bgp/rib-impl/src/test/java/org/opendaylight/protocol/bgp/rib/impl/BGPSessionImplTest.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.protocol.bgp.rib.impl;
  10
  11 import static org.mockito.Matchers.any;
  12 import static org.mockito.Mockito.doAnswer;
  13 import static org.mockito.Mockito.doReturn;
  14 import static org.mockito.Mockito.mock;
  15
  16 import com.google.common.collect.Lists;
  17 import io.netty.channel.Channel;
  18 import io.netty.channel.ChannelFuture;
  19 import io.netty.channel.ChannelHandler;
  20 import io.netty.channel.ChannelPipeline;
  21 import io.netty.channel.EventLoop;
  22 import io.netty.util.concurrent.Future;
  23 import io.netty.util.concurrent.GenericFutureListener;
  24 import io.netty.util.concurrent.GlobalEventExecutor;
  25 import java.net.InetAddress;
  26 import java.net.InetSocketAddress;
  27 import java.net.UnknownHostException;
  28 import java.util.List;
  29 import java.util.concurrent.TimeUnit;
  30 import org.junit.Assert;
  31 import org.junit.Before;
  32 import org.junit.Test;
  33 import org.mockito.Mock;
  34 import org.mockito.Mockito;
  35 import org.mockito.MockitoAnnotations;
  36 import org.mockito.invocation.InvocationOnMock;
  37 import org.mockito.stubbing.Answer;
  38 import org.opendaylight.protocol.bgp.parser.BGPError;
  39 import org.opendaylight.protocol.bgp.parser.BgpTableTypeImpl;
  40 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.AsNumber;
  41 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Address;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.KeepaliveBuilder;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.Notify;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.NotifyBuilder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.Open;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.OpenBuilder;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.ProtocolVersion;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.Update;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.UpdateBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.BgpParameters;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.BgpParametersBuilder;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.bgp.parameters.c.parameters.As4BytesCaseBuilder;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.bgp.parameters.c.parameters.as4.bytes._case.As4BytesCapabilityBuilder;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.open.bgp.parameters.c.parameters.MultiprotocolCaseBuilder;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.open.bgp.parameters.c.parameters.multiprotocol._case.MultiprotocolCapabilityBuilder;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
  59 import org.opendaylight.yangtools.yang.binding.Notification;
  60
  61 public class BGPSessionImplTest {
  62
  63     private static final int HOLD_TIMER = 3;
  64     private static final AsNumber AS_NUMBER = new AsNumber(30L);
  65     private static final Ipv4Address BGP_ID = new Ipv4Address("1.1.1.2");
  66
  67     @Mock
  68     private EventLoop eventLoop;
  69
  70     @Mock
  71     private Channel speakerListener;
  72
  73     @Mock
  74     private ChannelPipeline pipeline;
  75
  76     private final BgpTableType ipv4tt = new BgpTableTypeImpl(Ipv4AddressFamily.class, UnicastSubsequentAddressFamily.class);
  77
  78     private final List<Notification> receivedMsgs = Lists.newArrayList();
  79
  80     private Open classicOpen;
  81
  82     private BGPSessionImpl bgpSession;
  83
  84     private SimpleSessionListener listener;
  85
  86     @Before
  87     public void setUp() throws UnknownHostException {
  88         MockitoAnnotations.initMocks(this);
  89         final List<BgpParameters> tlvs = Lists.newArrayList();
  90         this.classicOpen = new OpenBuilder().setMyAsNumber(AS_NUMBER.getValue().intValue()).setHoldTimer(HOLD_TIMER).setVersion(new ProtocolVersion((short) 4)).setBgpParameters(
  91                 tlvs).setBgpIdentifier(BGP_ID).build();
  92
  93         tlvs.add(new BgpParametersBuilder().setCParameters(
  94             new MultiprotocolCaseBuilder().setMultiprotocolCapability(
  95                 new MultiprotocolCapabilityBuilder().setAfi(this.ipv4tt.getAfi()).setSafi(this.ipv4tt.getSafi()).build()).build()).build());
  96         tlvs.add(new BgpParametersBuilder().setCParameters(new As4BytesCaseBuilder().setAs4BytesCapability(new As4BytesCapabilityBuilder().setAsNumber(
  97             AS_NUMBER).build()).build()).build());
  98
  99         final ChannelFuture f = mock(ChannelFuture.class);
 100         doReturn(null).when(f).addListener(Mockito.<GenericFutureListener<? extends Future<? super Void>>>any());
 101
 102         doAnswer(new Answer<Object>() {
 103             @Override
 104             public Object answer(final InvocationOnMock invocation) {
 105                 final Object[] args = invocation.getArguments();
 106                 BGPSessionImplTest.this.receivedMsgs.add((Notification) args[0]);
 107                 return f;
