readerMock.AssertCalled(t, "GetNodeb", ranName)
  98         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  99 }
 100
 101 func TestShuttingdownRanReconnection(t *testing.T) {
 102         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 103         ranName := "test"
 104         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
 105         var rnibErr error
 106         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 107         updatedNodebInfo := *origNodebInfo
 108         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
 109         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 110         err := ranReconnectionManager.ReconnectRan(ranName)
 111         assert.Nil(t, err)
 112         readerMock.AssertCalled(t, "GetNodeb", ranName)
 113         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 114 }
 115
 116 func TestConnectingRanWithMaxAttemptsReconnectionDissociateSucceeds(t *testing.T) {
 117         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 118         ranName := "test"
 119         e2tAddress := "10.0.2.15"
 120         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20, AssociatedE2TInstanceAddress: e2tAddress}
 121         var rnibErr error
 122         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 123         updatedNodebInfo := *origNodebInfo
 124         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 125         updatedNodebInfo.AssociatedE2TInstanceAddress = ""
 126         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 127         e2tInstance := &entities.E2TInstance{Address:e2tAddress, AssociatedRanList:[]string{ranName}}
 128         readerMock.On("GetE2TInstance",e2tAddress).Return(e2tInstance, nil)
 129         e2tInstanceToSave := * e2tInstance
 130         e2tInstanceToSave .AssociatedRanList = []string{}
 131         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 132         err := ranReconnectionManager.ReconnectRan(ranName)
 133         assert.Nil(t, err)
 134         readerMock.AssertCalled(t, "GetNodeb", ranName)
 135         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 136 }
 137
 138 func TestConnectingRanWithMaxAttemptsReconnectionDissociateFails(t *testing.T) {
 139         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 140         ranName := "test"
 141         e2tAddress := "10.0.2.15"
 142         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20, AssociatedE2TInstanceAddress: e2tAddress}
 143         var rnibErr error
 144         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 145         updatedNodebInfo := *origNodebInfo
 146         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 147         updatedNodebInfo.AssociatedE2TInstanceAddress = ""
 148         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 149         e2tInstance := &entities.E2TInstance{Address:e2tAddress, AssociatedRanList:[]string{ranName}}
 150         readerMock.On("GetE2TInstance",e2tAddress).Return(e2tInstance, common.NewInternalError(errors.New("Error")))
 151         err := ranReconnectionManager.ReconnectRan(ranName)
 152         assert.NotNil(t, err)
 153         readerMock.AssertCalled(t, "GetNodeb", ranName)
 154         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 155         writerMock.AssertNotCalled(t, "SaveE2TInstance", )
 156 }
 157
 158 func TestUnconnectableRanUpdateNodebInfoFailure(t *testing.T) {
 159         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 160         ranName := "test"
 161         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
 162         var rnibErr error
 163         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 164         updatedNodebInfo := *origNodebInfo
 165         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
 166         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 167         err := ranReconnectionManager.ReconnectRan(ranName)
 168         assert.NotNil(t, err)
 169         readerMock.AssertCalled(t, "GetNodeb", ranName)
 170         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 171 }
 172
 173 func TestConnectedRanExecuteSetupSuccess(t *testing.T) {
 174         _, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 175         ranName := "test"
 176         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED, E2ApplicationProtocol: entities.E2ApplicationProtocol_ENDC_X2_SETUP_REQUEST}
 177         var rnibErr error
 178         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 179         updatedNodebInfo := *origNodebInfo
 180         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 181         updatedNodebInfo.ConnectionAttempts++
 182         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(nil)
 183         rmrMessengerMock.On("SendMsg", mock.Anything, true).Return(&rmrCgo.MBuf{}, nil)
 184         err := ranReconnectionManager.ReconnectRan(ranName)
 185         assert.Nil(t, err)
 186         readerMock.AssertCalled(t, "GetNodeb", ranName)
 187         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 188         rmrMessengerMock.AssertNumberOfCalls(t, "SendMsg", 1)
 189 }
 190
 191 func TestConnectedRanExecuteSetupFailure(t *testing.T) {
 192         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 193         ranName := "test"
 194         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 195         var rnibErr error
 196         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 197         updatedNodebInfo := *origNodebInfo
 198         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 199         updatedNodebInfo.ConnectionAttempts++
 200         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 201         err := ranReconnectionManager.ReconnectRan(ranName)
 202         assert.NotNil(t, err)
 203         readerMock.AssertCalled(t, "GetNodeb", ranName)
 204         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 205 }
 206
 207 func TestNoSetConnectionStatus(t *testing.T) {
 208         _, _, _, _, ranReconnectionManager := initRanLostConnectionTest(t)
 209         nodebInfo := &entities.NodebInfo{RanName: "ranName", GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 210         err := ranReconnectionManager.updateUnconnectableRan(nodebInfo)
 211         assert.Nil(t, err)
 212 }
 213
 214 func initRmrSender(rmrMessengerMock *mocks.RmrMessengerMock, log *logger.Logger) *rmrsender.RmrSender {
 215         rmrMessenger := rmrCgo.RmrMessenger(rmrMessengerMock)
 216         rmrMessengerMock.On("Init", tests.GetPort(), tests.MaxMsgSize, tests.Flags, log).Return(&rmrMessenger)
 217         return rmrsender.NewRmrSender(log, rmrMessenger)
 218 }