netconf/netconf-client/src/test/java/org/opendaylight/netconf/client/NetconfClientSessionNegotiatorTest.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.netconf.client;
  10
  11 import static junit.framework.Assert.assertEquals;
  12 import static junit.framework.Assert.assertTrue;
  13 import static org.junit.Assert.assertNotEquals;
  14 import static org.mockito.Matchers.any;
  15 import static org.mockito.Matchers.anyObject;
  16 import static org.mockito.Matchers.anyString;
  17 import static org.mockito.Mockito.doAnswer;
  18 import static org.mockito.Mockito.doReturn;
  19 import static org.mockito.Mockito.mock;
  20 import static org.mockito.Mockito.times;
  21 import static org.mockito.Mockito.verify;
  22
  23 import com.google.common.base.Optional;
  24 import com.google.common.collect.ImmutableSet;
  25 import io.netty.channel.Channel;
  26 import io.netty.channel.ChannelFuture;
  27 import io.netty.channel.ChannelHandler;
  28 import io.netty.channel.ChannelHandlerContext;
  29 import io.netty.channel.ChannelInboundHandlerAdapter;
  30 import io.netty.channel.ChannelPipeline;
  31 import io.netty.channel.ChannelProgressivePromise;
  32 import io.netty.channel.EventLoop;
  33 import io.netty.handler.ssl.SslHandler;
  34 import io.netty.util.HashedWheelTimer;
  35 import io.netty.util.Timer;
  36 import io.netty.util.concurrent.GenericFutureListener;
  37 import io.netty.util.concurrent.Promise;
  38 import java.io.InputStream;
  39 import java.util.Set;
  40 import org.junit.Before;
  41 import org.junit.Test;
  42 import org.mockito.internal.util.collections.Sets;
  43 import org.mockito.invocation.InvocationOnMock;
  44 import org.mockito.stubbing.Answer;
  45 import org.opendaylight.controller.config.util.xml.XmlUtil;
  46 import org.opendaylight.netconf.api.NetconfClientSessionPreferences;
  47 import org.opendaylight.netconf.api.NetconfMessage;
  48 import org.opendaylight.netconf.api.messages.NetconfHelloMessage;
  49 import org.opendaylight.netconf.api.messages.NetconfHelloMessageAdditionalHeader;
  50 import org.opendaylight.netconf.nettyutil.handler.ChunkedFramingMechanismEncoder;
  51 import org.opendaylight.netconf.nettyutil.handler.NetconfXMLToHelloMessageDecoder;
  52 import org.opendaylight.netconf.nettyutil.handler.NetconfXMLToMessageDecoder;
  53 import org.opendaylight.netconf.nettyutil.handler.exi.EXIParameters;
  54 import org.opendaylight.netconf.nettyutil.handler.exi.NetconfStartExiMessage;
  55 import org.opendaylight.netconf.util.messages.NetconfMessageUtil;
  56 import org.opendaylight.netconf.util.test.XmlFileLoader;
  57 import org.w3c.dom.Document;
  58
  59 public class NetconfClientSessionNegotiatorTest {
  60
  61     private NetconfHelloMessage helloMessage;
  62     private ChannelPipeline pipeline;
  63     private ChannelFuture future;
  64     private Channel channel;
  65     private ChannelInboundHandlerAdapter channelInboundHandlerAdapter;
  66
  67     @Before
  68     public void setUp() throws Exception {
  69         helloMessage = NetconfHelloMessage.createClientHello(Sets.newSet("exi:1.0"), Optional
  70                 .<NetconfHelloMessageAdditionalHeader>absent());
  71         pipeline = mockChannelPipeline();
  72         future = mockChannelFuture();
  73         channel = mockChannel();
  74         mockEventLoop();
  75     }
  76
  77     private static ChannelHandler mockChannelHandler() {
  78         ChannelHandler handler = mock(ChannelHandler.class);
  79         return handler;
  80     }
  81
  82     private Channel mockChannel() {
  83         Channel ret = mock(Channel.class);
  84         ChannelHandler channelHandler = mockChannelHandler();
  85         doReturn("").when(ret).toString();
  86         doReturn(future).when(ret).close();
  87         doReturn(future).when(ret).writeAndFlush(anyObject());
