src/testcases/org/apache/poi/poifs/storage/TestRawDataBlockList.java

/* ====================================================================
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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
   the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

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   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 org.apache.poi.poifs.common.POIFSConstants;
import org.apache.poi.util.DummyPOILogger;
import org.apache.poi.util.POILogFactory;

import junit.framework.*;

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

public class TestRawDataBlockList
    extends TestCase
{
	static {
        // We always want to use our own
        //  logger
        System.setProperty(
        		"org.apache.poi.util.POILogger",
        		"org.apache.poi.util.DummyPOILogger"
        );
	}

    /**
     * Constructor TestRawDataBlockList
     *
     * @param name
     */
    public TestRawDataBlockList(String name)
    {
        super(name);
    }

    /**
     * Test creating a normal RawDataBlockList
     *
     * @exception IOException
     */
    public void testNormalConstructor()
        throws IOException
    {
        byte[] data = new byte[ 2560 ];

        for (int j = 0; j < 2560; j++)
        {
            data[ j ] = ( byte ) j;
        }
        new RawDataBlockList(new ByteArrayInputStream(data), POIFSConstants.BIG_BLOCK_SIZE);
    }

    /**
     * Test creating an empty RawDataBlockList
     *
     * @exception IOException
     */

    public void testEmptyConstructor()
        throws IOException
    {
        new RawDataBlockList(new ByteArrayInputStream(new byte[ 0 ]), POIFSConstants.BIG_BLOCK_SIZE);
    }

    /**
     * Test creating a short RawDataBlockList
     */

    public void testShortConstructor() throws Exception
    {
        // Get the logger to be used
        DummyPOILogger logger = (DummyPOILogger)POILogFactory.getLogger(
        		RawDataBlock.class
        );
        assertEquals(0, logger.logged.size());
        
        // Test for various short sizes
        for (int k = 2049; k < 2560; k++)
        {
            byte[] data = new byte[ k ];

            for (int j = 0; j < k; j++)
            {
                data[ j ] = ( byte ) j;
            }

            // Check we logged the error
            logger.reset();
            new RawDataBlockList(new ByteArrayInputStream(data), POIFSConstants.BIG_BLOCK_SIZE);
            assertEquals(1, logger.logged.size());
        }
    }

    /**
     * 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.RawDataBlockList");
        junit.textui.TestRunner.run(TestRawDataBlockList.class);
    }
}