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 func initRanLostConnectionTest(t *testing.T) (*logger.Logger, *mocks.RmrMessengerMock, *mocks.RnibReaderMock, *mocks.RnibWriterMock, *RanReconnectionManager, *mocks.HttpClientMock) {
  41         logger, err := logger.InitLogger(logger.DebugLevel)
  42         if err != nil {
  43                 t.Errorf("#... - failed to initialize logger, error: %s", err)
  44         }
  45         config := &configuration.Configuration{RnibRetryIntervalMs: 10, MaxRnibConnectionAttempts: 3}
  46
  47         rmrMessengerMock := &mocks.RmrMessengerMock{}
  48         rmrSender := initRmrSender(rmrMessengerMock, logger)
  49
  50         readerMock := &mocks.RnibReaderMock{}
  51
  52         writerMock := &mocks.RnibWriterMock{}
  53
  54         rnibDataService := services.NewRnibDataService(logger, config, readerMock, writerMock)
  55         e2tInstancesManager := NewE2TInstancesManager(rnibDataService, logger)
  56         ranSetupManager := NewRanSetupManager(logger, rmrSender, rnibDataService)
  57         httpClient := &mocks.HttpClientMock{}
  58         routingManagerClient := clients.NewRoutingManagerClient(logger, config, httpClient)
  59         e2tAssociationManager := NewE2TAssociationManager(logger, rnibDataService, e2tInstancesManager, routingManagerClient)
  60         ranReconnectionManager := NewRanReconnectionManager(logger, configuration.ParseConfiguration(), rnibDataService, ranSetupManager, e2tAssociationManager)
  61         return logger, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager, httpClient
  62 }
  63
  64 func TestRanReconnectionGetNodebFailure(t *testing.T) {
  65         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
  66         ranName := "test"
  67         var nodebInfo *entities.NodebInfo
  68         readerMock.On("GetNodeb", ranName).Return(nodebInfo, common.NewInternalError(errors.New("Error")))
  69         err := ranReconnectionManager.ReconnectRan(ranName)
  70         assert.NotNil(t, err)
  71         readerMock.AssertCalled(t, "GetNodeb", ranName)
  72         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  73 }
  74
  75 func TestShutdownRanReconnection(t *testing.T) {
  76         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
  77         ranName := "test"
  78         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUT_DOWN}
  79         var rnibErr error
  80         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  81         err := ranReconnectionManager.ReconnectRan(ranName)
  82         assert.Nil(t, err)
  83         readerMock.AssertCalled(t, "GetNodeb", ranName)
  84         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  85 }
  86
  87 func TestShuttingdownRanReconnection(t *testing.T) {
  88         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
  89         ranName := "test"
  90         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
  91         var rnibErr error
  92         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  93         updatedNodebInfo := *origNodebInfo
  94         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
  95         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
  96         err := ranReconnectionManager.ReconnectRan(ranName)
  97         assert.Nil(t, err)
  98         readerMock.AssertCalled(t, "GetNodeb", ranName)
  99         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 100 }
 101
 102 func TestConnectingRanWithMaxAttemptsReconnectionDissociateSucceeds(t *testing.T) {
 103         _, _, readerMock, writerMock, ranReconnectionManager, httpClient:= initRanLostConnectionTest(t)
 104         ranName := "test"
 105         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20, AssociatedE2TInstanceAddress: E2TAddress}
 106         var rnibErr error
 107         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 108         updatedNodebInfo := *origNodebInfo
 109         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 110         updatedNodebInfo.AssociatedE2TInstanceAddress = ""
 111         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 112         e2tInstance := &entities.E2TInstance{Address: E2TAddress, AssociatedRanList:[]string{ranName}}
 113         readerMock.On("GetE2TInstance", E2TAddress).Return(e2tInstance, nil)
 114         e2tInstanceToSave := * e2tInstance
 115         e2tInstanceToSave .AssociatedRanList = []string{}
 116         writerMock.On("SaveE2TInstance", &e2tInstanceToSave).Return(nil)
 117         mockHttpClient(httpClient, clients.DissociateRanE2TInstanceApiSuffix, true)
 118         err := ranReconnectionManager.ReconnectRan(ranName)
