poi/src/scratchpad/testcases/org/apache/poi/hslf/model/TestTable.java

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   this work for additional information regarding copyright ownership.
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package org.apache.poi.hslf.model;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

import junit.framework.TestCase;

import org.apache.poi.POIDataSamples;
import org.apache.poi.hslf.HSLFSlideShow;
import org.apache.poi.hslf.extractor.PowerPointExtractor;
import org.apache.poi.hslf.record.TextHeaderAtom;
import org.apache.poi.hslf.usermodel.SlideShow;
import org.junit.Test;

/**
 * Test <code>Table</code> object.
 *
 * @author Yegor Kozlov
 */
public final class TestTable extends TestCase {
    private static POIDataSamples _slTests = POIDataSamples.getSlideShowInstance();

    /**
     * Test that ShapeFactory works properly and returns <code>Table</code>
     */
    public void testShapeFactory() throws Exception {
        SlideShow ppt = new SlideShow();

        Slide slide = ppt.createSlide();

        Table tbl = new Table(2, 5);
        slide.addShape(tbl);

        TableCell cell = tbl.getCell(0, 0);
        //table cells have type=TextHeaderAtom.OTHER_TYPE, see bug #46033
        assertEquals(TextHeaderAtom.OTHER_TYPE, cell.getTextRun().getRunType());

        assertTrue(slide.getShapes()[0] instanceof Table);
        Table tbl2 = (Table)slide.getShapes()[0];
        assertEquals(tbl.getNumberOfColumns(), tbl2.getNumberOfColumns());
        assertEquals(tbl.getNumberOfRows(), tbl2.getNumberOfRows());

        ByteArrayOutputStream out = new ByteArrayOutputStream();
        ppt.write(out);
        out.close();

        ppt = new SlideShow(new ByteArrayInputStream(out.toByteArray()));
        slide = ppt.getSlides()[0];
        assertTrue(slide.getShapes()[0] instanceof Table);
        Table tbl3 = (Table)slide.getShapes()[0];
        assertEquals(tbl.getNumberOfColumns(), tbl3.getNumberOfColumns());
        assertEquals(tbl.getNumberOfRows(), tbl3.getNumberOfRows());
    }

    /**
     * Error constructing Table when rownum=1
     */
    public void test45889(){
        SlideShow ppt = new SlideShow();
        Slide slide = ppt.createSlide();
        Shape[] shapes;
        Table tbl1 = new Table(1, 5);
        assertEquals(5, tbl1.getNumberOfColumns());
        assertEquals(1, tbl1.getNumberOfRows());
        slide.addShape(tbl1);

        shapes = slide.getShapes();
        assertEquals(1, shapes.length);

        Table tbl2 = (Table)shapes[0];
        assertSame(tbl1.getSpContainer(), tbl2.getSpContainer());

        assertEquals(tbl1.getNumberOfColumns(), tbl2.getNumberOfColumns());
        assertEquals(tbl1.getNumberOfRows(), tbl2.getNumberOfRows());
    }

    public void testIllegalCOnstruction(){
        try {
            new Table(0, 5);
            fail("Table(rownum, colnum) must throw IllegalArgumentException if any of tghe arguments is less than 1");
        } catch (IllegalArgumentException e){

        }
        try {
            new Table(5, 0);
            fail("Table(rownum, colnum) must throw IllegalArgumentException if any of tghe arguments is less than 1");
        } catch (IllegalArgumentException e){

        }
    }
    
    /**
     * Bug 57820: initTable throws NullPointerException
     * when the table is positioned with its top at -1
     */
    @Test
    public void test57820() throws Exception {
        SlideShow ppt = new SlideShow(new HSLFSlideShow(_slTests.openResourceAsStream("bug57820-initTableNullRefrenceException.ppt")));

        Slide[] slides = ppt.getSlides();
        assertEquals(1, slides.length);

        Shape[] shapes = slides[0].getShapes(); //throws NullPointerException

        Table tbl = null;
        for(int idx = 0; idx < shapes.length; idx++) {
            if(shapes[idx] instanceof Table) {
                tbl = (Table)shapes[idx];
                break;
            }
        }

        assertNotNull(tbl);

        assertEquals(-1, tbl.getAnchor().y);
    }
}