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/sessions"
  29         "e2mgr/tests"
  30         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
  31         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
  32         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/reader"
  33         "github.com/pkg/errors"
  34         "github.com/stretchr/testify/assert"
  35         "github.com/stretchr/testify/mock"
  36         "testing"
  37 )
  38
  39 func initRanLostConnectionTest(t *testing.T) (*logger.Logger,*mocks.RmrMessengerMock, *mocks.RnibReaderMock, *mocks.RnibWriterMock, *RanReconnectionManager) {
  40         logger, err := logger.InitLogger(logger.DebugLevel)
  41         if err != nil {
  42                 t.Errorf("#... - failed to initialize logger, error: %s", err)
  43         }
  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         ranSetupManager := NewRanSetupManager(logger,rmrService, rnibWriterProvider)
  57         ranReconnectionManager := NewRanReconnectionManager(logger, configuration.ParseConfiguration(), rnibReaderProvider, rnibWriterProvider, ranSetupManager)
  58         return logger,rmrMessengerMock, readerMock, writerMock, ranReconnectionManager
  59 }
  60
  61 func TestRanReconnectionGetNodebFailure(t *testing.T) {
  62         _,_, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
  63         ranName := "test"
  64         var nodebInfo *entities.NodebInfo
  65         readerMock.On("GetNodeb", ranName).Return(nodebInfo, common.NewInternalError(errors.New("Error")))
  66         err := ranReconnectionManager.ReconnectRan(ranName)
  67         assert.NotNil(t, err)
  68         readerMock.AssertCalled(t, "GetNodeb", ranName)
  69         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  70 }
  71
  72 func TestShutdownRanReconnection(t *testing.T) {
  73         _,_, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
  74         ranName := "test"
  75         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUT_DOWN}
  76         var rnibErr error
  77         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  78         err := ranReconnectionManager.ReconnectRan(ranName)
  79         assert.Nil(t, err)
  80         readerMock.AssertCalled(t, "GetNodeb", ranName)
  81         writerMock.AssertNotCalled(t, "UpdateNodebInfo")
  82 }
  83
  84 func TestShuttingdownRanReconnection(t *testing.T) {
  85         _,_, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
  86         ranName := "test"
  87         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
  88         var rnibErr error
  89         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
  90         updatedNodebInfo := *origNodebInfo
  91         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
  92         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
  93         err := ranReconnectionManager.ReconnectRan(ranName)
  94         assert.Nil(t, err)
  95         readerMock.AssertCalled(t, "GetNodeb", ranName)
  96         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
  97 }
  98
  99 func TestConnectingRanWithMaxAttemptsReconnection(t *testing.T) {
 100         _,_, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 101         ranName := "test"
 102         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTING, ConnectionAttempts: 20}
 103         var rnibErr error
 104         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 105         updatedNodebInfo := *origNodebInfo
 106         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
 107         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(rnibErr)
 108         err := ranReconnectionManager.ReconnectRan(ranName)
 109         assert.Nil(t, err)
 110         readerMock.AssertCalled(t, "GetNodeb", ranName)
 111         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 112 }
 113
 114 func TestUnconnectableRanUpdateNodebInfoFailure(t *testing.T) {
 115         _,_, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 116         ranName := "test"
 117         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_SHUTTING_DOWN}
 118         var rnibErr error
 119         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 120         updatedNodebInfo := *origNodebInfo
 121         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_SHUT_DOWN
 122         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 123         err := ranReconnectionManager.ReconnectRan(ranName)
 124         assert.NotNil(t, err)
 125         readerMock.AssertCalled(t, "GetNodeb", ranName)
 126         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 127 }
 128
 129 func TestConnectedRanExecuteSetupSuccess(t *testing.T) {
 130         _,rmrMessengerMock, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 131         ranName := "test"
 132         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED, E2ApplicationProtocol:entities.E2ApplicationProtocol_ENDC_X2_SETUP_REQUEST}
 133         var rnibErr error
 134         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 135         updatedNodebInfo := *origNodebInfo
 136         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 137         updatedNodebInfo.ConnectionAttempts++
 138         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(nil)
 139         rmrMessengerMock.On("SendMsg",mock.Anything, mock.AnythingOfType("int")).Return(&rmrCgo.MBuf{},nil)
 140         err := ranReconnectionManager.ReconnectRan(ranName)
 141         assert.Nil(t, err)
 142         readerMock.AssertCalled(t, "GetNodeb", ranName)
 143         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 144         rmrMessengerMock.AssertNumberOfCalls(t, "SendMsg", 1)
 145 }
 146
 147 func TestConnectedRanExecuteSetupFailure(t *testing.T) {
 148         _,_, readerMock, writerMock, ranReconnectionManager := initRanLostConnectionTest(t)
 149         ranName := "test"
 150         origNodebInfo := &entities.NodebInfo{RanName: ranName, GlobalNbId: &entities.GlobalNbId{PlmnId: "xxx", NbId: "yyy"}, ConnectionStatus: entities.ConnectionStatus_CONNECTED}
 151         var rnibErr error
 152         readerMock.On("GetNodeb", ranName).Return(origNodebInfo, rnibErr)
 153         updatedNodebInfo := *origNodebInfo
 154         updatedNodebInfo.ConnectionStatus = entities.ConnectionStatus_CONNECTING
 155         updatedNodebInfo.ConnectionAttempts++
 156         writerMock.On("UpdateNodebInfo", &updatedNodebInfo).Return(common.NewInternalError(errors.New("Error")))
 157         err := ranReconnectionManager.ReconnectRan(ranName)
 158         assert.NotNil(t, err)
 159         readerMock.AssertCalled(t, "GetNodeb", ranName)
 160         writerMock.AssertNumberOfCalls(t, "UpdateNodebInfo", 1)
 161 }
 162
 163 // TODO: should extract to test_utils
 164 func getRmrService(rmrMessengerMock *mocks.RmrMessengerMock, log *logger.Logger) *services.RmrService {
 165         rmrMessenger := rmrCgo.RmrMessenger(rmrMessengerMock)
 166         messageChannel := make(chan *models.NotificationResponse)
 167         rmrMessengerMock.On("Init", tests.GetPort(), tests.MaxMsgSize, tests.Flags, log).Return(&rmrMessenger)
 168         return services.NewRmrService(services.NewRmrConfig(tests.Port, tests.MaxMsgSize, tests.Flags, log), rmrMessenger, make(sessions.E2Sessions), messageChannel)
 169 }