 108             }
 109         }).when(this.speakerListener).writeAndFlush(any(Notification.class));
 110         doReturn(this.eventLoop).when(this.speakerListener).eventLoop();
 111         doAnswer(new Answer<Void>() {
 112             @Override
 113             public Void answer(InvocationOnMock invocation) throws Throwable {
 114                 final Runnable command = (Runnable) invocation.getArguments()[0];
 115                 final long delay = (long) invocation.getArguments()[1];
 116                 final TimeUnit unit = (TimeUnit) invocation.getArguments()[2];
 117                 GlobalEventExecutor.INSTANCE.schedule(command, delay, unit);
 118                 return null;
 119             }
 120         }).when(this.eventLoop).schedule(any(Runnable.class), any(long.class), any(TimeUnit.class));
 121         doReturn("TestingChannel").when(this.speakerListener).toString();
 122         doReturn(new InetSocketAddress(InetAddress.getByName(BGP_ID.getValue()), 179)).when(this.speakerListener).remoteAddress();
 123         doReturn(this.pipeline).when(this.speakerListener).pipeline();
 124         doReturn(this.pipeline).when(this.pipeline).replace(any(ChannelHandler.class), any(String.class), any(ChannelHandler.class));
 125         doReturn(mock(ChannelFuture.class)).when(this.speakerListener).close();
 126         this.listener = new SimpleSessionListener();
 127         this.bgpSession = new BGPSessionImpl(this.listener, this.speakerListener, this.classicOpen, this.classicOpen.getHoldTimer());
 128     }
 129
 130     @Test
 131     public void testBGPSession() {
 132         this.bgpSession.sessionUp();
 133         Assert.assertEquals(BGPSessionImpl.State.Up, this.bgpSession.getState());
 134         Assert.assertEquals(AS_NUMBER, this.bgpSession.getAsNumber());
 135         Assert.assertEquals(BGP_ID, this.bgpSession.getBgpId());
 136         Assert.assertEquals(1, this.bgpSession.getAdvertisedTableTypes().size());
 137         Assert.assertTrue(this.listener.up);
 138
 139         this.bgpSession.handleMessage(new UpdateBuilder().build());
 140         Assert.assertEquals(1, this.listener.getListMsg().size());
 141         Assert.assertTrue(this.listener.getListMsg().get(0) instanceof Update);
 142
 143         this.bgpSession.handleMessage(new KeepaliveBuilder().build());
 144         this.bgpSession.handleMessage(new KeepaliveBuilder().build());
 145
 146         this.bgpSession.close();
 147         Assert.assertEquals(BGPSessionImpl.State.Idle, this.bgpSession.getState());
 148         Assert.assertEquals(1, this.receivedMsgs.size());
 149         Assert.assertTrue(this.receivedMsgs.get(0) instanceof Notify);
 150         final Notify error = (Notify) this.receivedMsgs.get(0);
 151         Assert.assertEquals(BGPError.CEASE.getCode(), error.getErrorCode().shortValue());
 152         Mockito.verify(this.speakerListener).close();
 153     }
 154
 155     @Test
 156     public void testHandleOpenMsg() {
 157         this.bgpSession.handleMessage(this.classicOpen);
 158         Assert.assertEquals(BGPSessionImpl.State.Idle, this.bgpSession.getState());
 159         Assert.assertEquals(1, this.receivedMsgs.size());
 160         Assert.assertTrue(this.receivedMsgs.get(0) instanceof Notify);
 161         final Notify error = (Notify) this.receivedMsgs.get(0);
 162         Assert.assertEquals(BGPError.FSM_ERROR.getCode(), error.getErrorCode().shortValue());
 163         Assert.assertEquals(BGPError.FSM_ERROR.getSubcode(), error.getErrorSubcode().shortValue());
 164         Mockito.verify(this.speakerListener).close();
 165     }
 166
 167     @Test
 168     public void testHandleNotifyMsg() {
 169         this.bgpSession.handleMessage(new NotifyBuilder().setErrorCode(BGPError.BAD_BGP_ID.getCode()).setErrorSubcode(BGPError.BAD_BGP_ID.getSubcode()).build());
 170         Assert.assertEquals(BGPSessionImpl.State.Idle, this.bgpSession.getState());
 171         Mockito.verify(this.speakerListener).close();
 172     }
 173
 174     @Test
 175     public void testEndOfInput() {
 176         this.bgpSession.sessionUp();
 177         Assert.assertFalse(this.listener.down);
 178         this.bgpSession.endOfInput();
 179         Assert.assertTrue(this.listener.down);
 180     }
 181
 182     @Test
 183     public void testHoldTimerExpire() throws InterruptedException {
 184         this.bgpSession.sessionUp();
 185         Thread.sleep(3500);
 186         Assert.assertEquals(BGPSessionImpl.State.Idle, this.bgpSession.getState());
 187         Assert.assertEquals(3, this.receivedMsgs.size());
 188         Assert.assertTrue(this.receivedMsgs.get(2) instanceof Notify);
 189         final Notify error = (Notify) this.receivedMsgs.get(2);
 190         Assert.assertEquals(BGPError.HOLD_TIMER_EXPIRED.getCode(), error.getErrorCode().shortValue());
 191         Assert.assertEquals(BGPError.HOLD_TIMER_EXPIRED.getSubcode(), error.getErrorSubcode().shortValue());
 192         Mockito.verify(this.speakerListener).close();
 193     }
 194 }