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