/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF 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 org.apache.poi.poifs.filesystem;
import java.io.*;
import java.util.*;
import junit.framework.*;
import org.apache.poi.util.LittleEndian;
import org.apache.poi.util.LittleEndianConsts;
import org.apache.poi.poifs.property.DocumentProperty;
import org.apache.poi.poifs.storage.RawDataBlock;
import org.apache.poi.poifs.storage.SmallDocumentBlock;
/**
* Class to test POIFSDocument functionality
*
* @author Marc Johnson
*/
public class TestDocument
extends TestCase
{
/**
* Constructor TestDocument
*
* @param name
*/
public TestDocument(String name)
{
super(name);
}
/**
* Integration test -- really about all we can do
*
* @exception IOException
*/
public void testPOIFSDocument()
throws IOException
{
// verify correct number of blocks get created for document
// that is exact multituple of block size
POIFSDocument document;
byte[] array = new byte[ 4096 ];
for (int j = 0; j < array.length; j++)
{
array[ j ] = ( byte ) j;
}
document = new POIFSDocument("foo", new SlowInputStream(new ByteArrayInputStream(array)));
checkDocument(document, array);
// verify correct number of blocks get created for document
// that is not an exact multiple of block size
array = new byte[ 4097 ];
for (int j = 0; j < array.length; j++)
{
array[ j ] = ( byte ) j;
}
document = new POIFSDocument("bar", new ByteArrayInputStream(array));
checkDocument(document, array);
// verify correct number of blocks get created for document
// that is small
array = new byte[ 4095 ];
for (int j = 0; j < array.length; j++)
{
array[ j ] = ( byte ) j;
}
document = new POIFSDocument("_bar", new ByteArrayInputStream(array));
checkDocument(document, array);
// verify correct number of blocks get created for document
// that is rather small
array = new byte[ 199 ];
for (int j = 0; j < array.length; j++)
{
array[ j ] = ( byte ) j;
}
document = new POIFSDocument("_bar2",
new ByteArrayInputStream(array));
checkDocument(document, array);
// verify that output is correct
array = new byte[ 4097 ];
for (int j = 0; j < array.length; j++)
{
array[ j ] = ( byte ) j;
}
document = new POIFSDocument("foobar",
new ByteArrayInputStream(array));
checkDocument(document, array);
document.setStartBlock(0x12345678); // what a big file!!
DocumentProperty property = document.getDocumentProperty();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
property.writeData(stream);
byte[] output = stream.toByteArray();
byte[] array2 =
{
( byte ) 'f', ( byte ) 0, ( byte ) 'o', ( byte ) 0, ( byte ) 'o',
( byte ) 0, ( byte ) 'b', ( byte ) 0, ( byte ) 'a', ( byte ) 0,
( byte ) 'r', ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 14,
( byte ) 0, ( byte ) 2, ( byte ) 1, ( byte ) -1, ( byte ) -1,
( byte ) -1, ( byte ) -1, ( byte ) -1, ( byte ) -1, ( byte ) -1,
( byte ) -1, ( byte ) -1, ( byte ) -1, ( byte ) -1, ( byte ) -1,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0x78, ( byte ) 0x56, ( byte ) 0x34,
( byte ) 0x12, ( byte ) 1, ( byte ) 16, ( byte ) 0, ( byte ) 0,
( byte ) 0, ( byte ) 0, ( byte ) 0, ( byte ) 0
};
assertEquals(array2.length, output.length);
for (int j = 0; j < output.length; j++)
{
assertEquals("Checking property offset " + j, array2[ j ],
output[ j ]);
}
}
private POIFSDocument makeCopy(POIFSDocument document, byte [] input,
byte [] data)
throws IOException
{
POIFSDocument copy = null;
if (input.length >= 4096)
{
RawDataBlock[] blocks =
new RawDataBlock[ (input.length + 511) / 512 ];
ByteArrayInputStream stream = new ByteArrayInputStream(data);
int index = 0;
while (true)
{
RawDataBlock block = new RawDataBlock(stream);
if (block.eof())
{
break;
}
blocks[ index++ ] = block;
}
copy = new POIFSDocument("test" + input.length, blocks,
input.length);
}
else
{
copy = new POIFSDocument(
"test" + input.length,
( SmallDocumentBlock [] ) document.getSmallBlocks(),
input.length);
}
return copy;
}
private void checkDocument(final POIFSDocument document,
final byte [] input)
throws IOException
{
int big_blocks = 0;
int small_blocks = 0;
int total_output = 0;
if (input.length >= 4096)
{
big_blocks = (input.length + 511) / 512;
total_output = big_blocks * 512;
}
else
{
small_blocks = (input.length + 63) / 64;
total_output = 0;
}
checkValues(
big_blocks, small_blocks, total_output,
makeCopy(
document, input,
checkValues(
big_blocks, small_blocks, total_output, document,
input)), input);
}
private byte [] checkValues(int big_blocks, int small_blocks,
int total_output, POIFSDocument document,
byte [] input)
throws IOException
{
assertEquals(document, document.getDocumentProperty().getDocument());
int increment = ( int ) Math.sqrt(input.length);
for (int j = 1; j <= input.length; j += increment)
{
byte[] buffer = new byte[ j ];
int offset = 0;
for (int k = 0; k < (input.length / j); k++)
{
document.read(buffer, offset);
for (int n = 0; n < buffer.length; n++)
{
assertEquals("checking byte " + (k * j) + n,
input[ (k * j) + n ], buffer[ n ]);
}
offset += j;
}
}
assertEquals(big_blocks, document.countBlocks());
assertEquals(small_blocks, document.getSmallBlocks().length);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
document.writeBlocks(stream);
byte[] output = stream.toByteArray();
assertEquals(total_output, output.length);
int limit = Math.min(total_output, input.length);
for (int j = 0; j < limit; j++)
{
assertEquals("Checking document offset " + j, input[ j ],
output[ j ]);
}
for (int j = limit; j < output.length; j++)
{
assertEquals("Checking document offset " + j, ( byte ) -1,
output[ j ]);
}
return output;
}
/**
* main method to run the unit tests
*
* @param ignored_args
*/
public static void main(String [] ignored_args)
{
System.out
.println("Testing org.apache.poi.poifs.filesystem.POIFSDocument");
junit.textui.TestRunner.run(TestDocument.class);
}
}
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