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/configuration"
  25         "e2mgr/logger"
  26         "e2mgr/mocks"
  27         "e2mgr/rNibWriter"
  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         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/reader"
  35         "github.com/pkg/errors"
  36         "github.com/stretchr/testify/assert"
  37         "github.com/stretchr/testify/mock"
  38         "testing"
  39 )
  40
  41 func initRanLostConnectionTest(t *testing.T) (*logger.Logger, *mocks.RmrMessengerMock, *mocks.RnibReaderMock, *mocks.RnibWriterMock, *RanReconnectionManager) {
  42         logger, err := logger.InitLogger(logger.DebugLevel)
  43         if err != nil {
  44                 t.Errorf("#... - failed to initialize logger, error: %s", err)
  45         }
  46         config := &configuration.Configuration{RnibRetryIntervalMs: 10, MaxRnibConnectionAttempts: 3}
  47
  48         rmrMessengerMock := &mocks.RmrMessengerMock{}
  49         rmrSender := initRmrSender(rmrMessengerMock, logger)
  50
  51         readerMock := &mocks.RnibReaderMock{}
  52         rnibReaderProvider := func() reader.RNibReader {
  53                 return readerMock
  54         }
  55         writerMock := &mocks.RnibWriterMock{}
  56         rnibWriterProvider := func() rNibWriter.RNibWriter {
  57                 return writerMock
  58         }
  59         rnibDataService := services.NewRnibDataService(logger, config, rnibReaderProvider, rnibWriterProvider)
  60         ranSetupManager := NewRanSetupManager(logger, rmrSender, rnibDataService)
  61         ranReconnectionManager := NewRanReconnectionManager(logger, configuration.ParseConfiguration(), rnibDataService, ranSetupManager)
  62         return logger, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager
  63 }
  64
  65 func TestRanReconnectionGetNodebFailure(t *testing.T) {
  66         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
  67         ranName := "test"
  68         var nodebInfo *entities.NodebInfo
  69         readerMock.On("GetNodeb", ranName).Return(nodebInfo, common.NewInternalError(errors.New("Error")))
  70         err := ranReconnectionManager.ReconnectRan(ranName)
  71         assert.NotNil(t, err)
  72         readerMock.AssertCalled(t, "GetNodeb", ranName)
  73         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  74 }
  75
  76 func TestShutdownRanReconnection(t *testing.T) {
  77         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
  78         ranName := "test"
  79         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUT_DOWN}
  80         var rnibErr error
  81         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  82         err := ranReconnectionManager.ReconnectRan(ranName)
  83         assert.Nil(t, err)
  84         readerMock.AssertCalled(t, "GetNodeb", ranName)
  85         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  86 }
  87
  88 func TestShuttingdownRanReconnection(t *testing.T) {
  89         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
  90         ranName := "test"
  91         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
  92         var rnibErr error
  93         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  94         updatedNodebInfo := *origNodebInfo
  95         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
  96         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
  97         err := ranReconnectionManager.ReconnectRan(ranName)
  98         assert.Nil(t, err)
  99         readerMock.AssertCalled(t, "GetNodeb", ranName)
 100         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 101 }
 102
 103 func TestConnectingRanWithMaxAttemptsReconnection(t *testing.T) {
 104         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 105         ranName := "test"
 106         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20}
 107         var rnibErr error
 108         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 109         updatedNodebInfo := *origNodebInfo
 110         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 111         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 112         err := ranReconnectionManager.ReconnectRan(ranName)
 113         assert.Nil(t, err)
 114         readerMock.AssertCalled(t, "GetNodeb", ranName)
 115         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 116 }
 117
 118 func TestUnconnectableRanUpdateNodebInfoFailure(t *testing.T) {
 119         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 120         ranName := "test"
 121         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
 122         var rnibErr error
 123         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 124         updatedNodebInfo := *origNodebInfo
 125         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
 126         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 127         err := ranReconnectionManager.ReconnectRan(ranName)
 128         assert.NotNil(t, err)
 129         readerMock.AssertCalled(t, "GetNodeb", ranName)
 130         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 131 }
 132
 133 func TestConnectedRanExecuteSetupSuccess(t *testing.T) {
 134         _, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 135         ranName := "test"
 136         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED, E2ApplicationProtocol: entities.E2ApplicationProtocol_ENDC_X2_SETUP_REQUEST}
 137         var rnibErr error
 138         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 139         updatedNodebInfo := *origNodebInfo
 140         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 141         updatedNodebInfo.ConnectionAttempts++
 142         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(nil)
 143         rmrMessengerMock.On("SendMsg", mock.Anything).Return(&rmrCgo.MBuf{}, nil)
 144         err := ranReconnectionManager.ReconnectRan(ranName)
 145         assert.Nil(t, err)
 146         readerMock.AssertCalled(t, "GetNodeb", ranName)
 147         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 148         rmrMessengerMock.AssertNumberOfCalls(t, "SendMsg", 1)
 149 }
 150
 151 func TestConnectedRanExecuteSetupFailure(t *testing.T) {
 152         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 153         ranName := "test"
 154         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 155         var rnibErr error
 156         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 157         updatedNodebInfo := *origNodebInfo
 158         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 159         updatedNodebInfo.ConnectionAttempts++
 160         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 161         err := ranReconnectionManager.ReconnectRan(ranName)
 162         assert.NotNil(t, err)
 163         readerMock.AssertCalled(t, "GetNodeb", ranName)
 164         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 165 }
 166
 167 func initRmrSender(rmrMessengerMock *mocks.RmrMessengerMock, log *logger.Logger) *rmrsender.RmrSender {
 168         rmrMessenger := rmrCgo.RmrMessenger(rmrMessengerMock)
 169         rmrMessengerMock.On("Init", tests.GetPort(), tests.MaxMsgSize, tests.Flags, log).Return(&rmrMessenger)
 170         return rmrsender.NewRmrSender(log, &rmrMessenger)
 171 }