/* ====================================================================
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.storage;
import java.io.*;
import java.util.*;
import junit.framework.*;
/**
* Class to test SmallDocumentBlock functionality
*
* @author Marc Johnson
*/
public class TestSmallDocumentBlock
extends TestCase
{
static final private byte[] _testdata;
static final private int _testdata_size = 2999;
static
{
_testdata = new byte[ _testdata_size ];
for (int j = 0; j < _testdata.length; j++)
{
_testdata[ j ] = ( byte ) j;
}
}
;
/**
* constructor
*
* @param name
*/
public TestSmallDocumentBlock(String name)
{
super(name);
}
/**
* Test conversion from DocumentBlocks
*
* @exception IOException
*/
public void testConvert1()
throws IOException
{
ByteArrayInputStream stream = new ByteArrayInputStream(_testdata);
List documents = new ArrayList();
while (true)
{
DocumentBlock block = new DocumentBlock(stream);
documents.add(block);
if (block.partiallyRead())
{
break;
}
}
SmallDocumentBlock[] results =
SmallDocumentBlock
.convert(( BlockWritable [] ) documents
.toArray(new DocumentBlock[ 0 ]), _testdata_size);
assertEquals("checking correct result size: ",
(_testdata_size + 63) / 64, results.length);
ByteArrayOutputStream output = new ByteArrayOutputStream();
for (int j = 0; j < results.length; j++)
{
results[ j ].writeBlocks(output);
}
byte[] output_array = output.toByteArray();
assertEquals("checking correct output size: ", 64 * results.length,
output_array.length);
int index = 0;
for (; index < _testdata_size; index++)
{
assertEquals("checking output " + index, _testdata[ index ],
output_array[ index ]);
}
for (; index < output_array.length; index++)
{
assertEquals("checking output " + index, ( byte ) 0xff,
output_array[ index ]);
}
}
/**
* Test conversion from byte array
*
* @exception IOException;
*
* @exception IOException
*/
public void testConvert2()
throws IOException
{
for (int j = 0; j < 320; j++)
{
byte[] array = new byte[ j ];
for (int k = 0; k < j; k++)
{
array[ k ] = ( byte ) k;
}
SmallDocumentBlock[] blocks = SmallDocumentBlock.convert(array,
319);
assertEquals(5, blocks.length);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
for (int k = 0; k < blocks.length; k++)
{
blocks[ k ].writeBlocks(stream);
}
stream.close();
byte[] output = stream.toByteArray();
for (int k = 0; k < array.length; k++)
{
assertEquals(String.valueOf(k), array[ k ], output[ k ]);
}
for (int k = array.length; k < 320; k++)
{
assertEquals(String.valueOf(k), ( byte ) 0xFF, output[ k ]);
}
}
}
/**
* Test read method
*
* @exception IOException
*/
public void testRead()
throws IOException
{
ByteArrayInputStream stream = new ByteArrayInputStream(_testdata);
List documents = new ArrayList();
while (true)
{
DocumentBlock block = new DocumentBlock(stream);
documents.add(block);
if (block.partiallyRead())
{
break;
}
}
SmallDocumentBlock[] blocks =
SmallDocumentBlock
.convert(( BlockWritable [] ) documents
.toArray(new DocumentBlock[ 0 ]), _testdata_size);
for (int j = 1; j <= _testdata_size; j += 38)
{
byte[] buffer = new byte[ j ];
int offset = 0;
for (int k = 0; k < (_testdata_size / j); k++)
{
SmallDocumentBlock.read(blocks, buffer, offset);
for (int n = 0; n < buffer.length; n++)
{
assertEquals("checking byte " + (k * j) + n,
_testdata[ (k * j) + n ], buffer[ n ]);
}
offset += j;
}
}
}
/**
* test fill
*
* @exception IOException
*/
public void testFill()
throws IOException
{
for (int j = 0; j <= 8; j++)
{
List foo = new ArrayList();
for (int k = 0; k < j; k++)
{
foo.add(new Object());
}
int result = SmallDocumentBlock.fill(foo);
assertEquals("correct big block count: ", (j + 7) / 8, result);
assertEquals("correct small block count: ", 8 * result,
foo.size());
for (int m = j; m < foo.size(); m++)
{
BlockWritable block = ( BlockWritable ) foo.get(m);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
block.writeBlocks(stream);
byte[] output = stream.toByteArray();
assertEquals("correct output size (block[ " + m + " ]): ",
64, output.length);
for (int n = 0; n < 64; n++)
{
assertEquals("correct value (block[ " + m + " ][ " + n
+ " ]): ", ( byte ) 0xff, output[ n ]);
}
}
}
}
/**
* test calcSize
*/
public void testCalcSize()
{
for (int j = 0; j < 10; j++)
{
assertEquals("testing " + j, j * 64,
SmallDocumentBlock.calcSize(j));
}
}
/**
* test extract method
*
* @exception IOException
*/
public void testExtract()
throws IOException
{
byte[] data = new byte[ 512 ];
int offset = 0;
for (int j = 0; j < 8; j++)
{
for (int k = 0; k < 64; k++)
{
data[ offset++ ] = ( byte ) (k + j);
}
}
RawDataBlock[] blocks =
{
new RawDataBlock(new ByteArrayInputStream(data))
};
List output = SmallDocumentBlock.extract(blocks);
Iterator iter = output.iterator();
offset = 0;
while (iter.hasNext())
{
byte[] out_data = (( SmallDocumentBlock ) iter.next()).getData();
assertEquals("testing block at offset " + offset, 64,
out_data.length);
for (int j = 0; j < out_data.length; j++)
{
assertEquals("testing byte at offset " + offset,
data[ offset ], out_data[ j ]);
offset++;
}
}
}
/**
* 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.storage.SmallDocumentBlock");
junit.textui.TestRunner.run(TestSmallDocumentBlock.class);
}
}
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