openflowjava/openflow-protocol-impl/src/test/java/org/opendaylight/openflowjava/protocol/impl/core/connection/ChannelOutboundQueue02Test.java

   1 /*
   2  * Copyright (c) 2014 Pantheon Technologies s.r.o. 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.openflowjava.protocol.impl.core.connection;
   9
  10 import com.google.common.cache.Cache;
  11 import com.google.common.cache.CacheBuilder;
  12 import com.google.common.cache.RemovalListener;
  13 import io.netty.channel.ChannelHandler;
  14 import io.netty.channel.ChannelHandlerContext;
  15 import io.netty.channel.ChannelOutboundHandlerAdapter;
  16 import io.netty.channel.ChannelPromise;
  17 import io.netty.channel.embedded.EmbeddedChannel;
  18 import java.net.InetSocketAddress;
  19 import java.util.concurrent.TimeUnit;
  20 import org.junit.After;
  21 import org.junit.Assert;
  22 import org.junit.Before;
  23 import org.junit.Test;
  24 import org.mockito.Mock;
  25 import org.mockito.MockitoAnnotations;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.BarrierInput;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoInput;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoReplyInput;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ExperimenterInput;
  30
  31 /**
  32  * Unit tests for ChannelOutboundQueue02.
  33  *
  34  * @author madamjak
  35  */
  36 public class ChannelOutboundQueue02Test {
  37     private static int counter;
  38     private static final int CHANNEL_OUTBOUND_QUEUE_SIZE = 1024;
  39     private static final int RPC_RESPONSE_EXPIRATION = 1;
  40     private static final RemovalListener<RpcResponseKey, ResponseExpectedRpcListener<?>> REMOVAL_LISTENER =
  41         notification -> notification.getValue().discard();
  42
  43     @Mock EchoInput echoInput;
  44     @Mock BarrierInput barrierInput;
  45     @Mock EchoReplyInput echoReplyInput;
  46     @Mock ExperimenterInput experimenterInput;
  47     private ConnectionAdapterImpl adapter;
  48     private Cache<RpcResponseKey, ResponseExpectedRpcListener<?>> cache;
  49
  50     /**
  51      * Initialize mocks.
  52      */
  53     @Before
  54     public void setUp() {
  55         MockitoAnnotations.initMocks(this);
  56     }
  57
  58     /**
  59      * Disconnect adapter after each test.
  60      */
  61     @After
  62     public void tierDown() {
  63         if (adapter != null && adapter.isAlive()) {
  64             adapter.disconnect();
  65         }
  66     }
  67
  68     /**
  69      * Test write to closed / opened channel.
  70      */
  71     @Test
  72     public void test01() throws Exception {
  73         final EmbeddedChannel ec = new EmbeddedChannel(new EmbededChannelHandler());
  74         adapter = new ConnectionAdapterImpl(ec, InetSocketAddress.createUnresolved("localhost", 9876), true,
  75                 CHANNEL_OUTBOUND_QUEUE_SIZE);
  76         cache = CacheBuilder.newBuilder().concurrencyLevel(1).expireAfterWrite(
  77                 RPC_RESPONSE_EXPIRATION, TimeUnit.MINUTES).removalListener(REMOVAL_LISTENER).build();
  78         adapter.setResponseCache(cache);
  79         final ChannelOutboundQueue cq = (ChannelOutboundQueue) ec.pipeline().last();
  80         counter = 0;
  81         adapter.barrier(barrierInput);
  82         adapter.echo(echoInput);
  83         cq.channelInactive(ec.pipeline().lastContext());
  84         ec.runPendingTasks();
  85         Assert.assertEquals("Wrong - ChannelOutboundHandlerAdapter.write was invoked on closed channel",0, counter);
  86         cq.channelActive(ec.pipeline().lastContext());
  87         counter = 0;
  88         adapter.barrier(barrierInput);
  89         adapter.experimenter(experimenterInput);
  90         ec.runPendingTasks();
  91         Assert.assertEquals("Wrong - ChannelOutboundHandlerAdapter.write has not been invoked on opened channel",
  92                 2, counter);
  93     }
  94
  95     /**
  96      * Test write to read only / writable channel.
  97      */
  98     @Test
  99     public void test02() {
 100         final ChangeWritableEmbededChannel ec = new ChangeWritableEmbededChannel(new EmbededChannelHandler());
 101         adapter = new ConnectionAdapterImpl(ec, InetSocketAddress.createUnresolved("localhost", 9876), true,
 102                 CHANNEL_OUTBOUND_QUEUE_SIZE);
 103         cache = CacheBuilder.newBuilder().concurrencyLevel(1).expireAfterWrite(
 104                 RPC_RESPONSE_EXPIRATION, TimeUnit.MINUTES) .removalListener(REMOVAL_LISTENER).build();
 105         adapter.setResponseCache(cache);
 106         ec.setReadOnly();
 107         counter = 0;
 108         adapter.barrier(barrierInput);
 109         adapter.echo(echoInput);
 110         ec.runPendingTasks();
 111         Assert.assertEquals("Wrong - write to readonly channel",0, counter);
 112         ec.setWritable();
 113         adapter.echoReply(echoReplyInput);
 114         adapter.echo(echoInput);
 115         ec.runPendingTasks();
 116         Assert.assertEquals("Wrong - write to writtable channel",4, counter);
 117     }
 118
 119     /**
 120      * Channel Handler for testing.
 121      * @author madamjak
 122      */
 123     private class EmbededChannelHandler extends ChannelOutboundHandlerAdapter {
 124         @Override
 125         public void write(final ChannelHandlerContext ctx, final Object msg,
 126                 final ChannelPromise promise) throws Exception {
 127             if (msg instanceof MessageListenerWrapper) {
 128                 counter++;
 129             }
 130         }
 131     }
 132
 133     /**
 134      * Class for testing - channel can change state to read only or writable.
 135      * @author madamjak
 136      */
 137     private static class ChangeWritableEmbededChannel extends EmbeddedChannel {
 138         private boolean isWrittable;
 139
 140         ChangeWritableEmbededChannel(final ChannelHandler channelHandler) {
 141             super(channelHandler);
 142             setReadOnly();
 143         }
 144
 145         @Override
 146         public boolean isWritable() {
 147             return isWrittable;
 148         }
 149
 150         public void setWritable() {
 151             isWrittable = true;
 152         }
 153
 154         public void setReadOnly() {
 155             isWrittable = false;
 156         }
 157     }
 158 }