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package org.apache.poi.hslf.model;
import static org.junit.Assert.assertEquals;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.util.List;
import org.apache.poi.POIDataSamples;
import org.apache.poi.hslf.usermodel.*;
import org.apache.poi.poifs.filesystem.DocumentEntry;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.junit.Before;
import org.junit.Test;
/**
* Tests that if we load something up, get a TextRun, set the text
* to be the same as it was before, and write it all back out again,
* that we don't break anything in the process.
*
* @author Nick Burch (nick at torchbox dot com)
*/
public final class TestTextRunReWrite {
// HSLFSlideShow primed on the test data
private HSLFSlideShowImpl hss;
// HSLFSlideShow primed on the test data
private HSLFSlideShow ss;
// POIFS primed on the test data
private POIFSFileSystem pfs;
/**
* Load up a test PPT file with rich data
*/
@Before
public void setUp() throws Exception {
POIDataSamples slTests = POIDataSamples.getSlideShowInstance();
String filename = "Single_Coloured_Page_With_Fonts_and_Alignments.ppt";
pfs = new POIFSFileSystem(slTests.openResourceAsStream(filename));
hss = new HSLFSlideShowImpl(pfs);
ss = new HSLFSlideShow(hss);
}
@Test
public void testWritesOutTheSameNonRich() throws Exception {
// Ensure the text lengths are as we'd expect to start with
assertEquals(1, ss.getSlides().size());
assertEquals(2, ss.getSlides().get(0).getTextParagraphs().size());
// Grab the first text run on the first sheet
List<HSLFTextParagraph> tr1 = ss.getSlides().get(0).getTextParagraphs().get(0);
List<HSLFTextParagraph> tr2 = ss.getSlides().get(0).getTextParagraphs().get(1);
assertEquals(30, HSLFTextParagraph.getRawText(tr1).length());
assertEquals(179, HSLFTextParagraph.getRawText(tr2).length());
assertEquals(1, tr1.size());
assertEquals(30, HSLFTextParagraph.getText(tr1).length());
assertEquals(30, HSLFTextParagraph.getRawText(tr1).length());
assertEquals(31, tr1.get(0).getTextRuns().get(0).getCharacterStyle().getCharactersCovered());
assertEquals(31, tr1.get(0).getParagraphStyle().getCharactersCovered());
// Set the text to be as it is now
HSLFTextParagraph.setText(tr1, HSLFTextParagraph.getRawText(tr1));
tr1 = ss.getSlides().get(0).getTextParagraphs().get(0);
// Check the text lengths are still right
assertEquals(30, HSLFTextParagraph.getRawText(tr1).length());
assertEquals(179, HSLFTextParagraph.getRawText(tr2).length());
assertEquals(1, tr1.size());
assertEquals(30, HSLFTextParagraph.getText(tr1).length());
assertEquals(30, HSLFTextParagraph.getRawText(tr1).length());
assertEquals(31, tr1.get(0).getTextRuns().get(0).getCharacterStyle().getCharactersCovered());
assertEquals(31, tr1.get(0).getParagraphStyle().getCharactersCovered());
// Write the slideshow out to a byte array
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ss.write(baos);
// Build an input stream of it
ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
// Use POIFS to query that lot
POIFSFileSystem npfs = new POIFSFileSystem(bais);
// Check that the "PowerPoint Document" sections have the same size
DocumentEntry oProps = (DocumentEntry)pfs.getRoot().getEntry("PowerPoint Document");
DocumentEntry nProps = (DocumentEntry)npfs.getRoot().getEntry("PowerPoint Document");
assertEquals(oProps.getSize(),nProps.getSize());
// Check that they contain the same data
byte[] _oData = new byte[oProps.getSize()];
byte[] _nData = new byte[nProps.getSize()];
pfs.createDocumentInputStream("PowerPoint Document").read(_oData);
npfs.createDocumentInputStream("PowerPoint Document").read(_nData);
for(int i=0; i<_oData.length; i++) {
// System.out.println(i + "\t" + Integer.toHexString(i));
assertEquals(_oData[i], _nData[i]);
}
}
@Test
public void testWritesOutTheSameRich() throws Exception {
// Grab the first text run on the first sheet
List<HSLFTextParagraph> tr1 = ss.getSlides().get(0).getTextParagraphs().get(0);
// Get the first rich text run
HSLFTextRun rtr1 = tr1.get(0).getTextRuns().get(0);
// Check that the text sizes are as expected
assertEquals(1, tr1.get(0).getTextRuns().size());
assertEquals(30, HSLFTextParagraph.getRawText(tr1).length());
assertEquals(30, rtr1.getLength());
assertEquals(30, rtr1.getRawText().length());
assertEquals(31, rtr1.getCharacterStyle().getCharactersCovered());
assertEquals(31, tr1.get(0).getParagraphStyle().getCharactersCovered());
// Set the text to be as it is now
rtr1.setText( rtr1.getRawText() );
rtr1 = tr1.get(0).getTextRuns().get(0);
// Check that the text sizes are still as expected
assertEquals(1, tr1.get(0).getTextRuns().size());
assertEquals(30, HSLFTextParagraph.getRawText(tr1).length());
assertEquals(30, tr1.get(0).getTextRuns().get(0).getRawText().length());
assertEquals(30, rtr1.getLength());
assertEquals(30, rtr1.getRawText().length());
assertEquals(31, rtr1.getCharacterStyle().getCharactersCovered());
assertEquals(31, tr1.get(0).getParagraphStyle().getCharactersCovered());
// Write the slideshow out to a byte array
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ss.write(baos);
// Build an input stream of it
ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
// Use POIFS to query that lot
POIFSFileSystem npfs = new POIFSFileSystem(bais);
// Check that the "PowerPoint Document" sections have the same size
DocumentEntry oProps = (DocumentEntry)pfs.getRoot().getEntry("PowerPoint Document");
DocumentEntry nProps = (DocumentEntry)npfs.getRoot().getEntry("PowerPoint Document");
assertEquals(oProps.getSize(),nProps.getSize());
// Check that they contain the same data
byte[] _oData = new byte[oProps.getSize()];
byte[] _nData = new byte[nProps.getSize()];
pfs.createDocumentInputStream("PowerPoint Document").read(_oData);
npfs.createDocumentInputStream("PowerPoint Document").read(_nData);
for(int i=0; i<_oData.length; i++) {
// System.out.println(i + "\t" + Integer.toHexString(i) + "\t" + _oData[i]);
assertEquals(_oData[i], _nData[i]);
}
}
}