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
  44         rmrMessengerMock := &mocks.RmrMessengerMock{}
  45         rmrService := getRmrService(rmrMessengerMock, logger)
  46
  47         readerMock := &mocks.RnibReaderMock{}
  48         rnibReaderProvider := func() reader.RNibReader {
  49                 return readerMock
  50         }
  51         writerMock := &mocks.RnibWriterMock{}
  52         rnibWriterProvider := func() rNibWriter.RNibWriter {
  53                 return writerMock
  54         }
  55         ranSetupManager := NewRanSetupManager(logger, rmrService, rnibWriterProvider)
  56         ranReconnectionManager := NewRanReconnectionManager(logger, configuration.ParseConfiguration(), rnibReaderProvider, rnibWriterProvider, ranSetupManager)
  57         return logger, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager
  58 }
  59
  60 func TestRanReconnectionGetNodebFailure(t *testing.T) {
  61         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
  62         ranName := "test"
  63         var nodebInfo *entities.NodebInfo
  64         readerMock.On("GetNodeb", ranName).Return(nodebInfo, common.NewInternalError(errors.New("Error")))
  65         err := ranReconnectionManager.ReconnectRan(ranName)
  66         assert.NotNil(t, err)
  67         readerMock.AssertCalled(t, "GetNodeb", ranName)
  68         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  69 }
  70
  71 func TestShutdownRanReconnection(t *testing.T) {
  72         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
  73         ranName := "test"
  74         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUT_DOWN}
  75         var rnibErr error
  76         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  77         err := ranReconnectionManager.ReconnectRan(ranName)
  78         assert.Nil(t, err)
  79         readerMock.AssertCalled(t, "GetNodeb", ranName)
  80         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  81 }
  82
  83 func TestShuttingdownRanReconnection(t *testing.T) {
  84         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
  85         ranName := "test"
  86         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
  87         var rnibErr error
  88         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  89         updatedNodebInfo := *origNodebInfo
  90         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
  91         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
  92         err := ranReconnectionManager.ReconnectRan(ranName)
  93         assert.Nil(t, err)
  94         readerMock.AssertCalled(t, "GetNodeb", ranName)
  95         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
  96 }
  97
  98 func TestConnectingRanWithMaxAttemptsReconnection(t *testing.T) {
  99         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 100         ranName := "test"
 101         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20}
 102         var rnibErr error
 103         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 104         updatedNodebInfo := *origNodebInfo
 105         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 106         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 107         err := ranReconnectionManager.ReconnectRan(ranName)
 108         assert.Nil(t, err)
 109         readerMock.AssertCalled(t, "GetNodeb", ranName)
 110         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 111 }
 112
 113 func TestUnconnectableRanUpdateNodebInfoFailure(t *testing.T) {
 114         _, _, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 115         ranName := "test"
 116         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
 117         var rnibErr error
 118         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 119         updatedNodebInfo := *origNodebInfo
 120         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
 121         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 122         err := ranReconnectionManager.ReconnectRan(ranName)
 123         assert.NotNil(t, err)
 124         readerMock.AssertCalled(t, "GetNodeb", ranName)
 125         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 126 }
 127
 128 func TestConnectedRanExecuteSetupSuccess(t *testing.T) {
 129         _, rmrMessengerMock, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 130         ranName := "test"
 131         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED, E2ApplicationProtocol: entities.E2ApplicationProtocol_ENDC_X2_SETUP_REQUEST}
 132         var rnibErr error
 133         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 134         updatedNodebInfo := *origNodebInfo
 135         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 136         updatedNodebInfo.ConnectionAttempts++
 137         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(nil)
 138         rmrMessengerMock.On("SendMsg", mock.Anything, mock.AnythingOfType("int")).Return(&rmrCgo.MBuf{}, nil)
 139         err := ranReconnectionManager.ReconnectRan(ranName)
 140         assert.Nil(t, err)
 141         readerMock.AssertCalled(t, "GetNodeb", ranName)
 142         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 143         rmrMessengerMock.AssertNumberOfCalls(t, "SendMsg", 1)
 144 }
 145
 146 func TestConnectedRanExecuteSetupFailure(t *testing.T) {
 147         _, _, 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}
 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(common.NewInternalError(errors.New("Error")))
 156         err := ranReconnectionManager.ReconnectRan(ranName)
 157         assert.NotNil(t, err)
 158         readerMock.AssertCalled(t, "GetNodeb", ranName)
 159         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 160 }
 161
 162 // TODO: should extract to test_utils
 163 func getRmrService(rmrMessengerMock *mocks.RmrMessengerMock, log *logger.Logger) *services.RmrService {
 164         rmrMessenger := rmrCgo.RmrMessenger(rmrMessengerMock)
 165         messageChannel := make(chan *models.NotificationResponse)
 166         rmrMessengerMock.On("Init", tests.GetPort(), tests.MaxMsgSize, tests.Flags, log).Return(&rmrMessenger)
 167         return services.NewRmrService(services.NewRmrConfig(tests.Port, tests.MaxMsgSize, tests.Flags, log), rmrMessenger, messageChannel)
 168 }