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//
// ========================================================================
// Copyright (c) 1995-2016 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.hpack;
import java.nio.ByteBuffer;
import java.util.Locale;
import org.eclipse.jetty.util.BufferUtil;
import org.eclipse.jetty.util.TypeUtil;
import org.junit.Assert;
import org.junit.Test;
public class HuffmanTest
{
String[][] tests =
{
{"D.4.1","f1e3c2e5f23a6ba0ab90f4ff","www.example.com"},
{"D.4.2","a8eb10649cbf","no-cache"},
{"D.6.1k","6402","302"},
{"D.6.1v","aec3771a4b","private"},
{"D.6.1d","d07abe941054d444a8200595040b8166e082a62d1bff","Mon, 21 Oct 2013 20:13:21 GMT"},
{"D.6.1l","9d29ad171863c78f0b97c8e9ae82ae43d3","https://www.example.com"},
{"D.6.2te","640cff","303"},
};
@Test
public void testDecode() throws Exception
{
for (String[] test:tests)
{
byte[] encoded=TypeUtil.fromHexString(test[1]);
String decoded=Huffman.decode(ByteBuffer.wrap(encoded));
Assert.assertEquals(test[0],test[2],decoded);
}
}
@Test
public void testDecodeTrailingFF() throws Exception
{
for (String[] test:tests)
{
byte[] encoded=TypeUtil.fromHexString(test[1]+"FF");
String decoded=Huffman.decode(ByteBuffer.wrap(encoded));
Assert.assertEquals(test[0],test[2],decoded);
}
}
@Test
public void testEncode() throws Exception
{
for (String[] test:tests)
{
ByteBuffer buf = BufferUtil.allocate(1024);
int pos=BufferUtil.flipToFill(buf);
Huffman.encode(buf,test[2]);
BufferUtil.flipToFlush(buf,pos);
String encoded=TypeUtil.toHexString(BufferUtil.toArray(buf)).toLowerCase(Locale.ENGLISH);
Assert.assertEquals(test[0],test[1],encoded);
Assert.assertEquals(test[1].length()/2,Huffman.octetsNeeded(test[2]));
}
}
@Test
public void testEncode8859Only() throws Exception
{
char bad[] = {(char)128,(char)0,(char)-1,' '-1};
for (int i=0;i<bad.length;i++)
{
String s="bad '"+bad[i]+"'";
try
{
Huffman.octetsNeeded(s);
Assert.fail("i="+i);
}
catch(IllegalArgumentException e)
{
}
try
{
Huffman.encode(BufferUtil.allocate(32),s);
Assert.fail("i="+i);
}
catch(IllegalArgumentException e)
{
}
}
}
}
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