testpropertyblock.java

EXCEL read and write

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   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
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       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,
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   See the License for the specific language governing permissions and
   limitations under the License.
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package org.apache.poi.poifs.storage;

import java.io.*;

import java.util.*;

import junit.framework.*;

import org.apache.poi.poifs.property.Property;

/**
 * Class to test PropertyBlock functionality
 *
 * @author Marc Johnson
 */

public class TestPropertyBlock
    extends TestCase
{

    /**
     * Constructor TestPropertyBlock
     *
     * @param name
     */

    public TestPropertyBlock(String name)
    {
        super(name);
    }

    /**
     * Test constructing PropertyBlocks
     *
     * @exception IOException
     */

    public void testCreatePropertyBlocks()
        throws IOException
    {

        // test with 0 properties
        List            properties = new ArrayList();
        BlockWritable[] blocks     =
            PropertyBlock.createPropertyBlockArray(properties);

        assertEquals(0, blocks.length);

        // test with 1 property
        properties.add(new LocalProperty("Root Entry"));
        blocks = PropertyBlock.createPropertyBlockArray(properties);
        assertEquals(1, blocks.length);
        byte[] testblock = new byte[ 512 ];

        for (int j = 0; j < 4; j++)
        {
            setDefaultBlock(testblock, j);
        }
        testblock[ 0x0000 ] = ( byte ) 'R';
        testblock[ 0x0002 ] = ( byte ) 'o';
        testblock[ 0x0004 ] = ( byte ) 'o';
        testblock[ 0x0006 ] = ( byte ) 't';
        testblock[ 0x0008 ] = ( byte ) ' ';
        testblock[ 0x000A ] = ( byte ) 'E';
        testblock[ 0x000C ] = ( byte ) 'n';
        testblock[ 0x000E ] = ( byte ) 't';
        testblock[ 0x0010 ] = ( byte ) 'r';
        testblock[ 0x0012 ] = ( byte ) 'y';
        testblock[ 0x0040 ] = ( byte ) 22;
        verifyCorrect(blocks, testblock);

        // test with 3 properties
        properties.add(new LocalProperty("workbook"));
        properties.add(new LocalProperty("summary"));
        blocks = PropertyBlock.createPropertyBlockArray(properties);
        assertEquals(1, blocks.length);
        testblock[ 0x0080 ] = ( byte ) 'w';
        testblock[ 0x0082 ] = ( byte ) 'o';
        testblock[ 0x0084 ] = ( byte ) 'r';
        testblock[ 0x0086 ] = ( byte ) 'k';
        testblock[ 0x0088 ] = ( byte ) 'b';
        testblock[ 0x008A ] = ( byte ) 'o';
        testblock[ 0x008C ] = ( byte ) 'o';
        testblock[ 0x008E ] = ( byte ) 'k';
        testblock[ 0x00C0 ] = ( byte ) 18;
        testblock[ 0x0100 ] = ( byte ) 's';
        testblock[ 0x0102 ] = ( byte ) 'u';
        testblock[ 0x0104 ] = ( byte ) 'm';
        testblock[ 0x0106 ] = ( byte ) 'm';
        testblock[ 0x0108 ] = ( byte ) 'a';
        testblock[ 0x010A ] = ( byte ) 'r';
        testblock[ 0x010C ] = ( byte ) 'y';
        testblock[ 0x0140 ] = ( byte ) 16;
        verifyCorrect(blocks, testblock);

        // test with 4 properties
        properties.add(new LocalProperty("wintery"));
        blocks = PropertyBlock.createPropertyBlockArray(properties);
        assertEquals(1, blocks.length);
        testblock[ 0x0180 ] = ( byte ) 'w';
        testblock[ 0x0182 ] = ( byte ) 'i';
        testblock[ 0x0184 ] = ( byte ) 'n';
        testblock[ 0x0186 ] = ( byte ) 't';
        testblock[ 0x0188 ] = ( byte ) 'e';
        testblock[ 0x018A ] = ( byte ) 'r';
        testblock[ 0x018C ] = ( byte ) 'y';
        testblock[ 0x01C0 ] = ( byte ) 16;
        verifyCorrect(blocks, testblock);

