//
// ========================================================================
// Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.http2.frames;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import org.eclipse.jetty.http2.generator.DataGenerator;
import org.eclipse.jetty.http2.generator.HeaderGenerator;
import org.eclipse.jetty.http2.parser.Parser;
import org.eclipse.jetty.io.ByteBufferPool;
import org.eclipse.jetty.io.MappedByteBufferPool;
import org.eclipse.jetty.util.BufferUtil;
import org.junit.Assert;
import org.junit.Test;
public class DataGenerateParseTest
{
private final byte[] smallContent = new byte[128];
private final byte[] largeContent = new byte[128 * 1024];
private final ByteBufferPool byteBufferPool = new MappedByteBufferPool();
public DataGenerateParseTest()
{
Random random = new Random();
random.nextBytes(smallContent);
random.nextBytes(largeContent);
}
@Test
public void testGenerateParseNoContentNoPadding()
{
testGenerateParseContent(BufferUtil.EMPTY_BUFFER);
}
@Test
public void testGenerateParseSmallContentNoPadding()
{
testGenerateParseContent(ByteBuffer.wrap(smallContent));
}
private void testGenerateParseContent(ByteBuffer content)
{
List<DataFrame> frames = testGenerateParse(content);
Assert.assertEquals(1, frames.size());
DataFrame frame = frames.get(0);
Assert.assertTrue(frame.getStreamId() != 0);
Assert.assertTrue(frame.isEndStream());
Assert.assertEquals(content, frame.getData());
}
@Test
public void testGenerateParseLargeContent()
{
ByteBuffer content = ByteBuffer.wrap(largeContent);
List<DataFrame> frames = testGenerateParse(content);
Assert.assertEquals(8, frames.size());
ByteBuffer aggregate = ByteBuffer.allocate(content.remaining());
for (int i = 1; i <= frames.size(); ++i)
{
DataFrame frame = frames.get(i - 1);
Assert.assertTrue(frame.getStreamId() != 0);
Assert.assertEquals(i == frames.size(), frame.isEndStream());
aggregate.put(frame.getData());
}
aggregate.flip();
Assert.assertEquals(content, aggregate);
}
private List<DataFrame> testGenerateParse(ByteBuffer data)
{
DataGenerator generator = new DataGenerator(new HeaderGenerator());
final List<DataFrame> frames = new ArrayList<>();
Parser parser = new Parser(byteBufferPool, new Parser.Listener.Adapter()
{
@Override
public boolean onData(DataFrame frame)
{
frames.add(frame);
return false;
}
}, 4096, 8192);
// Iterate a few times to be sure generator and parser are properly reset.
for (int i = 0; i < 2; ++i)
{
ByteBufferPool.Lease lease = new ByteBufferPool.Lease(byteBufferPool);
generator.generateData(lease, 13, data.slice(), true, data.remaining());
frames.clear();
for (ByteBuffer buffer : lease.getByteBuffers())
{
parser.parse(buffer);
}
}
return frames;
}
@Test
public void testGenerateParseOneByteAtATime()
{
DataGenerator generator = new DataGenerator(new HeaderGenerator());
final List<DataFrame> frames = new ArrayList<>();
Parser parser = new Parser(byteBufferPool, new Parser.Listener.Adapter()
{
@Override
public boolean onData(DataFrame frame)
{
frames.add(frame);
return false;
}
}, 4096, 8192);
ByteBufferPool.Lease lease = new ByteBufferPool.Lease(byteBufferPool);
ByteBuffer data = ByteBuffer.wrap(largeContent);
generator.generateData(lease, 13, data.slice(), true, data.remaining());
for (ByteBuffer buffer : lease.getByteBuffers())
{
while (buffer.hasRemaining())
{
parser.parse(ByteBuffer.wrap(new byte[]{buffer.get()}));
}
}
Assert.assertEquals(largeContent.length, frames.size());
}
}