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MemberIdMarshalTest.java
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MemberIdMarshalTest.java
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/*
* Copyright (c) 2002-2016 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.coreedge.core.consensus.membership;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import org.junit.Test;
import java.util.UUID;
import org.neo4j.coreedge.messaging.NetworkFlushableChannelNetty4;
import org.neo4j.coreedge.messaging.NetworkReadableClosableChannelNetty4;
import org.neo4j.coreedge.messaging.EndOfStreamException;
import org.neo4j.coreedge.identity.MemberId;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
public class MemberIdMarshalTest
{
@Test
public void shouldSerializeAndDeserialize() throws Exception
{
// given
MemberId.Marshal marshal = new MemberId.Marshal();
final MemberId member = new MemberId( UUID.randomUUID() );
// when
ByteBuf buffer = Unpooled.buffer( 1_000 );
marshal.marshal( member, new NetworkFlushableChannelNetty4( buffer ) );
final MemberId recovered = marshal.unmarshal( new NetworkReadableClosableChannelNetty4( buffer ) );
// then
assertEquals( member, recovered );
}
@Test
public void shouldThrowExceptionForHalfWrittenInstance() throws Exception
{
// given
// a CoreMember and a ByteBuffer to write it to
MemberId.Marshal marshal = new MemberId.Marshal();
final MemberId aRealMember = new MemberId( UUID.randomUUID() );
ByteBuf buffer = Unpooled.buffer( 1000 );
// and the CoreMember is serialized but for 5 bytes at the end
marshal.marshal( aRealMember, new NetworkFlushableChannelNetty4( buffer ) );
ByteBuf bufferWithMissingBytes = buffer.copy( 0, buffer.writerIndex() - 5 );
// when
try
{
marshal.unmarshal( new NetworkReadableClosableChannelNetty4( bufferWithMissingBytes ) );
fail( "Should have thrown exception" );
}
catch ( EndOfStreamException e )
{
// expected
}
}
}