 119         assert.Nil(t, err)
 120         readerMock.AssertCalled(t, "GetNodeb", ranName)
 121         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 122 }
 123
 124 func TestConnectingRanWithMaxAttemptsReconnectionDissociateFails(t *testing.T) {
 125         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 126         ranName := "test"
 127         e2tAddress := "10.0.2.15"
 128         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20, AssociatedE2TInstanceAddress: e2tAddress}
 129         var rnibErr error
 130         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 131         updatedNodebInfo := *origNodebInfo
 132         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 133         updatedNodebInfo.AssociatedE2TInstanceAddress = ""
 134         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 135         e2tInstance := &entities.E2TInstance{Address:e2tAddress, AssociatedRanList:[]string{ranName}}
 136         readerMock.On("GetE2TInstance",e2tAddress).Return(e2tInstance, common.NewInternalError(errors.New("Error")))
 137         err := ranReconnectionManager.ReconnectRan(ranName)
 138         assert.NotNil(t, err)
 139         readerMock.AssertCalled(t, "GetNodeb", ranName)
 140         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 2)
 141         writerMock.AssertNotCalled(t, "SaveE2TInstance", )
 142 }
 143
 144 func TestUnconnectableRanUpdateNodebInfoFailure(t *testing.T) {
 145         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 146         ranName := "test"
 147         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
 148         var rnibErr error
 149         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 150         updatedNodebInfo := *origNodebInfo
 151         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
 152         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 153         err := ranReconnectionManager.ReconnectRan(ranName)
 154         assert.NotNil(t, err)
 155         readerMock.AssertCalled(t, "GetNodeb", ranName)
 156         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 157 }
 158
 159 func TestConnectedRanExecuteSetupSuccess(t *testing.T) {
 160         _, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 161         ranName := "test"
 162         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED, E2ApplicationProtocol: entities.E2ApplicationProtocol_ENDC_X2_SETUP_REQUEST}
 163         var rnibErr error
 164         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 165         updatedNodebInfo := *origNodebInfo
 166         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 167         updatedNodebInfo.ConnectionAttempts++
 168         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(nil)
 169         rmrMessengerMock.On("SendMsg", mock.Anything, true).Return(&rmrCgo.MBuf{}, nil)
 170         err := ranReconnectionManager.ReconnectRan(ranName)
 171         assert.Nil(t, err)
 172         readerMock.AssertCalled(t, "GetNodeb", ranName)
 173         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 174         rmrMessengerMock.AssertNumberOfCalls(t, "SendMsg", 1)
 175 }
 176
 177 func TestConnectedRanExecuteSetupFailure(t *testing.T) {
 178         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 179         ranName := "test"
 180         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 181         var rnibErr error
 182         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 183         updatedNodebInfo := *origNodebInfo
 184         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 185         updatedNodebInfo.ConnectionAttempts++
 186         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 187         err := ranReconnectionManager.ReconnectRan(ranName)
 188         assert.NotNil(t, err)
 189         readerMock.AssertCalled(t, "GetNodeb", ranName)
 190         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 191 }
 192
 193 func TestNoSetConnectionStatus(t *testing.T) {
 194         _, _, _, _, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 195         nodebInfo := &entities.NodebInfo{RanName: "ranName", GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 196         err := ranReconnectionManager.updateUnconnectableRan(nodebInfo)
 197         assert.Nil(t, err)
 198 }
 199
 200 func initRmrSender(rmrMessengerMock *mocks.RmrMessengerMock, log *logger.Logger) *rmrsender.RmrSender {
 201         rmrMessenger := rmrCgo.RmrMessenger(rmrMessengerMock)
 202         rmrMessengerMock.On("Init", tests.GetPort(), tests.MaxMsgSize, tests.Flags, log).Return(&rmrMessenger)
 203         return rmrsender.NewRmrSender(log, rmrMessenger)
 204 }