testformularecord.java

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package org.apache.poi.hssf.record;


import junit.framework.TestCase;

/**
 * Tests the serialization and deserialization of the FormulaRecord
 * class works correctly.  
 *
 * @author Andrew C. Oliver 
 */
public class TestFormulaRecord
        extends TestCase
{

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

    public void testCreateFormulaRecord () {
        FormulaRecord record = new FormulaRecord();
        record.setColumn((short)0);
        //record.setRow((short)1);
        record.setRow(1);
        record.setXFIndex((short)4);
        
        assertEquals(record.getColumn(),(short)0);
        //assertEquals(record.getRow(),(short)1);
        assertEquals((short)record.getRow(),(short)1);
        assertEquals(record.getXFIndex(),(short)4);
    }
    
    /**
     * Make sure a NAN value is preserved
     * This formula record is a representation of =1/0 at row 0, column 0 
     */
    public void testCheckNanPreserve() {
    	byte[] formulaByte = new byte[29];
    	for (int i = 0; i < formulaByte.length; i++) formulaByte[i] = (byte)0;
    	formulaByte[4] = (byte)0x0F;
		formulaByte[6] = (byte)0x02;
		formulaByte[8] = (byte)0x07;
		formulaByte[12] = (byte)0xFF;
		formulaByte[13] = (byte)0xFF;
		formulaByte[18] = (byte)0xE0;
		formulaByte[19] = (byte)0xFC;
		formulaByte[20] = (byte)0x07;
		formulaByte[22] = (byte)0x1E;
		formulaByte[23] = (byte)0x01;
		formulaByte[25] = (byte)0x1E;
		formulaByte[28] = (byte)0x06;
    	
		FormulaRecord record = new FormulaRecord(FormulaRecord.sid, (short)29, formulaByte);
		assertEquals("Row", 0, record.getRow());
		assertEquals("Column", 0, record.getColumn());		
		assertTrue("Value is not NaN", Double.isNaN(record.getValue()));
		
		byte[] output = record.serialize();
		assertEquals("Output size", 33, output.length); //includes sid+recordlength
		
		for (int i = 5; i < 13;i++) {
			assertEquals("FormulaByte NaN doesn't match", formulaByte[i], output[i+4]);
		}
		
    }
    
    /**
     * Tests to see if the shared formula cells properly reserialize the expPtg
     *
     */
    public void testExpFormula() {
    	byte[] formulaByte = new byte[27];
    	
		for (int i = 0; i < formulaByte.length; i++) formulaByte[i] = (byte)0;
    	
    	formulaByte[4] =(byte)0x0F;
		formulaByte[14]=(byte)0x08;
		formulaByte[18]=(byte)0xE0;
		formulaByte[19]=(byte)0xFD;
		formulaByte[20]=(byte)0x05;
		formulaByte[22]=(byte)0x01;
		FormulaRecord record = new FormulaRecord(FormulaRecord.sid, (short)27, formulaByte);
		assertEquals("Row", 0, record.getRow());
		assertEquals("Column", 0, record.getColumn());
		byte[] output = record.serialize();
		assertEquals("Output size", 31, output.length); //includes sid+recordlength
    	assertEquals("Offset 22", 1, output[26]);
    }
    
    
    public static void main(String [] ignored_args)
    {
        String filename = System.getProperty("HSSF.testdata.path");

        System.out
            .println("Testing org.apache.poi.hssf.record.FormulaRecord");
        junit.textui.TestRunner.run(TestFormulaRecord.class);
    }
    
    
}