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

   1 /*
   2  * Copyright (c) 2013 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 package org.opendaylight.protocol.bgp.rib.impl;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertTrue;
  12 import static org.junit.Assert.fail;
  13 import static org.mockito.Matchers.any;
  14 import static org.mockito.Mockito.doAnswer;
  15 import static org.mockito.Mockito.doReturn;
  16 import static org.mockito.Mockito.mock;
  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.util.HashedWheelTimer;
  22 import io.netty.util.concurrent.DefaultPromise;
  23 import io.netty.util.concurrent.GlobalEventExecutor;
  24
  25 import java.util.List;
  26
  27 import org.junit.After;
  28 import org.junit.Before;
  29 import org.junit.Ignore;
  30 import org.junit.Test;
  31 import org.mockito.Mock;
  32 import org.mockito.MockitoAnnotations;
  33 import org.mockito.invocation.InvocationOnMock;
  34 import org.mockito.stubbing.Answer;
  35 import org.opendaylight.protocol.bgp.concepts.BGPAddressFamily;
  36 import org.opendaylight.protocol.bgp.concepts.BGPSubsequentAddressFamily;
  37 import org.opendaylight.protocol.bgp.concepts.BGPTableType;
  38 import org.opendaylight.protocol.bgp.parser.BGPError;
  39 import org.opendaylight.protocol.bgp.parser.BGPMessage;
  40 import org.opendaylight.protocol.bgp.parser.BGPParameter;
  41 import org.opendaylight.protocol.bgp.parser.message.BGPKeepAliveMessage;
  42 import org.opendaylight.protocol.bgp.parser.message.BGPNotificationMessage;
  43 import org.opendaylight.protocol.bgp.parser.message.BGPOpenMessage;
  44 import org.opendaylight.protocol.bgp.parser.parameter.MultiprotocolCapability;
  45 import org.opendaylight.protocol.bgp.rib.impl.spi.BGPSessionPreferences;
  46 import org.opendaylight.protocol.concepts.ASNumber;
  47
  48 import com.google.common.collect.Lists;
  49
  50 public class FSMTest {
  51
  52         private BGPSessionNegotiator clientSession;
  53
  54         @Mock
  55         private Channel speakerListener;
  56
  57         @Mock
  58         private ChannelPipeline pipeline;
  59
  60         private final BGPTableType ipv4tt = new BGPTableType(BGPAddressFamily.IPv4, BGPSubsequentAddressFamily.Unicast);
  61
  62         private final BGPTableType linkstatett = new BGPTableType(BGPAddressFamily.LinkState, BGPSubsequentAddressFamily.Linkstate);
  63
  64         private final List<BGPMessage> receivedMsgs = Lists.newArrayList();
  65
  66         private BGPOpenMessage classicOpen;
  67
  68         @Before
  69         public void setUp() {
  70                 MockitoAnnotations.initMocks(this);
  71                 final List<BGPParameter> tlvs = Lists.newArrayList();
  72                 tlvs.add(new MultiprotocolCapability(this.ipv4tt));
  73                 tlvs.add(new MultiprotocolCapability(this.linkstatett));
  74                 final BGPSessionPreferences prefs = new BGPSessionPreferences(new ASNumber(30), (short) 3, null, tlvs);
  75                 this.clientSession = new BGPSessionNegotiator(new HashedWheelTimer(), new DefaultPromise<BGPSessionImpl>(GlobalEventExecutor.INSTANCE), this.speakerListener, prefs, new SimpleSessionListener());
  76                 doAnswer(new Answer<Object>() {
  77                         @Override
  78                         public Object answer(final InvocationOnMock invocation) {
  79                                 final Object[] args = invocation.getArguments();
  80                                 FSMTest.this.receivedMsgs.add((BGPMessage) args[0]);
  81                                 return null;
  82                         }
  83                 }).when(this.speakerListener).writeAndFlush(any(BGPMessage.class));
  84                 doReturn("TestingChannel").when(this.speakerListener).toString();
  85                 doReturn(this.pipeline).when(this.speakerListener).pipeline();
  86                 doReturn(this.pipeline).when(this.pipeline).replace(any(ChannelHandler.class), any(String.class), any(ChannelHandler.class));
