/* Copyright (C)2013 Pantheon Technologies, s.r.o. All rights reserved. */
package org.opendaylight.openflowjava.protocol.impl.util;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.UnpooledByteBufAllocator;

import java.util.ArrayList;
import java.util.List;

import org.junit.Assert;
import org.junit.Test;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Ipv4Address;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.Ipv4AddressMatchEntry;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.augments.rev131002.Ipv4AddressMatchEntryBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.Ipv4Src;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.OpenflowBasicClass;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.OxmMatchType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.oxm.fields.MatchEntries;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev130731.oxm.fields.MatchEntriesBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.match.grouping.Match;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.match.grouping.MatchBuilder;

/**
 * @author michal.polkorab
 *
 */
public class MatchSerializerTest {

    /**
     * Test for correct serialization of Ipv4Address match entry
     */
    @Test
    public void test() {
        MatchBuilder builder = new MatchBuilder();
        builder.setType(OxmMatchType.class);
        List<MatchEntries> entries = new ArrayList<>();
        MatchEntriesBuilder entriesBuilder = new MatchEntriesBuilder();
        entriesBuilder.setOxmClass(OpenflowBasicClass.class);
        entriesBuilder.setOxmMatchField(Ipv4Src.class);
        entriesBuilder.setHasMask(false);
        Ipv4AddressMatchEntryBuilder addressBuilder = new Ipv4AddressMatchEntryBuilder();
        addressBuilder.setIpv4Address(new Ipv4Address("1.2.3.4"));
        entriesBuilder.addAugmentation(Ipv4AddressMatchEntry.class, addressBuilder.build());
        entries.add(entriesBuilder.build());
        builder.setMatchEntries(entries);
        Match match = builder.build();
        
        ByteBuf out = UnpooledByteBufAllocator.DEFAULT.buffer();
        MatchSerializer.encodeMatch(match, out);
        
        Assert.assertEquals("Wrong type", 1, out.readUnsignedShort());
        out.skipBytes(EncodeConstants.SIZE_OF_SHORT_IN_BYTES);
        Assert.assertEquals("Wrong class", 0x8000, out.readUnsignedShort());
        Assert.assertEquals("Wrong field and mask", 22, out.readUnsignedByte());
        out.skipBytes(EncodeConstants.SIZE_OF_BYTE_IN_BYTES);
        Assert.assertEquals("Wrong ip address (first number)", 1, out.readUnsignedByte());
        Assert.assertEquals("Wrong ip address (second number)", 2, out.readUnsignedByte());
        Assert.assertEquals("Wrong ip address (third number)", 3, out.readUnsignedByte());
        Assert.assertEquals("Wrong ip address (fourth number)", 4, out.readUnsignedByte());
    }

}