testfuncptg.java

java 读写word excel ppt

        
/* ====================================================================
   Licensed to the Apache Software Foundation (ASF) under one or more
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   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

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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.hssf.record.formula;

import junit.framework.TestCase;
import org.apache.poi.hssf.record.TestcaseRecordInputStream;

/**
 * Make sure the FuncPtg performs as expected
 *
 * @author Danny Mui (dmui at apache dot org)
 */

public class TestFuncPtg extends TestCase
{

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


    public static void main( java.lang.String[] args )
    {
        junit.textui.TestRunner.run( TestFuncPtg.class );
    }

    /**
     * Make sure the left overs are re-serialized on excel file reads to avoid
     * the "Warning: Data may have been lost" prompt in excel.
     * <p/>
     * This ptg represents a LEN function extracted from excel
     */

    public void testLeftOvers()
    {
        byte[] fakeData = new byte[4];

        //fakeData[0] = (byte) 0x41;
        fakeData[0] = (byte) 0x20;  //function index
        fakeData[1] = (byte) 0;
        fakeData[2] = (byte) 8;

        FuncPtg ptg = new FuncPtg( new TestcaseRecordInputStream((short)0, (short)fakeData.length, fakeData) );
        assertEquals( "Len formula index is not 32(20H)", (int) 0x20, ptg.getFunctionIndex() );
        assertEquals( "Number of operands in the len formula", 1, ptg.getNumberOfOperands() );
        assertEquals( "Function Name", "LEN", ptg.getName() );
        assertEquals( "Ptg Size", 3, ptg.getSize() );
        //assertEquals("first leftover byte is not 0", (byte)0, ptg.leftOvers[0]);
        //assertEquals("second leftover byte is not 8", (byte)8, ptg.leftOvers[1]);

    }
}