Netty Test

Test.java

/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package io.netty.testsuite.transport.socket;

import io.netty.bootstrap.Bootstrap;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundMessageHandlerAdapter;
import java.util.Random;
import org.junit.Test;

import static org.junit.Assert.*;

public class SocketBufReleaseTest extends AbstractSocketTest {

    @Test
    public void testBufRelease() throws Throwable {
        run();
    }

    public void testBufRelease(ServerBootstrap sb, Bootstrap cb) throws Throwable {
        BufWriterHandler handler = new BufWriterHandler();

        sb.childHandler(handler);
        cb.handler(handler);

        Channel sc = sb.bind().sync().channel();
        Channel cc = cb.connect().sync().channel();

        sc.close().sync();
        cc.close().sync();
    }

    @ChannelHandler.Sharable
    private static class BufWriterHandler extends ChannelInboundMessageHandlerAdapter<Object> {

        private final Random random = new Random();

        @Override
        public void channelActive(final ChannelHandlerContext ctx) throws Exception {
            byte[] data = new byte[1024];
            random.nextBytes(data);

            final ByteBuf buf = ctx.alloc().buffer();
            buf.writeBytes(data);

            ctx.channel().write(buf).addListener(new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    assertEquals(buf.refCnt(), 0);
                }
            });
        }

        @Override
        public void messageReceived(ChannelHandlerContext ctx, Object msg) throws Exception {
            // Discard
        }
    }
}