        // test with 5 properties
        properties.add(new LocalProperty("foo"));
        blocks = PropertyBlock.createPropertyBlockArray(properties);
        assertEquals(2, blocks.length);
        testblock = new byte[ 1024 ];
        for (int j = 0; j < 8; j++)
        {
            setDefaultBlock(testblock, j);
        }
        testblock[ 0x0000 ] = ( byte ) 'R';
        testblock[ 0x0002 ] = ( byte ) 'o';
        testblock[ 0x0004 ] = ( byte ) 'o';
        testblock[ 0x0006 ] = ( byte ) 't';
        testblock[ 0x0008 ] = ( byte ) ' ';
        testblock[ 0x000A ] = ( byte ) 'E';
        testblock[ 0x000C ] = ( byte ) 'n';
        testblock[ 0x000E ] = ( byte ) 't';
        testblock[ 0x0010 ] = ( byte ) 'r';
        testblock[ 0x0012 ] = ( byte ) 'y';
        testblock[ 0x0040 ] = ( byte ) 22;
        testblock[ 0x0080 ] = ( byte ) 'w';
        testblock[ 0x0082 ] = ( byte ) 'o';
        testblock[ 0x0084 ] = ( byte ) 'r';
        testblock[ 0x0086 ] = ( byte ) 'k';
        testblock[ 0x0088 ] = ( byte ) 'b';
        testblock[ 0x008A ] = ( byte ) 'o';
        testblock[ 0x008C ] = ( byte ) 'o';
        testblock[ 0x008E ] = ( byte ) 'k';
        testblock[ 0x00C0 ] = ( byte ) 18;
        testblock[ 0x0100 ] = ( byte ) 's';
        testblock[ 0x0102 ] = ( byte ) 'u';
        testblock[ 0x0104 ] = ( byte ) 'm';
        testblock[ 0x0106 ] = ( byte ) 'm';
        testblock[ 0x0108 ] = ( byte ) 'a';
        testblock[ 0x010A ] = ( byte ) 'r';
        testblock[ 0x010C ] = ( byte ) 'y';
        testblock[ 0x0140 ] = ( byte ) 16;
        testblock[ 0x0180 ] = ( byte ) 'w';
        testblock[ 0x0182 ] = ( byte ) 'i';
        testblock[ 0x0184 ] = ( byte ) 'n';
        testblock[ 0x0186 ] = ( byte ) 't';
        testblock[ 0x0188 ] = ( byte ) 'e';
        testblock[ 0x018A ] = ( byte ) 'r';
        testblock[ 0x018C ] = ( byte ) 'y';
        testblock[ 0x01C0 ] = ( byte ) 16;
        testblock[ 0x0200 ] = ( byte ) 'f';
        testblock[ 0x0202 ] = ( byte ) 'o';
        testblock[ 0x0204 ] = ( byte ) 'o';
        testblock[ 0x0240 ] = ( byte ) 8;
        verifyCorrect(blocks, testblock);
    }

    private void setDefaultBlock(byte [] testblock, int j)
    {
        int base  = j * 128;
        int index = 0;

        for (; index < 0x40; index++)
        {
            testblock[ base++ ] = ( byte ) 0;
        }
        testblock[ base++ ] = ( byte ) 2;
        testblock[ base++ ] = ( byte ) 0;
        index               += 2;
        for (; index < 0x44; index++)
        {
            testblock[ base++ ] = ( byte ) 0;
        }
        for (; index < 0x50; index++)
        {
            testblock[ base++ ] = ( byte ) 0xff;
        }
        for (; index < 0x80; index++)
        {
            testblock[ base++ ] = ( byte ) 0;
        }
    }

    private void verifyCorrect(BlockWritable [] blocks, byte [] testblock)
        throws IOException
    {
        ByteArrayOutputStream stream = new ByteArrayOutputStream(512
                                           * blocks.length);

        for (int j = 0; j < blocks.length; j++)
        {
            blocks[ j ].writeBlocks(stream);
        }
        byte[] output = stream.toByteArray();

        assertEquals(testblock.length, output.length);
        for (int j = 0; j < testblock.length; j++)
        {
            assertEquals("mismatch at offset " + j, testblock[ j ],
                         output[ j ]);
        }
    }

    /**
     * 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.PropertyBlock");
        junit.textui.TestRunner.run(TestPropertyBlock.class);
    }
}