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, *mocks.E2TInstancesManagerMock) {
  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         e2tInstancesManagerMock := &mocks.E2TInstancesManagerMock{}
  52         ranSetupManager := NewRanSetupManager(logger, rmrSender, rnibDataService)
  53         ranReconnectionManager := NewRanReconnectionManager(logger, configuration.ParseConfiguration(), rnibDataService, ranSetupManager, e2tInstancesManagerMock)
  54         return logger, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager, e2tInstancesManagerMock
  55 }
  56
  57 func TestRanReconnectionGetNodebFailure(t *testing.T) {
  58         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
  59         ranName := "test"
  60         var nodebInfo *entities.NodebInfo
  61         readerMock.On("GetNodeb", ranName).Return(nodebInfo, common.NewInternalError(errors.New("Error")))
  62         err := ranReconnectionManager.ReconnectRan(ranName)
  63         assert.NotNil(t, err)
  64         readerMock.AssertCalled(t, "GetNodeb", ranName)
  65         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  66 }
  67
  68 func TestShutdownRanReconnection(t *testing.T) {
  69         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
  70         ranName := "test"
  71         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUT_DOWN}
  72         var rnibErr error
  73         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  74         err := ranReconnectionManager.ReconnectRan(ranName)
  75         assert.Nil(t, err)
  76         readerMock.AssertCalled(t, "GetNodeb", ranName)
  77         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  78 }
  79
  80 func TestShuttingdownRanReconnection(t *testing.T) {
  81         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
  82         ranName := "test"
  83         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
  84         var rnibErr error
  85         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  86         updatedNodebInfo := *origNodebInfo
  87         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
  88         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
  89         err := ranReconnectionManager.ReconnectRan(ranName)
  90         assert.Nil(t, err)
  91         readerMock.AssertCalled(t, "GetNodeb", ranName)
  92         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
  93 }
  94
  95 func TestConnectingRanWithMaxAttemptsReconnectionDeassociateSucceeds(t *testing.T) {
  96         _, _, readerMock, writerMock, ranReconnectionManager, e2tInstancesManagerMock := initRanLostConnectionTest(t)
  97         ranName := "test"
  98         e2tAddress := "10.0.2.15"
  99         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20, AssociatedE2TInstanceAddress: e2tAddress}
 100         var rnibErr error
 101         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 102         updatedNodebInfo := *origNodebInfo
 103         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 104         updatedNodebInfo.AssociatedE2TInstanceAddress = ""
 105         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 106         e2tInstancesManagerMock.On("DeassociateRan", ranName, e2tAddress).Return(nil)
 107         err := ranReconnectionManager.ReconnectRan(ranName)
 108         assert.Nil(t, err)
 109         readerMock.AssertCalled(t, "GetNodeb", ranName)
 110         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 111         e2tInstancesManagerMock.AssertCalled(t, "DeassociateRan", ranName, e2tAddress)
 112 }
 113
 114 func TestConnectingRanWithMaxAttemptsReconnectionDeassociateFails(t *testing.T) {
 115         _, _, readerMock, writerMock, ranReconnectionManager, e2tInstancesManagerMock := initRanLostConnectionTest(t)
 116         ranName := "test"
 117         e2tAddress := "10.0.2.15"
 118         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20, AssociatedE2TInstanceAddress: e2tAddress}
 119         var rnibErr error
 120         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 121         updatedNodebInfo := *origNodebInfo
 122         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 123         updatedNodebInfo.AssociatedE2TInstanceAddress = ""
 124         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 125         e2tInstancesManagerMock.On("DeassociateRan", ranName, e2tAddress).Return(common.NewInternalError(errors.New("Error")))
 126         err := ranReconnectionManager.ReconnectRan(ranName)
 127         assert.NotNil(t, err)
 128         readerMock.AssertCalled(t, "GetNodeb", ranName)
 129         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 130         e2tInstancesManagerMock.AssertCalled(t, "DeassociateRan", ranName, e2tAddress)
 131 }
 132
 133 func TestUnconnectableRanUpdateNodebInfoFailure(t *testing.T) {
 134         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 135         ranName := "test"
 136         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
 137         var rnibErr error
 138         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 139         updatedNodebInfo := *origNodebInfo
 140         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
 141         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 142         err := ranReconnectionManager.ReconnectRan(ranName)
 143         assert.NotNil(t, err)
 144         readerMock.AssertCalled(t, "GetNodeb", ranName)
 145         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 146 }
 147
 148 func TestConnectedRanExecuteSetupSuccess(t *testing.T) {
 149         _, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 150         ranName := "test"
 151         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED, E2ApplicationProtocol: entities.E2ApplicationProtocol_ENDC_X2_SETUP_REQUEST}
 152         var rnibErr error
 153         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 154         updatedNodebInfo := *origNodebInfo
 155         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 156         updatedNodebInfo.ConnectionAttempts++
 157         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(nil)
 158         rmrMessengerMock.On("SendMsg", mock.Anything).Return(&rmrCgo.MBuf{}, nil)
 159         err := ranReconnectionManager.ReconnectRan(ranName)
 160         assert.Nil(t, err)
 161         readerMock.AssertCalled(t, "GetNodeb", ranName)
 162         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 163         rmrMessengerMock.AssertNumberOfCalls(t, "SendMsg", 1)
 164 }
 165
 166 func TestConnectedRanExecuteSetupFailure(t *testing.T) {
 167         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 168         ranName := "test"
 169         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 170         var rnibErr error
 171         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 172         updatedNodebInfo := *origNodebInfo
 173         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 174         updatedNodebInfo.ConnectionAttempts++
 175         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 176         err := ranReconnectionManager.ReconnectRan(ranName)
 177         assert.NotNil(t, err)
 178         readerMock.AssertCalled(t, "GetNodeb", ranName)
 179         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 180 }
 181
 182 func TestNoSetConnectionStatus(t *testing.T) {
 183         _, _, _, _, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 184         nodebInfo := &entities.NodebInfo{RanName: "ranName", GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 185         err := ranReconnectionManager.updateUnconnectableRan(nodebInfo)
 186         assert.Nil(t, err)
 187 }
 188
 189 func initRmrSender(rmrMessengerMock *mocks.RmrMessengerMock, log *logger.Logger) *rmrsender.RmrSender {
 190         rmrMessenger := rmrCgo.RmrMessenger(rmrMessengerMock)
 191         rmrMessengerMock.On("Init", tests.GetPort(), tests.MaxMsgSize, tests.Flags, log).Return(&rmrMessenger)
 192         return rmrsender.NewRmrSender(log, rmrMessenger)
 193 }