/*
 * Copyright 2015 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.channel.epoll;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.ConnectTimeoutException;
import io.netty.channel.EventLoopGroup;
import io.netty.util.CharsetUtil;

import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.util.Collections;

import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;

public class EpollSocketTcpMd5Test  {
    private static final byte[] SERVER_KEY = "abc".getBytes(CharsetUtil.US_ASCII);
    private static final byte[] BAD_KEY = "def".getBytes(CharsetUtil.US_ASCII);
    private static EventLoopGroup GROUP;
    private EpollServerSocketChannel server;

    @BeforeClass
    public static void beforeClass() {
        GROUP = new EpollEventLoopGroup(1);
    }

    @AfterClass
    public static void afterClass() {
        GROUP.shutdownGracefully();
    }

    @Before
    public void setup() {
        Bootstrap bootstrap = new Bootstrap();
        server = (EpollServerSocketChannel) bootstrap.group(GROUP)
                .channel(EpollServerSocketChannel.class)
                .handler(new ChannelInboundHandlerAdapter())
                .bind(new InetSocketAddress(0)).syncUninterruptibly().channel();
    }

    @After
    public void teardown() {
        server.close().syncUninterruptibly();
    }

    @Test
    public void testServerSocketChannelOption() throws Exception {
        server.config().setOption(EpollChannelOption.TCP_MD5SIG, Collections.singletonMap(InetAddress.getLocalHost(),
            SERVER_KEY));
        server.config().setOption(EpollChannelOption.TCP_MD5SIG, Collections.<InetAddress, byte[]>emptyMap());
    }

    @Test
    public void testServerOption() throws Exception {
        Bootstrap bootstrap = new Bootstrap();
        EpollServerSocketChannel ch = (EpollServerSocketChannel) bootstrap.group(GROUP)
                .channel(EpollServerSocketChannel.class)
                .handler(new ChannelInboundHandlerAdapter())
                .bind(new InetSocketAddress(0)).syncUninterruptibly().channel();

        ch.config().setOption(EpollChannelOption.TCP_MD5SIG, Collections.singletonMap(InetAddress.getLocalHost(),
            SERVER_KEY));
        ch.config().setOption(EpollChannelOption.TCP_MD5SIG, Collections.<InetAddress, byte[]>emptyMap());

        ch.close().syncUninterruptibly();
    }

    @Test(expected = ConnectTimeoutException.class)
    public void testKeyMismatch() throws Exception {
        server.config().setOption(EpollChannelOption.TCP_MD5SIG, Collections.singletonMap(InetAddress.getLocalHost(),
            SERVER_KEY));

        EpollSocketChannel client = (EpollSocketChannel) new Bootstrap().group(GROUP)
                .channel(EpollSocketChannel.class)
                .handler(new ChannelInboundHandlerAdapter())
                .option(EpollChannelOption.TCP_MD5SIG,
                    Collections.singletonMap(InetAddress.getLocalHost(), BAD_KEY))
                .connect(server.localAddress()).syncUninterruptibly().channel();
        client.close().syncUninterruptibly();
    }

    @Test
    public void testKeyMatch() throws Exception {
        server.config().setOption(EpollChannelOption.TCP_MD5SIG, Collections.singletonMap(InetAddress.getLocalHost(),
            SERVER_KEY));

        EpollSocketChannel client = (EpollSocketChannel) new Bootstrap().group(GROUP)
                .channel(EpollSocketChannel.class)
                .handler(new ChannelInboundHandlerAdapter())
                .option(EpollChannelOption.TCP_MD5SIG,
                    Collections.singletonMap(InetAddress.getLocalHost(), SERVER_KEY))
                .connect(server.localAddress()).syncUninterruptibly().channel();
        client.close().syncUninterruptibly();
    }
}

@@ -971,16 +971,46 @@
 tions;%0A%0A
+import io.netty.util.NetUtil;%0A
 import o
@@ -1021,24 +1021,24 @@
 unit.After;%0A
-
 import org.j
@@ -1168,17 +1168,16 @@
 Md5Test 
- 
 %7B%0A    pr
@@ -2220,73 +2220,90 @@
 SIG,
- Collections.singletonMap(InetAddress.getLocalHost(),%0A           
+%0A                Collections.%3CInetAddress, byte%5B%5D%3EsingletonMap(NetUtil.LOCALHOST4,
  SER
@@ -2894,73 +2894,90 @@
 SIG,
- Collections.singletonMap(InetAddress.getLocalHost(),%0A           
+%0A                Collections.%3CInetAddress, byte%5B%5D%3EsingletonMap(NetUtil.LOCALHOST4,
  SER
@@ -3317,73 +3317,90 @@
 SIG,
- Collections.singletonMap(InetAddress.getLocalHost(),%0A           
+%0A                Collections.%3CInetAddress, byte%5B%5D%3EsingletonMap(NetUtil.LOCALHOST4,
  SER
@@ -3676,32 +3676,36 @@
                 
+    
 Collections.sing
@@ -3704,47 +3704,60 @@
 ons.
-singletonMap(InetAddress.getLocalHost()
+%3CInetAddress, byte%5B%5D%3EsingletonMap(NetUtil.LOCALHOST4
 , BA
@@ -4026,73 +4026,90 @@
 SIG,
- Collections.singletonMap(InetAddress.getLocalHost(),%0A           
+%0A                Collections.%3CInetAddress, byte%5B%5D%3EsingletonMap(NetUtil.LOCALHOST4,
  SER
@@ -4385,32 +4385,36 @@
                 
+    
 Collections.sing
@@ -4413,47 +4413,60 @@
 ons.
-singletonMap(InetAddress.getLocalHost()
+%3CInetAddress, byte%5B%5D%3EsingletonMap(NetUtil.LOCALHOST4
 , SE

Use NetUtil.LOCALHOST4 instead of InetAddress.getLocalHost()