openflow-protocol-impl/src/test/java/org/opendaylight/openflowjava/protocol/impl/serialization/match/OxmEthTypeSerializerTest.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
   9 package org.opendaylight.openflowjava.protocol.impl.serialization.match;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertTrue;
  13 import io.netty.buffer.ByteBuf;
  14 import io.netty.buffer.PooledByteBufAllocator;
  15
  16 import org.junit.Test;
  17 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  18 import org.opendaylight.openflowjava.protocol.api.util.OxmMatchConstants;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.EthTypeMatchEntry;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.EthTypeMatchEntryBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.EtherType;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.EthType;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.OpenflowBasicClass;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.oxm.fields.grouping.MatchEntriesBuilder;
  25
  26 /**
  27  * @author michal.polkorab
  28  *
  29  */
  30 public class OxmEthTypeSerializerTest {
  31
  32     OxmEthTypeSerializer serializer = new OxmEthTypeSerializer();
  33
  34     /**
  35      * Test correct serialization
  36      */
  37     @Test
  38     public void testSerialize() {
  39         MatchEntriesBuilder builder = prepareEthTypeMatchEntry(65535);
  40
  41         ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer();
  42         serializer.serialize(builder.build(), buffer);
  43
  44         checkHeader(buffer, false);
  45         assertEquals("Wrong value", 65535, buffer.readUnsignedShort());
  46         assertTrue("Unexpected data", buffer.readableBytes() == 0);
  47     }
  48
  49     /**
  50      * Test correct header serialization
  51      */
  52     @Test
  53     public void testSerializeHeader() {
  54         MatchEntriesBuilder builder = prepareEthTypeHeader(false);
  55
  56         ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer();
  57         serializer.serializeHeader(builder.build(), buffer);
  58
  59         checkHeader(buffer, false);
  60         assertTrue("Unexpected data", buffer.readableBytes() == 0);
  61     }
  62
  63     /**
  64      * Test correct oxm-class return value
  65      */
  66     @Test
  67     public void testGetOxmClassCode() {
  68         assertEquals("Wrong oxm-class", OxmMatchConstants.OPENFLOW_BASIC_CLASS, serializer.getOxmClassCode());
  69     }
  70
  71     /**
  72      * Test correct oxm-field return value
  73      */
  74     @Test
  75     public void getOxmFieldCode() {
  76         assertEquals("Wrong oxm-class", OxmMatchConstants.ETH_TYPE, serializer.getOxmFieldCode());
  77     }
  78
  79     /**
  80      * Test correct value length return value
  81      */
  82     @Test
  83     public void testGetValueLength() {
  84         assertEquals("Wrong value length", EncodeConstants.SIZE_OF_SHORT_IN_BYTES, serializer.getValueLength());
  85     }
  86
  87
  88     private static MatchEntriesBuilder prepareEthTypeMatchEntry(int type) {
  89         MatchEntriesBuilder builder = prepareEthTypeHeader(false);
  90         EthTypeMatchEntryBuilder typeBuilder = new EthTypeMatchEntryBuilder();
  91         typeBuilder.setEthType(new EtherType(type));
  92         builder.addAugmentation(EthTypeMatchEntry.class, typeBuilder.build());
  93         return builder;
  94     }
  95
  96     private static MatchEntriesBuilder prepareEthTypeHeader(boolean hasMask) {
  97         MatchEntriesBuilder builder = new MatchEntriesBuilder();
  98         builder.setOxmClass(OpenflowBasicClass.class);
  99         builder.setOxmMatchField(EthType.class);
 100         builder.setHasMask(hasMask);
 101         return builder;
 102     }
 103
 104     private static void checkHeader(ByteBuf buffer, boolean hasMask) {
 105         assertEquals("Wrong oxm-class", OxmMatchConstants.OPENFLOW_BASIC_CLASS, buffer.readUnsignedShort());
 106         short fieldAndMask = buffer.readUnsignedByte();
 107         assertEquals("Wrong oxm-field", OxmMatchConstants.ETH_TYPE, fieldAndMask >>> 1);
 108         assertEquals("Wrong hasMask", hasMask, (fieldAndMask & 1) != 0);
 109         assertEquals("Wrong length", EncodeConstants.SIZE_OF_SHORT_IN_BYTES, buffer.readUnsignedByte());
 110     }
 111 }