openflowjava/openflow-protocol-impl/src/test/java/org/opendaylight/openflowjava/protocol/impl/serialization/match/OxmIcmpv4CodeSerializerTest.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.serialization.match;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertTrue;
  12
  13 import io.netty.buffer.ByteBuf;
  14 import io.netty.buffer.PooledByteBufAllocator;
  15 import org.junit.Test;
  16 import org.opendaylight.openflowjava.protocol.api.util.OxmMatchConstants;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.Icmpv4Code;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.OpenflowBasicClass;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntryBuilder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.Icmpv4CodeCaseBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.icmpv4.code._case.Icmpv4CodeBuilder;
  22
  23 /**
  24  * Unit tests for OxmIcmpv4CodeSerializer.
  25  *
  26  * @author michal.polkorab
  27  */
  28 public class OxmIcmpv4CodeSerializerTest {
  29
  30     OxmIcmpv4CodeSerializer serializer = new OxmIcmpv4CodeSerializer();
  31
  32     /**
  33      * Test correct serialization.
  34      */
  35     @Test
  36     public void testSerialize() {
  37         MatchEntryBuilder builder = prepareIcmpv4CodeMatchEntry((short) 200);
  38
  39         ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer();
  40         serializer.serialize(builder.build(), buffer);
  41
  42         checkHeader(buffer, false);
  43         assertEquals("Wrong value", 200, buffer.readUnsignedByte());
  44         assertTrue("Unexpected data", buffer.readableBytes() == 0);
  45     }
  46
  47     /**
  48      * Test correct header serialization.
  49      */
  50     @Test
  51     public void testSerializeHeader() {
  52         MatchEntryBuilder builder = prepareIcmpv4CodeHeader(false);
  53
  54         ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer();
  55         serializer.serializeHeader(builder.build(), buffer);
  56
  57         checkHeader(buffer, false);
  58         assertTrue("Unexpected data", buffer.readableBytes() == 0);
  59     }
  60
  61     /**
  62      * Test correct oxm-class return value.
  63      */
  64     @Test
  65     public void testGetOxmClassCode() {
  66         assertEquals("Wrong oxm-class", OxmMatchConstants.OPENFLOW_BASIC_CLASS, serializer.getOxmClassCode());
  67     }
  68
  69     /**
  70      * Test correct oxm-field return value.
  71      */
  72     @Test
  73     public void getOxmFieldCode() {
  74         assertEquals("Wrong oxm-class", OxmMatchConstants.ICMPV4_CODE, serializer.getOxmFieldCode());
  75     }
  76
  77     /**
  78      * Test correct value length return value.
  79      */
  80     @Test
  81     public void testGetValueLength() {
  82         assertEquals("Wrong value length", Byte.BYTES, serializer.getValueLength());
  83     }
  84
  85     private static MatchEntryBuilder prepareIcmpv4CodeMatchEntry(short value) {
  86         MatchEntryBuilder builder = prepareIcmpv4CodeHeader(false);
  87         Icmpv4CodeCaseBuilder casebuilder = new Icmpv4CodeCaseBuilder();
  88         Icmpv4CodeBuilder valueBuilder = new Icmpv4CodeBuilder();
  89         valueBuilder.setIcmpv4Code(value);
  90         casebuilder.setIcmpv4Code(valueBuilder.build());
  91         builder.setMatchEntryValue(casebuilder.build());
  92         return builder;
  93     }
  94
  95     private static MatchEntryBuilder prepareIcmpv4CodeHeader(boolean hasMask) {
  96         MatchEntryBuilder builder = new MatchEntryBuilder();
  97         builder.setOxmClass(OpenflowBasicClass.class);
  98         builder.setOxmMatchField(Icmpv4Code.class);
  99         builder.setHasMask(hasMask);
 100         return builder;
 101     }
 102
 103     private static void checkHeader(ByteBuf buffer, boolean hasMask) {
 104         assertEquals("Wrong oxm-class", OxmMatchConstants.OPENFLOW_BASIC_CLASS, buffer.readUnsignedShort());
 105         short fieldAndMask = buffer.readUnsignedByte();
 106         assertEquals("Wrong oxm-field", OxmMatchConstants.ICMPV4_CODE, fieldAndMask >>> 1);
 107         assertEquals("Wrong hasMask", hasMask, (fieldAndMask & 1) != 0);
 108         assertEquals("Wrong length", Byte.BYTES, buffer.readUnsignedByte());
 109     }
 110 }