openflow-protocol-impl/src/test/java/org/opendaylight/openflowjava/protocol/impl/deserialization/factories/HelloMessageFactoryTest.java

   1 /*
   2  * Copyright (c) 2013 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
   9 package org.opendaylight.openflowjava.protocol.impl.deserialization.factories;
  10
  11 import io.netty.buffer.ByteBuf;
  12
  13 import java.util.ArrayList;
  14 import java.util.List;
  15
  16 import org.junit.Assert;
  17 import org.junit.Before;
  18 import org.junit.Test;
  19 import org.opendaylight.openflowjava.protocol.api.extensibility.DeserializerRegistry;
  20 import org.opendaylight.openflowjava.protocol.api.extensibility.MessageCodeKey;
  21 import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
  22 import org.opendaylight.openflowjava.protocol.impl.deserialization.DeserializerRegistryImpl;
  23 import org.opendaylight.openflowjava.protocol.impl.util.BufferHelper;
  24 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.HelloElementType;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.HelloMessage;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.hello.Elements;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.hello.ElementsBuilder;
  29
  30 /**
  31  * @author michal.polkorab
  32  * @author timotej.kubas
  33  * @author madamjak
  34  */
  35 public class HelloMessageFactoryTest {
  36
  37     private OFDeserializer<HelloMessage> helloFactory;
  38
  39     /**
  40      * Initializes deserializer registry and lookups correct deserializer
  41      */
  42     @Before
  43     public void startUp() {
  44         DeserializerRegistry registry = new DeserializerRegistryImpl();
  45         registry.init();
  46         helloFactory = registry.getDeserializer(
  47                 new MessageCodeKey(EncodeConstants.OF13_VERSION_ID, 0, HelloMessage.class));
  48     }
  49
  50     /**
  51      * Testing {@link HelloMessageFactory} for correct length without padding
  52      */
  53     @Test
  54     public void testWithoutPadding() {
  55         ByteBuf bb = BufferHelper.buildBuffer("00 01 " // type
  56                                             + "00 08 " // length
  57                                             + "00 00 00 11" // bitmap 1
  58                                             );
  59         HelloMessage builtByFactory = BufferHelper.deserialize(helloFactory, bb);
  60         BufferHelper.checkHeaderV13(builtByFactory);
  61         List<Elements> element = createElement(4,HelloElementType.VERSIONBITMAP.getIntValue());
  62         Assert.assertEquals("Wrong type", element.get(0).getType(), builtByFactory.getElements().get(0).getType());
  63         Assert.assertEquals("Wrong versionBitmap", element.get(0).getVersionBitmap(), builtByFactory.getElements().get(0).getVersionBitmap());
  64     }
  65
  66     /**
  67      * Testing {@link HelloMessageFactory} for correct length with padding
  68      */
  69     @Test
  70     public void testWithPadding() {
  71         ByteBuf bb = BufferHelper.buildBuffer("00 01 " // type
  72                                             + "00 0c " // length
  73                                             + "00 00 00 11 " // bitmap 1
  74                                             + "00 00 00 00 " // bitmap 2
  75                                             + "00 00 00 00"  // padding
  76                                             );
  77         HelloMessage builtByFactory = BufferHelper.deserialize(helloFactory, bb);
  78         BufferHelper.checkHeaderV13(builtByFactory);
  79         List<Elements> element = createElement(8,HelloElementType.VERSIONBITMAP.getIntValue());
  80         Assert.assertEquals("Wrong type", element.get(0).getType(), builtByFactory.getElements().get(0).getType());
  81         Assert.assertEquals("Wrong versionBitmap", element.get(0).getVersionBitmap(), builtByFactory.getElements().get(0).getVersionBitmap());
  82     }
  83
  84     /**
  85      * Testing {@link HelloMessageFactory} if incorrect version is set
  86      */
  87     @Test
  88     public void testBadType(){
  89         ByteBuf bb = BufferHelper.buildBuffer("00 02 " // type
  90                                             + "00 0c " // length
  91                                             + "00 00 00 11 " // bitmap 1
  92                                             + "00 00 00 00 " // bitmap 2
  93                                             + "00 00 00 00"  // padding
  94                                             );
  95         HelloMessage builtByFactory = BufferHelper.deserialize(helloFactory, bb);
  96         BufferHelper.checkHeaderV13(builtByFactory);
  97         Assert.assertEquals("Wrong - no element has been expected", 0, builtByFactory.getElements().size());
  98     }
  99
 100     private static List<Elements> createElement(int lengthInByte, int type) {
 101         ElementsBuilder elementsBuilder = new ElementsBuilder();
 102         List<Elements> elementsList = new ArrayList<>();
 103         List<Boolean> booleanList = new ArrayList<>();
 104         booleanList.add(true);
 105         booleanList.add(false);
 106         booleanList.add(false);
 107         booleanList.add(false);
 108         booleanList.add(true);
 109         int inSize = booleanList.size();
 110         for (int i = 1; i < ((lengthInByte * 8) - inSize + 1); i++) {
 111             booleanList.add(false);
 112         }
 113         elementsBuilder.setType(HelloElementType.forValue(type));
 114         elementsBuilder.setVersionBitmap(booleanList);
 115         elementsList.add(elementsBuilder.build());
 116         return elementsList;
 117     }
 118 }