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