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