b97a36a10f
Motivation: I received a report the its not possible to add another ChannelInitialiter in the initChannel(...) method, so we should add a test case for it. Modifications: Added testcase. Result: Validate that all works as expected.
143 lines
4.9 KiB
Java
143 lines
4.9 KiB
Java
/*
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* Copyright 2016 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.channel;
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import io.netty.bootstrap.Bootstrap;
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import io.netty.bootstrap.ServerBootstrap;
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import io.netty.channel.embedded.EmbeddedChannel;
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import io.netty.channel.local.LocalAddress;
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import io.netty.channel.local.LocalChannel;
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import io.netty.channel.local.LocalServerChannel;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicInteger;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertTrue;
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public class ChannelInitializerTest {
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private static final int TIMEOUT_MILLIS = 1000;
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private static final LocalAddress SERVER_ADDRESS = new LocalAddress("addr");
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private EventLoopGroup group;
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private ServerBootstrap server;
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private Bootstrap client;
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private InspectableHandler testHandler;
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@Before
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public void setUp() {
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group = new DefaultEventLoopGroup(1);
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server = new ServerBootstrap()
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.group(group)
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.channel(LocalServerChannel.class)
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.localAddress(SERVER_ADDRESS);
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client = new Bootstrap()
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.group(group)
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.channel(LocalChannel.class)
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.handler(new ChannelInboundHandlerAdapter());
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testHandler = new InspectableHandler();
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}
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@After
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public void tearDown() {
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group.shutdownGracefully(0, TIMEOUT_MILLIS, TimeUnit.MILLISECONDS).syncUninterruptibly();
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}
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@Test(timeout = TIMEOUT_MILLIS)
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public void firstHandlerInPipelineShouldReceiveChannelRegisteredEvent() {
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testChannelRegisteredEventPropagation(new ChannelInitializer<LocalChannel>() {
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@Override
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public void initChannel(LocalChannel channel) {
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channel.pipeline().addFirst(testHandler);
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}
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});
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}
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@Test(timeout = TIMEOUT_MILLIS)
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public void lastHandlerInPipelineShouldReceiveChannelRegisteredEvent() {
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testChannelRegisteredEventPropagation(new ChannelInitializer<LocalChannel>() {
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@Override
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public void initChannel(LocalChannel channel) {
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channel.pipeline().addLast(testHandler);
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}
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});
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}
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@Test
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public void testAddFirstChannelInitializer() {
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testAddChannelInitializer(true);
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}
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@Test
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public void testAddLastChannelInitializer() {
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testAddChannelInitializer(false);
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}
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private static void testAddChannelInitializer(final boolean first) {
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final AtomicBoolean called = new AtomicBoolean();
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EmbeddedChannel channel = new EmbeddedChannel(new ChannelInitializer<Channel>() {
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@Override
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protected void initChannel(Channel ch) throws Exception {
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ChannelHandler handler = new ChannelInitializer<Channel>() {
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@Override
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protected void initChannel(Channel ch) throws Exception {
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called.set(true);
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}
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};
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if (first) {
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ch.pipeline().addFirst(handler);
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} else {
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ch.pipeline().addLast(handler);
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}
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}
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});
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channel.finish();
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assertTrue(called.get());
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}
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private void testChannelRegisteredEventPropagation(ChannelInitializer<LocalChannel> init) {
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Channel clientChannel = null, serverChannel = null;
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try {
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server.childHandler(init);
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serverChannel = server.bind().syncUninterruptibly().channel();
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clientChannel = client.connect(SERVER_ADDRESS).syncUninterruptibly().channel();
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assertEquals(1, testHandler.channelRegisteredCount.get());
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} finally {
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closeChannel(clientChannel);
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closeChannel(serverChannel);
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}
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}
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private static void closeChannel(Channel c) {
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if (c != null) {
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c.close().syncUninterruptibly();
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}
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}
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private static final class InspectableHandler extends ChannelDuplexHandler {
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final AtomicInteger channelRegisteredCount = new AtomicInteger(0);
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@Override
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public void channelRegistered(ChannelHandlerContext ctx) {
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channelRegisteredCount.incrementAndGet();
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ctx.fireChannelRegistered();
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}
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}
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}
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