  87                 doReturn(mock(ChannelFuture.class)).when(this.speakerListener).close();
  88                 this.classicOpen = new BGPOpenMessage(new ASNumber(30), (short) 3, null, tlvs);
  89         }
  90
  91         @Test
  92         public void testAccSessionChar() throws InterruptedException {
  93                 this.clientSession.channelActive(null);
  94                 assertEquals(1, this.receivedMsgs.size());
  95                 assertTrue(this.receivedMsgs.get(0) instanceof BGPOpenMessage);
  96                 this.clientSession.handleMessage(this.classicOpen);
  97                 assertEquals(2, this.receivedMsgs.size());
  98                 assertTrue(this.receivedMsgs.get(1) instanceof BGPKeepAliveMessage);
  99                 this.clientSession.handleMessage(new BGPKeepAliveMessage());
 100                 assertEquals(this.clientSession.getState(), BGPSessionNegotiator.State.Finished);
 101                 // Thread.sleep(3 * 1000);
 102                 // Thread.sleep(100);
 103                 // assertEquals(3, this.receivedMsgs.size());
 104                 // assertTrue(this.receivedMsgs.get(2) instanceof BGPKeepAliveMessage); // test of keepalive timer
 105                 // this.clientSession.handleMessage(new BGPOpenMessage(new ASNumber(30), (short) 3, null, null));
 106                 // assertEquals(4, this.receivedMsgs.size());
 107                 // assertTrue(this.receivedMsgs.get(3) instanceof BGPNotificationMessage);
 108                 // final BGPMessage m = this.clientListener.getListMsg().get(3);
 109                 // assertEquals(BGPError.FSM_ERROR, ((BGPNotificationMessage) m).getError());
 110         }
 111
 112         @Test
 113         public void testNotAccChars() throws InterruptedException {
 114                 this.clientSession.channelActive(null);
 115                 assertEquals(1, this.receivedMsgs.size());
 116                 assertTrue(this.receivedMsgs.get(0) instanceof BGPOpenMessage);
 117                 this.clientSession.handleMessage(new BGPOpenMessage(new ASNumber(30), (short) 1, null, null));
 118                 assertEquals(2, this.receivedMsgs.size());
 119                 assertTrue(this.receivedMsgs.get(1) instanceof BGPNotificationMessage);
 120                 final BGPMessage m = this.receivedMsgs.get(this.receivedMsgs.size() - 1);
 121                 assertEquals(BGPError.UNSPECIFIC_OPEN_ERROR, ((BGPNotificationMessage) m).getError());
 122         }
 123
 124         @Test
 125         @Ignore
 126         // long duration
 127         public void testNoOpen() throws InterruptedException {
 128                 this.clientSession.channelActive(null);
 129                 assertEquals(1, this.receivedMsgs.size());
 130                 assertTrue(this.receivedMsgs.get(0) instanceof BGPOpenMessage);
 131                 Thread.sleep(BGPSessionNegotiator.INITIAL_HOLDTIMER * 1000 * 60);
 132                 Thread.sleep(100);
 133                 final BGPMessage m = this.receivedMsgs.get(this.receivedMsgs.size() - 1);
 134                 assertEquals(BGPError.HOLD_TIMER_EXPIRED, ((BGPNotificationMessage) m).getError());
 135         }
 136
 137         @Test
 138         public void sendNotification() {
 139                 this.clientSession.channelActive(null);
 140                 this.clientSession.handleMessage(this.classicOpen);
 141                 this.clientSession.handleMessage(new BGPKeepAliveMessage());
 142                 assertEquals(this.clientSession.getState(), BGPSessionNegotiator.State.Finished);
 143                 try {
 144                         this.clientSession.handleMessage(new BGPOpenMessage(new ASNumber(30), (short) 3, null, null));
 145                         fail("Exception should be thrown.");
 146                 } catch (final IllegalStateException e) {
 147                         assertEquals("Unexpected state Finished", e.getMessage());
 148                 }
 149         }
 150
 151         @After
 152         public void tearDown() {
 153
 154         }
 155 }