objectserializationtest.java

mina是以Java实现的一个开源的网络程序框架

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package org.apache.mina.filter.codec.serialization;

import java.io.ByteArrayOutputStream;

import junit.framework.Assert;
import junit.framework.TestCase;

import org.apache.mina.core.buffer.IoBuffer;
import org.apache.mina.filter.codec.ProtocolCodecSession;
import org.apache.mina.filter.codec.ProtocolDecoder;
import org.apache.mina.filter.codec.ProtocolDecoderOutput;
import org.apache.mina.filter.codec.ProtocolEncoder;
import org.apache.mina.filter.codec.ProtocolEncoderOutput;

/**
 * Tests object serialization codec and streams.
 *
 * @author The Apache MINA Project ([e-mail])
 * @version $Rev: 671827 $, $Date: 2008-06-26 10:49:48 +0200 (Thu, 26 Jun 2008) $
 */
public class ObjectSerializationTest extends TestCase {
    public void testEncoder() throws Exception {
        final String expected = "1234";

        ProtocolCodecSession session = new ProtocolCodecSession();
        ProtocolEncoderOutput out = session.getEncoderOutput();

        ProtocolEncoder encoder = new ObjectSerializationEncoder();
        encoder.encode(session, expected, out);

        Assert.assertEquals(1, session.getEncoderOutputQueue().size());
        IoBuffer buf = (IoBuffer) session.getEncoderOutputQueue().poll();

        testDecoderAndInputStream(expected, buf);
    }

    public void testOutputStream() throws Exception {
        final String expected = "1234";

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectSerializationOutputStream osos = new ObjectSerializationOutputStream(
                baos);

        osos.writeObject(expected);
        osos.flush();

        testDecoderAndInputStream(expected, IoBuffer.wrap(baos.toByteArray()));
    }

    private void testDecoderAndInputStream(String expected, IoBuffer in)
            throws Exception {
        // Test InputStream
        ObjectSerializationInputStream osis = new ObjectSerializationInputStream(
                in.duplicate().asInputStream());

        Object actual = osis.readObject();
        assertEquals(expected, actual);

        // Test ProtocolDecoder
        ProtocolDecoder decoder = new ObjectSerializationDecoder();
        ProtocolCodecSession session = new ProtocolCodecSession();
        ProtocolDecoderOutput decoderOut = session.getDecoderOutput();
        decoder.decode(session, in.duplicate(), decoderOut);

        Assert.assertEquals(1, session.getDecoderOutputQueue().size());
        Assert.assertEquals(expected, session.getDecoderOutputQueue().poll());
    }
}