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 io.netty.channel.ChannelHandler;
  11 import io.netty.channel.ChannelHandlerContext;
  12 import io.netty.channel.ChannelOutboundHandlerAdapter;
  13 import io.netty.channel.ChannelPromise;
  14 import io.netty.channel.embedded.EmbeddedChannel;
  15
  16 import java.net.InetSocketAddress;
  17 import java.util.concurrent.TimeUnit;
  18
  19 import junit.framework.Assert;
  20
  21 import org.junit.After;
  22 import org.junit.Before;
  23 import org.junit.Test;
  24 import org.mockito.Mock;
  25 import org.mockito.MockitoAnnotations;
  26 import org.opendaylight.openflowjava.protocol.impl.core.connection.ChannelOutboundQueue;
  27 import org.opendaylight.openflowjava.protocol.impl.core.connection.ConnectionAdapterImpl;
  28 import org.opendaylight.openflowjava.protocol.impl.core.connection.MessageListenerWrapper;
  29 import org.opendaylight.openflowjava.protocol.impl.core.connection.ResponseExpectedRpcListener;
  30 import org.opendaylight.openflowjava.protocol.impl.core.connection.RpcResponseKey;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.BarrierInput;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoInput;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoReplyInput;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.ExperimenterInput;
  35
  36 import com.google.common.cache.Cache;
  37 import com.google.common.cache.CacheBuilder;
  38 import com.google.common.cache.RemovalListener;
  39 import com.google.common.cache.RemovalNotification;
  40
  41 /**
  42  * @author madamjak
  43  *
  44  */
  45 public class ChannelOutboundQueue02Test {
  46     private static int counter;
  47     private static final int RPC_RESPONSE_EXPIRATION = 1;
  48     private static final RemovalListener<RpcResponseKey, ResponseExpectedRpcListener<?>> REMOVAL_LISTENER =
  49             new RemovalListener<RpcResponseKey, ResponseExpectedRpcListener<?>>() {
  50         @Override
  51         public void onRemoval(
  52                 final RemovalNotification<RpcResponseKey, ResponseExpectedRpcListener<?>> notification) {
  53             notification.getValue().discard();
  54         }
  55     };
  56
  57     @Mock EchoInput echoInput;
  58     @Mock BarrierInput barrierInput;
  59     @Mock EchoReplyInput echoReplyInput;
  60     @Mock ExperimenterInput experimenterInput;
  61     private ConnectionAdapterImpl adapter;
  62     private Cache<RpcResponseKey, ResponseExpectedRpcListener<?>> cache;
  63     /**
  64      * Initialize mocks
  65      */
  66     @Before
  67     public void setUp() {
  68         MockitoAnnotations.initMocks(this);
  69     }
  70     /**
  71      * Disconnect adapter after each test
  72      */
  73     @After
  74     public void tierDown(){
  75         if (adapter != null && adapter.isAlive()) {
  76             adapter.disconnect();
  77         }
  78     }
  79
  80     /**
  81      * Test write to closed / opened channel
  82      * @throws Exception
  83      */
  84     @Test
  85     public void test01() throws Exception {
  86         EmbeddedChannel ec = new EmbeddedChannel(new EmbededChannelHandler());
  87         adapter = new ConnectionAdapterImpl(ec,InetSocketAddress.createUnresolved("localhost", 9876));
  88         cache = CacheBuilder.newBuilder().concurrencyLevel(1).expireAfterWrite(RPC_RESPONSE_EXPIRATION, TimeUnit.MINUTES)
  89                 .removalListener(REMOVAL_LISTENER).build();
  90         adapter.setResponseCache(cache);
  91         ChannelOutboundQueue cq = (ChannelOutboundQueue) ec.pipeline().last();
  92         counter=0;
  93         adapter.barrier(barrierInput);
  94         adapter.echo(echoInput);
  95         cq.channelInactive(ec.pipeline().lastContext());
  96         ec.runPendingTasks();
  97         Assert.assertEquals("Wrong - ChannelOutboundHandlerAdapter.write was invoked on closed channel",0, counter);
  98         cq.channelActive(ec.pipeline().lastContext());
  99         counter=0;
 100         adapter.barrier(barrierInput);
 101         adapter.experimenter(experimenterInput);
 102         ec.runPendingTasks();
 103         Assert.assertEquals("Wrong - ChannelOutboundHandlerAdapter.write has not been invoked on opened channel",2, counter);
 104     }
 105
 106     /**
 107      * Test write to read only / writable channel
 108      */
 109     @Test
 110     public void test02(){
 111         ChangeWritableEmbededChannel ec = new ChangeWritableEmbededChannel(new EmbededChannelHandler());
 112         adapter = new ConnectionAdapterImpl(ec,InetSocketAddress.createUnresolved("localhost", 9876));
 113         cache = CacheBuilder.newBuilder().concurrencyLevel(1).expireAfterWrite(RPC_RESPONSE_EXPIRATION, TimeUnit.MINUTES)
 114                 .removalListener(REMOVAL_LISTENER).build();
 115         adapter.setResponseCache(cache);
 116         ec.setReadOnly();
 117         counter=0;
 118         adapter.barrier(barrierInput);
 119         adapter.echo(echoInput);
 120         ec.runPendingTasks();
 121         Assert.assertEquals("Wrong - write to readonly channel",0, counter);
 122         ec.setWritable();
 123         adapter.echoReply(echoReplyInput);
 124         adapter.echo(echoInput);
 125         ec.runPendingTasks();
 126         Assert.assertEquals("Wrong - write to writtable channel",4, counter);
 127     }
 128
 129     /**
 130      * Channel Handler for testing
 131      * @author madamjak
 132      *
 133      */
 134     private class EmbededChannelHandler extends ChannelOutboundHandlerAdapter {
 135         @Override
 136         public void write(ChannelHandlerContext ctx, Object msg,
 137                 ChannelPromise promise) throws Exception {
 138             if(msg instanceof MessageListenerWrapper){
 139                 counter++;
 140             }
 141         }
 142     }
 143
 144     /**
 145      * Class for testing - channel can change state to read only or writable
 146      * @author madamjak
 147      *
 148      */
 149     private class ChangeWritableEmbededChannel extends EmbeddedChannel {
 150         private boolean isWrittable;
 151         public ChangeWritableEmbededChannel(ChannelHandler channelHandler){
 152             super(channelHandler);
 153             setReadOnly();
 154         }
 155
 156         @Override
 157         public boolean isWritable() {
 158             return isWrittable;
 159         }
 160
 161         public void setWritable(){
 162             isWrittable = true;
 163         }
 164
 165         public void setReadOnly(){
 166             isWrittable = false;
 167         }
 168     }
 169 }