testhssfrow.java

Office格式转换代码

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package org.apache.poi.hssf.usermodel;

import junit.framework.TestCase;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

/**
 * Test HSSFRow is okay.
 *
 * @author Glen Stampoultzis (glens at apache.org)
 */
public class TestHSSFRow
        extends TestCase
{
    public TestHSSFRow(String s)
    {
        super(s);
    }

    public void testLastAndFirstColumns()
            throws Exception
    {
        HSSFWorkbook workbook = new HSSFWorkbook();
        HSSFSheet sheet = workbook.createSheet();
        HSSFRow row = sheet.createRow((short) 0);
        assertEquals(-1, row.getFirstCellNum());
        assertEquals(-1, row.getLastCellNum());

        row.createCell((short) 2);
        assertEquals(2, row.getFirstCellNum());
        assertEquals(2, row.getLastCellNum());

        row.createCell((short) 1);
        assertEquals(1, row.getFirstCellNum());
        assertEquals(2, row.getLastCellNum());

    }

    public void testRemoveCell()
            throws Exception
    {
        HSSFWorkbook workbook = new HSSFWorkbook();
        HSSFSheet sheet = workbook.createSheet();
        HSSFRow row = sheet.createRow((short) 0);
        assertEquals(-1, row.getLastCellNum());
        assertEquals(-1, row.getFirstCellNum());
        row.createCell((short) 1);
        assertEquals(1, row.getLastCellNum());
        assertEquals(1, row.getFirstCellNum());
        row.createCell((short) 3);
        assertEquals(3, row.getLastCellNum());
        assertEquals(1, row.getFirstCellNum());
        row.removeCell(row.getCell((short) 3));
        assertEquals(1, row.getLastCellNum());
        assertEquals(1, row.getFirstCellNum());
        row.removeCell(row.getCell((short) 1));
        assertEquals(-1, row.getLastCellNum());
        assertEquals(-1, row.getFirstCellNum());

        // check the row record actually writes it out as 0's
        byte[] data = new byte[100];
        row.getRowRecord().serialize(0, data);
        assertEquals(0, data[6]);
        assertEquals(0, data[8]);

        File file = File.createTempFile("XXX", "XLS");
        FileOutputStream stream = new FileOutputStream(file);
        workbook.write(stream);
        stream.close();
        FileInputStream inputStream = new FileInputStream(file);
        workbook = new HSSFWorkbook(inputStream);
        sheet = workbook.getSheetAt(0);
        stream.close();
        file.delete();
        assertEquals(-1, sheet.getRow((short) 0).getLastCellNum());
        assertEquals(-1, sheet.getRow((short) 0).getFirstCellNum());


    }
}