testsstdeserializer.java

java 读写word excel ppt

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   this work for additional information regarding copyright ownership.
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   (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.hssf.record;

import org.apache.poi.util.HexRead;
import org.apache.poi.util.IntMapper;
import org.apache.poi.hssf.record.TestcaseRecordInputStream;

import java.io.File;

import junit.framework.TestCase;

/**
 * Exercise the SSTDeserializer class.
 *
 * @author Glen Stampoultzis (glens at apache.org)
 */
public class TestSSTDeserializer
        extends TestCase
{
    private String _test_file_path;
    private static final String _test_file_path_property = "HSSF.testdata.path";

    public TestSSTDeserializer( String s )
    {
        super( s );
    }

    protected void setUp() throws Exception
    {
        _test_file_path = System.getProperty( _test_file_path_property );
    }

    private byte[] joinArray(byte[] array1, byte[] array2) {
      byte[] bigArray = new byte[array1.length+array2.length];
      System.arraycopy(array1, 0, bigArray, 0, array1.length);
      System.arraycopy(array2, 0, bigArray, array1.length, array2.length);
      return bigArray;    
    }

    public void testSpanRichTextToPlainText()
            throws Exception
    {
      byte[] header = HexRead.readData( _test_file_path + File.separator + "richtextdata.txt", "header" );
        byte[] continueBytes = HexRead.readData( _test_file_path + File.separator + "richtextdata.txt", "continue1" );
      continueBytes = TestcaseRecordInputStream.mergeDataAndSid(ContinueRecord.sid, (short)continueBytes.length, continueBytes);
      TestcaseRecordInputStream in = new TestcaseRecordInputStream((short)0, (short)header.length, joinArray(header, continueBytes));
      

        IntMapper strings = new IntMapper();
        SSTDeserializer deserializer = new SSTDeserializer( strings );
        deserializer.manufactureStrings(1, in );

        assertEquals( "At a dinner party orAt At At ", strings.get( 0 ) + "" );
    }

    public void testContinuationWithNoOverlap()
            throws Exception
    {
        byte[] header = HexRead.readData( _test_file_path + File.separator + "evencontinuation.txt", "header" );
        byte[] continueBytes = HexRead.readData( _test_file_path + File.separator + "evencontinuation.txt", "continue1" );
        continueBytes = TestcaseRecordInputStream.mergeDataAndSid(ContinueRecord.sid, (short)continueBytes.length, continueBytes);
        TestcaseRecordInputStream in = new TestcaseRecordInputStream((short)0, (short)header.length, joinArray(header, continueBytes));

        IntMapper strings = new IntMapper();
        SSTDeserializer deserializer = new SSTDeserializer( strings );
        deserializer.manufactureStrings( 2, in);

        assertEquals( "At a dinner party or", strings.get( 0 ) + "" );
        assertEquals( "At a dinner party", strings.get( 1 ) + "" );
    }

    /**
     * Strings can actually span across more than one continuation.
     */
    public void testStringAcross2Continuations()
            throws Exception
    {
        byte[] header = HexRead.readData( _test_file_path + File.separator + "stringacross2continuations.txt", "header" );
        byte[] continue1 = HexRead.readData( _test_file_path + File.separator + "stringacross2continuations.txt", "continue1" );
        continue1 = TestcaseRecordInputStream.mergeDataAndSid(ContinueRecord.sid, (short)continue1.length, continue1);
        byte[] continue2 = HexRead.readData( _test_file_path + File.separator + "stringacross2continuations.txt", "continue2" );
        continue2 = TestcaseRecordInputStream.mergeDataAndSid(ContinueRecord.sid, (short)continue2.length, continue2);
        
        byte[] bytes = joinArray(header, continue1);
        bytes = joinArray(bytes, continue2);
        TestcaseRecordInputStream in = new TestcaseRecordInputStream((short)0, (short)header.length, bytes);

        IntMapper strings = new IntMapper();
        SSTDeserializer deserializer = new SSTDeserializer( strings );
        deserializer.manufactureStrings( 2, in);

        assertEquals( "At a dinner party or", strings.get(  0 ) + "" );
        assertEquals( "At a dinner partyAt a dinner party", strings.get( 1 ) + "" );
    }

    public void testExtendedStrings()
            throws Exception
    {
        byte[] header = HexRead.readData( _test_file_path + File.separator + "extendedtextstrings.txt", "rich-header" );
        byte[] continueBytes = HexRead.readData( _test_file_path + File.separator + "extendedtextstrings.txt", "rich-continue1" );
        continueBytes = TestcaseRecordInputStream.mergeDataAndSid(ContinueRecord.sid, (short)continueBytes.length, continueBytes);
        TestcaseRecordInputStream in = new TestcaseRecordInputStream((short)0, (short)header.length, joinArray(header, continueBytes));
        
        IntMapper strings = new IntMapper();
        SSTDeserializer deserializer = new SSTDeserializer( strings );
        deserializer.manufactureStrings( 1, in);

        assertEquals( "At a dinner party orAt At At ", strings.get( 0  ) + "" );


        header = HexRead.readData( _test_file_path + File.separator + "extendedtextstrings.txt", "norich-header" );
        continueBytes = HexRead.readData( _test_file_path + File.separator + "extendedtextstrings.txt", "norich-continue1" );
        continueBytes = TestcaseRecordInputStream.mergeDataAndSid(ContinueRecord.sid, (short)continueBytes.length, continueBytes);
        in = new TestcaseRecordInputStream((short)0, (short)header.length, joinArray(header, continueBytes));
        
        strings = new IntMapper();
        deserializer = new SSTDeserializer( strings );
        deserializer.manufactureStrings( 1, in);

        assertEquals( "At a dinner party orAt At At ", strings.get( 0 ) + "" );

    }

}