extension/openflowjava-extension-nicira/src/test/java/org/opendaylight/openflowjava/nx/codec/match/Reg4CodecTest.java

   1 /**
   2  * Copyright (c) 2016 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.openflowjava.nx.codec.match;
  10
  11 import static org.junit.Assert.assertEquals;
  12
  13 import io.netty.buffer.ByteBuf;
  14 import io.netty.buffer.ByteBufAllocator;
  15 import org.junit.Before;
  16 import org.junit.Test;
  17 import org.opendaylight.openflowjava.protocol.api.util.OxmMatchConstants;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.Nxm1Class;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntry;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntryBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg4;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.ofj.nxm.nx.match.reg.grouping.RegValuesBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.oxm.container.match.entry.value.RegCaseValue;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.oxm.container.match.entry.value.RegCaseValueBuilder;
  25
  26 public class Reg4CodecTest {
  27     Reg4Codec reg4Codec;
  28     ByteBuf buffer;
  29     MatchEntry input;
  30
  31     private static final int NXM_FIELD_CODE = 4;
  32     private static final int VALUE_LENGTH = 4;
  33
  34     @Before
  35     public void setUp() {
  36         reg4Codec = new Reg4Codec();
  37         buffer = ByteBufAllocator.DEFAULT.buffer();
  38     }
  39
  40
  41     @Test
  42     public void serializeTest() {
  43         input = createMatchEntry();
  44         reg4Codec.serialize(input, buffer);
  45
  46         assertEquals(OxmMatchConstants.NXM_1_CLASS, buffer.readUnsignedShort());
  47         short fieldMask = buffer.readUnsignedByte();
  48         assertEquals(NXM_FIELD_CODE, fieldMask >> 1);
  49         assertEquals(0, fieldMask & 1);
  50         assertEquals(VALUE_LENGTH, buffer.readUnsignedByte());
  51         assertEquals(1, buffer.readUnsignedInt());
  52     }
  53
  54     @Test
  55     public void deserializeTest() {
  56         createBuffer(buffer);
  57
  58         input = reg4Codec.deserialize(buffer);
  59
  60         RegCaseValue result = ((RegCaseValue) input.getMatchEntryValue());
  61
  62         assertEquals(Nxm1Class.class, input.getOxmClass());
  63         assertEquals(NxmNxReg4.class, input.getOxmMatchField());
  64         assertEquals(false, input.isHasMask());
  65         assertEquals(1, result.getRegValues().getValue().intValue());
  66     }
  67
  68     private MatchEntry createMatchEntry() {
  69         MatchEntryBuilder matchEntryBuilder = new MatchEntryBuilder();
  70         RegCaseValueBuilder caseBuilder = new RegCaseValueBuilder();
  71         RegValuesBuilder valuesBuilder = new RegValuesBuilder();
  72
  73         matchEntryBuilder.setOxmClass(Nxm1Class.class);
  74         matchEntryBuilder.setOxmMatchField(NxmNxReg4.class);
  75         matchEntryBuilder.setHasMask(false);
  76
  77         valuesBuilder.setValue((long)1);
  78
  79         caseBuilder.setRegValues(valuesBuilder.build());
  80         matchEntryBuilder.setMatchEntryValue(caseBuilder.build());
  81         return matchEntryBuilder.build();
  82     }
  83
  84     private void createBuffer(ByteBuf message) {
  85         message.writeShort(OxmMatchConstants.NXM_1_CLASS);
  86
  87         int fieldMask = (NXM_FIELD_CODE << 1);
  88         message.writeByte(fieldMask);
  89         message.writeByte(VALUE_LENGTH);
  90         message.writeInt(1);
  91     }
  92
  93 }