  88         doReturn(true).when(ret).isOpen();
  89         doReturn(pipeline).when(ret).pipeline();
  90         doReturn("").when(pipeline).toString();
  91         doReturn(pipeline).when(pipeline).remove(any(ChannelHandler.class));
  92         doReturn(channelHandler).when(pipeline).remove(anyString());
  93         return ret;
  94     }
  95
  96     private static ChannelFuture mockChannelFuture() {
  97         ChannelFuture future = mock(ChannelFuture.class);
  98         doReturn(future).when(future).addListener(any(GenericFutureListener.class));
  99         return future;
 100     }
 101
 102     private static ChannelPipeline mockChannelPipeline() {
 103         ChannelPipeline pipeline = mock(ChannelPipeline.class);
 104         ChannelHandler handler = mock(ChannelHandler.class);
 105         doReturn(pipeline).when(pipeline).addAfter(anyString(), anyString(), any(ChannelHandler.class));
 106         doReturn(null).when(pipeline).get(SslHandler.class);
 107         doReturn(pipeline).when(pipeline).addLast(anyString(), any(ChannelHandler.class));
 108         doReturn(handler).when(pipeline).replace(anyString(), anyString(), any(ChunkedFramingMechanismEncoder.class));
 109
 110         NetconfXMLToHelloMessageDecoder messageDecoder = new NetconfXMLToHelloMessageDecoder();
 111         doReturn(messageDecoder).when(pipeline).replace(anyString(), anyString(), any(NetconfXMLToMessageDecoder
 112                 .class));
 113         doReturn(pipeline).when(pipeline).replace(any(ChannelHandler.class), anyString(), any(NetconfClientSession
 114                 .class));
 115         return pipeline;
 116     }
 117
 118     private void mockEventLoop() {
 119         final EventLoop eventLoop = mock(EventLoop.class);
 120         doReturn(eventLoop).when(channel).eventLoop();
 121         doAnswer(new Answer<Void>() {
 122             @Override
 123             public Void answer(InvocationOnMock invocation) throws Throwable {
 124                 final Object[] args = invocation.getArguments();
 125                 final Runnable runnable = (Runnable) args[0];
 126                 runnable.run();
 127                 return null;
 128             }
 129         }).when(eventLoop).execute(any(Runnable.class));
 130     }
 131
 132     private NetconfClientSessionNegotiator createNetconfClientSessionNegotiator(
 133             final Promise<NetconfClientSession> promise,
 134             final NetconfMessage startExi) {
 135         ChannelProgressivePromise progressivePromise = mock(ChannelProgressivePromise.class);
 136         NetconfClientSessionPreferences preferences = new NetconfClientSessionPreferences(helloMessage, startExi);
 137         doReturn(progressivePromise).when(promise).setFailure(any(Throwable.class));
 138
 139         long timeout = 10L;
 140         NetconfClientSessionListener sessionListener = mock(NetconfClientSessionListener.class);
 141         Timer timer = new HashedWheelTimer();
 142         return new NetconfClientSessionNegotiator(preferences, promise, channel, timer, sessionListener, timeout);
 143     }
 144
 145     private NetconfHelloMessage createHelloMsg(final String name) throws Exception {
 146         final InputStream stream = NetconfClientSessionNegotiatorTest.class.getResourceAsStream(name);
 147         final Document doc = XmlUtil.readXmlToDocument(stream);
 148
 149         return new NetconfHelloMessage(doc);
 150     }
 151
 152     private Set<String> createCapabilities(String name) throws Exception {
 153         NetconfHelloMessage hello = createHelloMsg(name);
 154
 155         return ImmutableSet.copyOf(NetconfMessageUtil.extractCapabilitiesFromHello(hello.getDocument()));
 156     }
 157
 158     @Test
 159     public void testNetconfClientSessionNegotiator() throws Exception {
