Java tutorial
/* * 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.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.MplsLabel; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.OpenflowBasicClass; 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.MplsLabelCaseBuilder; import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.mpls.label._case.MplsLabelBuilder; /** * @author michal.polkorab * */ public class OxmMplsLabelSerializerTest { OxmMplsLabelSerializer serializer = new OxmMplsLabelSerializer(); /** * Test correct serialization */ @Test public void testSerialize() { MatchEntryBuilder builder = prepareMplsLabelMatchEntry(168535); ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer(); serializer.serialize(builder.build(), buffer); checkHeader(buffer, false); assertEquals("Wrong value", 168535, buffer.readUnsignedInt()); assertTrue("Unexpected data", buffer.readableBytes() == 0); } /** * Test correct header serialization */ @Test public void testSerializeHeader() { MatchEntryBuilder builder = prepareMplsLabelHeader(false); ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer(); serializer.serializeHeader(builder.build(), buffer); checkHeader(buffer, false); 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.MPLS_LABEL, serializer.getOxmFieldCode()); } /** * Test correct value length return value */ @Test public void testGetValueLength() { assertEquals("Wrong value length", EncodeConstants.SIZE_OF_INT_IN_BYTES, serializer.getValueLength()); } private static MatchEntryBuilder prepareMplsLabelMatchEntry(long label) { MatchEntryBuilder builder = prepareMplsLabelHeader(false); MplsLabelCaseBuilder casebuilder = new MplsLabelCaseBuilder(); MplsLabelBuilder valueBuilder = new MplsLabelBuilder(); valueBuilder.setMplsLabel(label); casebuilder.setMplsLabel(valueBuilder.build()); builder.setMatchEntryValue(casebuilder.build()); return builder; } private static MatchEntryBuilder prepareMplsLabelHeader(boolean hasMask) { MatchEntryBuilder builder = new MatchEntryBuilder(); builder.setOxmClass(OpenflowBasicClass.class); builder.setOxmMatchField(MplsLabel.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.MPLS_LABEL, fieldAndMask >>> 1); assertEquals("Wrong hasMask", hasMask, (fieldAndMask & 1) != 0); assertEquals("Wrong length", EncodeConstants.SIZE_OF_INT_IN_BYTES, buffer.readUnsignedByte()); } }