TelnetServerHandlerV3Test.java

package com.github.nettybook.ch7.junit;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import io.netty.channel.embedded.EmbeddedChannel;

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Date;

import org.junit.Test;

public class TelnetServerHandlerV3Test {
    @Test
    public void testConnect() {
        StringBuilder builder = new StringBuilder();
        try {
            builder.append("환영합니다. ")
                    .append(InetAddress.getLocalHost().getHostName())
                    .append("에 접속하셨습니다!\r\n")
                    .append("현재 시간은 ")
                    .append(new Date().toString()).append(" 입니다.\r\n");
        }
        catch (UnknownHostException e) {
            fail();
            e.printStackTrace();
        }

        EmbeddedChannel embeddedChannel = 
                new EmbeddedChannel(new TelnetServerHandlerV3());

        String expected = (String) embeddedChannel.readOutbound();
        assertNotNull(expected);

        assertEquals(builder.toString(), (String) expected);

        String request = "hello";
        expected = "입력하신 명령이 '" + request + "' 입니까?\r\n";

        embeddedChannel.writeInbound(request);

        String response = (String) embeddedChannel.readOutbound();
        assertEquals(expected, response);

        embeddedChannel.finish();
    }
}