 160         Promise<NetconfClientSession> promise = mock(Promise.class);
 161         doReturn(promise).when(promise).setSuccess(anyObject());
 162         NetconfClientSessionNegotiator negotiator = createNetconfClientSessionNegotiator(promise, null);
 163
 164         negotiator.channelActive(null);
 165         Set<String> caps = Sets.newSet("a", "b");
 166         NetconfHelloMessage helloServerMessage = NetconfHelloMessage.createServerHello(caps, 10);
 167         negotiator.handleMessage(helloServerMessage);
 168         verify(promise).setSuccess(anyObject());
 169     }
 170
 171     @Test
 172     public void testNetconfClientSessionNegotiatorWithEXI() throws Exception {
 173         Promise<NetconfClientSession> promise = mock(Promise.class);
 174         NetconfStartExiMessage exiMessage = NetconfStartExiMessage.create(EXIParameters.empty(), "msg-id");
 175         doReturn(promise).when(promise).setSuccess(anyObject());
 176         NetconfClientSessionNegotiator negotiator = createNetconfClientSessionNegotiator(promise, exiMessage);
 177
 178         negotiator.channelActive(null);
 179         Set<String> caps = Sets.newSet("exi:1.0");
 180         NetconfHelloMessage message = NetconfHelloMessage.createServerHello(caps, 10);
 181
 182         doAnswer(new Answer<Object>() {
 183             @Override
 184             public Object answer(final InvocationOnMock invocationOnMock) throws Throwable {
 185                 channelInboundHandlerAdapter = ((ChannelInboundHandlerAdapter) invocationOnMock.getArguments()[2]);
 186                 return null;
 187             }
 188         }).when(pipeline).addAfter(anyString(), anyString(), any(ChannelHandler.class));
 189
 190         ChannelHandlerContext handlerContext = mock(ChannelHandlerContext.class);
 191         doReturn(pipeline).when(handlerContext).pipeline();
 192         negotiator.handleMessage(message);
 193         Document expectedResult = XmlFileLoader.xmlFileToDocument("netconfMessages/rpc-reply_ok.xml");
 194         channelInboundHandlerAdapter.channelRead(handlerContext, new NetconfMessage(expectedResult));
 195
 196         verify(promise).setSuccess(anyObject());
 197
 198         // two calls for exiMessage, 2 for hello message
 199         verify(pipeline, times(4)).replace(anyString(), anyString(), any(ChannelHandler.class));
 200     }
 201
 202     @Test
 203     public void testNetconfClientSessionNegotiatorGetCached() throws Exception {
 204         Promise promise = mock(Promise.class);
 205         doReturn(promise).when(promise).setSuccess(anyObject());
 206         NetconfClientSessionListener sessionListener = mock(NetconfClientSessionListener.class);
 207         NetconfClientSessionNegotiator negotiator = createNetconfClientSessionNegotiator(promise, null);
 208
 209         Set<String> set = createCapabilities("/helloMessage3.xml");
 210
 211         final Set<String> cachedS1 = (Set<String>) negotiator.getSession(sessionListener, channel,
 212                 createHelloMsg("/helloMessage1.xml")).getServerCapabilities();
 213
 214         //helloMessage2 and helloMessage3 are the same with different order
 215         final Set<String> cachedS2 = (Set<String>) negotiator.getSession(sessionListener, channel,
 216                 createHelloMsg("/helloMessage2.xml")).getServerCapabilities();
 217         final Set<String> cachedS3 = (Set<String>) negotiator.getSession(sessionListener, channel,
 218                 createHelloMsg("/helloMessage3.xml")).getServerCapabilities();
 219
 220         assertEquals(cachedS3, set);
 221         assertNotEquals(cachedS1, set);
 222         assertEquals(cachedS2, set);
 223         assertEquals(cachedS3, cachedS2);
 224         assertNotEquals(cachedS3, cachedS1);
 225         assertNotEquals(cachedS2, cachedS1);
 226         assertTrue(cachedS2 == cachedS3);
 227     }
 228 }