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         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 105         e2tInstancesManagerMock.On("DeassociateRan", ranName, e2tAddress).Return(nil)
 106         err := ranReconnectionManager.ReconnectRan(ranName)
 107         assert.Nil(t, err)
 108         readerMock.AssertCalled(t, "GetNodeb", ranName)
 109         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 110         e2tInstancesManagerMock.AssertCalled(t, "DeassociateRan", ranName, e2tAddress)
 111 }
 112
 113 func TestConnectingRanWithMaxAttemptsReconnectionDeassociateFails(t *testing.T) {
 114         _, _, readerMock, writerMock, ranReconnectionManager, e2tInstancesManagerMock := initRanLostConnectionTest(t)
 115         ranName := "test"
 116         e2tAddress := "10.0.2.15"
 117         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20, AssociatedE2TInstanceAddress: e2tAddress}
 118         var rnibErr error
 119         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 120         updatedNodebInfo := *origNodebInfo
 121         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 122         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 123         e2tInstancesManagerMock.On("DeassociateRan", ranName, e2tAddress).Return(common.NewInternalError(errors.New("Error")))
 124         err := ranReconnectionManager.ReconnectRan(ranName)
 125         assert.NotNil(t, err)
 126         readerMock.AssertCalled(t, "GetNodeb", ranName)
 127         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 128         e2tInstancesManagerMock.AssertCalled(t, "DeassociateRan", ranName, e2tAddress)
 129 }
 130
 131 func TestUnconnectableRanUpdateNodebInfoFailure(t *testing.T) {
 132         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 133         ranName := "test"
 134         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
 135         var rnibErr error
 136         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 137         updatedNodebInfo := *origNodebInfo
 138         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
 139         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 140         err := ranReconnectionManager.ReconnectRan(ranName)
 141         assert.NotNil(t, err)
 142         readerMock.AssertCalled(t, "GetNodeb", ranName)
 143         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 144 }
 145
 146 func TestConnectedRanExecuteSetupSuccess(t *testing.T) {
 147         _, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 148         ranName := "test"
 149         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED, E2ApplicationProtocol: entities.E2ApplicationProtocol_ENDC_X2_SETUP_REQUEST}
 150         var rnibErr error
 151         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 152         updatedNodebInfo := *origNodebInfo
 153         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 154         updatedNodebInfo.ConnectionAttempts++
 155         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(nil)
 156         rmrMessengerMock.On("SendMsg", mock.Anything).Return(&rmrCgo.MBuf{}, nil)
 157         err := ranReconnectionManager.ReconnectRan(ranName)
 158         assert.Nil(t, err)
 159         readerMock.AssertCalled(t, "GetNodeb", ranName)
 160         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 161         rmrMessengerMock.AssertNumberOfCalls(t, "SendMsg", 1)
 162 }
 163
 164 func TestConnectedRanExecuteSetupFailure(t *testing.T) {
 165         _, _, readerMock, writerMock, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 166         ranName := "test"
 167         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 168         var rnibErr error
 169         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 170         updatedNodebInfo := *origNodebInfo
 171         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 172         updatedNodebInfo.ConnectionAttempts++
 173         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 174         err := ranReconnectionManager.ReconnectRan(ranName)
 175         assert.NotNil(t, err)
 176         readerMock.AssertCalled(t, "GetNodeb", ranName)
 177         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 178 }
 179
 180 func TestUnnecessaryUpdateNodebInfoStatus(t *testing.T) {
 181         _, _, _, _, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 182         nodebInfo := &entities.NodebInfo{RanName: "ranName", GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 183         err := ranReconnectionManager.updateNodebInfoStatus(nodebInfo, entities.ConnectionStatus_CONNECTED)
 184         assert.Nil(t, err)
 185 }
 186
 187 func TestNoSetConnectionStatus(t *testing.T) {
 188         _, _, _, _, ranReconnectionManager, _ := initRanLostConnectionTest(t)
 189         nodebInfo := &entities.NodebInfo{RanName: "ranName", GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 190         err := ranReconnectionManager.setConnectionStatusOfUnconnectableRan(nodebInfo)
 191         assert.Nil(t, err)
 192 }
 193
 194 func initRmrSender(rmrMessengerMock *mocks.RmrMessengerMock, log *logger.Logger) *rmrsender.RmrSender {
 195         rmrMessenger := rmrCgo.RmrMessenger(rmrMessengerMock)
 196         rmrMessengerMock.On("Init", tests.GetPort(), tests.MaxMsgSize, tests.Flags, log).Return(&rmrMessenger)
 197         return rmrsender.NewRmrSender(log, rmrMessenger)
 198 }