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MemberIdMarshalTest.java
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MemberIdMarshalTest.java
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/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j Enterprise Edition. The included source
* code can be redistributed and/or modified under the terms of the
* GNU AFFERO GENERAL PUBLIC LICENSE Version 3
* (http://www.fsf.org/licensing/licenses/agpl-3.0.html) with the
* Commons Clause, as found in the associated LICENSE.txt file.
*
* 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.
*
* Neo4j object code can be licensed independently from the source
* under separate terms from the AGPL. Inquiries can be directed to:
* licensing@neo4j.com
*
* More information is also available at:
* https://neo4j.com/licensing/
*/
package org.neo4j.causalclustering.core.consensus.membership;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import org.junit.Test;
import java.util.UUID;
import org.neo4j.causalclustering.messaging.NetworkFlushableChannelNetty4;
import org.neo4j.causalclustering.messaging.NetworkReadableClosableChannelNetty4;
import org.neo4j.causalclustering.messaging.EndOfStreamException;
import org.neo4j.causalclustering.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 = 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 = 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
}
}
}