/*
* Copyright (c) 2014 Pantheon Technologies s.r.o. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.openflowjava.protocol.impl.serialization.match;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.PooledByteBufAllocator;
import org.junit.Assert;
import org.junit.Test;
import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
import org.opendaylight.openflowjava.protocol.api.util.OxmMatchConstants;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.OpenflowBasicClass;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.VlanVid;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntryBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.VlanVidCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.vlan.vid._case.VlanVidBuilder;
/**
* @author michal.polkorab
*
*/
public class OxmVlanVidSerializerTest {
OxmVlanVidSerializer serializer = new OxmVlanVidSerializer();
/**
* Test correct serialization
*/
@Test
public void testSerializeWithCfiBitSet() {
MatchEntryBuilder builder = prepareVlanVidMatchEntry(false, true);
ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer();
serializer.serialize(builder.build(), buffer);
checkHeader(buffer, false);
assertEquals("Wrong value", 4596, buffer.readUnsignedShort());
assertTrue("Unexpected data", buffer.readableBytes() == 0);
}
/**
* Test correct serialization
*/
@Test
public void testSerializeWithoutCfiBitSet() {
MatchEntryBuilder builder = prepareVlanVidMatchEntry(true, false);
ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer();
serializer.serialize(builder.build(), buffer);
checkHeader(buffer, true);
assertEquals("Wrong value", 500, buffer.readUnsignedShort());
byte[] tmp = new byte[2];
buffer.readBytes(tmp);
Assert.assertArrayEquals("Wrong mask", new byte[]{15, 15}, tmp);
assertTrue("Unexpected data", buffer.readableBytes() == 0);
}
/**
* Test correct header serialization
*/
@Test
public void testSerializeHeaderWithoutMask() {
MatchEntryBuilder builder = prepareVlanVidHeader(false);
ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer();
serializer.serializeHeader(builder.build(), buffer);
checkHeader(buffer, false);
assertTrue("Unexpected data", buffer.readableBytes() == 0);
}
/**
* Test correct header serialization
*/
@Test
public void testSerializeHeaderWithMask() {
MatchEntryBuilder builder = prepareVlanVidHeader(true);
ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer();
serializer.serializeHeader(builder.build(), buffer);
checkHeader(buffer, true);
assertTrue("Unexpected data", buffer.readableBytes() == 0);
}
/**
* Test correct oxm-class return value
*/
@Test
public void testGetOxmClassCode() {
assertEquals("Wrong oxm-class", OxmMatchConstants.OPENFLOW_BASIC_CLASS, serializer.getOxmClassCode());
}
/**
* Test correct oxm-field return value
*/
@Test
public void getOxmFieldCode() {
assertEquals("Wrong oxm-class", OxmMatchConstants.VLAN_VID, serializer.getOxmFieldCode());
}
/**
* Test correct value length return value
*/
@Test
public void testGetValueLength() {
assertEquals("Wrong value length", EncodeConstants.SIZE_OF_SHORT_IN_BYTES, serializer.getValueLength());
}
private static MatchEntryBuilder prepareVlanVidMatchEntry(boolean hasMask, boolean cfiBit) {
MatchEntryBuilder builder = prepareVlanVidHeader(hasMask);
VlanVidCaseBuilder casebuilder = new VlanVidCaseBuilder();
VlanVidBuilder valueBuilder = new VlanVidBuilder();
if (hasMask) {
valueBuilder.setMask(new byte[]{15, 15});
}
valueBuilder.setVlanVid(500);
valueBuilder.setCfiBit(cfiBit);
casebuilder.setVlanVid(valueBuilder.build());
builder.setMatchEntryValue(casebuilder.build());
return builder;
}
private static MatchEntryBuilder prepareVlanVidHeader(boolean hasMask) {
MatchEntryBuilder builder = new MatchEntryBuilder();
builder.setOxmClass(OpenflowBasicClass.class);
builder.setOxmMatchField(VlanVid.class);
builder.setHasMask(hasMask);
return builder;
}
private static void checkHeader(ByteBuf buffer, boolean hasMask) {
assertEquals("Wrong oxm-class", OxmMatchConstants.OPENFLOW_BASIC_CLASS, buffer.readUnsignedShort());
short fieldAndMask = buffer.readUnsignedByte();
assertEquals("Wrong oxm-field", OxmMatchConstants.VLAN_VID, fieldAndMask >>> 1);
assertEquals("Wrong hasMask", hasMask, (fieldAndMask & 1) != 0);
if (hasMask) {
assertEquals("Wrong length", EncodeConstants.SIZE_OF_INT_IN_BYTES, buffer.readUnsignedByte());
} else {
assertEquals("Wrong length", EncodeConstants.SIZE_OF_SHORT_IN_BYTES, buffer.readUnsignedByte());
}
}
}