src/ooxml/testcases/org/apache/poi/xwpf/usermodel/TestXWPFPictureData.java

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package org.apache.poi.xwpf.usermodel;

import static org.junit.Assert.assertArrayEquals;

import java.io.IOException;
import java.util.List;

import junit.framework.TestCase;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.openxml4j.opc.PackageRelationship;
import org.apache.poi.xssf.usermodel.XSSFRelation;
import org.apache.poi.xwpf.XWPFTestDataSamples;
import org.apache.poi.xwpf.model.XWPFHeaderFooterPolicy;

public class TestXWPFPictureData extends TestCase {

    public void testRead() throws InvalidFormatException, IOException {
        XWPFDocument sampleDoc = XWPFTestDataSamples.openSampleDocument("VariousPictures.docx");
        List<XWPFPictureData> pictures = sampleDoc.getAllPictures();

        assertEquals(5, pictures.size());
        String[] ext = {"wmf", "png", "emf", "emf", "jpeg"};
        for (int i = 0; i < pictures.size(); i++) {
            assertEquals(ext[i], pictures.get(i).suggestFileExtension());
        }

        int num = pictures.size();

        byte[] pictureData = XWPFTestDataSamples.getImage("nature1.jpg");

        String relationId = sampleDoc.addPictureData(pictureData, XWPFDocument.PICTURE_TYPE_JPEG);
        // picture list was updated
        assertEquals(num + 1, pictures.size());
        XWPFPictureData pict = (XWPFPictureData) sampleDoc.getRelationById(relationId);
        assertEquals("jpeg", pict.suggestFileExtension());
        assertArrayEquals(pictureData, pict.getData());
    }

    public void testPictureInHeader() throws IOException {
        XWPFDocument sampleDoc = XWPFTestDataSamples.openSampleDocument("headerPic.docx");
        verifyOneHeaderPicture(sampleDoc);

        XWPFDocument readBack = XWPFTestDataSamples.writeOutAndReadBack(sampleDoc);
        verifyOneHeaderPicture(readBack);
    }

    private void verifyOneHeaderPicture(XWPFDocument sampleDoc) {
        XWPFHeaderFooterPolicy policy = sampleDoc.getHeaderFooterPolicy();

        XWPFHeader header = policy.getDefaultHeader();

        List<XWPFPictureData> pictures = header.getAllPictures();
        assertEquals(1, pictures.size());
    }

    public void testNew() throws InvalidFormatException, IOException {
        XWPFDocument doc = XWPFTestDataSamples.openSampleDocument("EmptyDocumentWithHeaderFooter.docx");
        byte[] jpegData = XWPFTestDataSamples.getImage("nature1.jpg");
        assertNotNull(jpegData);
        byte[] gifData = XWPFTestDataSamples.getImage("nature1.gif");
        assertNotNull(gifData);
        byte[] pngData = XWPFTestDataSamples.getImage("nature1.png");
        assertNotNull(pngData);

        List<XWPFPictureData> pictures = doc.getAllPictures();
        assertEquals(0, pictures.size());

        // Document shouldn't have any image relationships
        assertEquals(13, doc.getPackagePart().getRelationships().size());
        for (PackageRelationship rel : doc.getPackagePart().getRelationships()) {
            if (rel.getRelationshipType().equals(XSSFRelation.IMAGE_JPEG.getRelation())) {
                fail("Shouldn't have JPEG yet");
            }
        }

        // Add the image
        String relationId = doc.addPictureData(jpegData, XWPFDocument.PICTURE_TYPE_JPEG);
        assertEquals(1, pictures.size());
        XWPFPictureData jpgPicData = (XWPFPictureData) doc.getRelationById(relationId);
        assertEquals("jpeg", jpgPicData.suggestFileExtension());
        assertArrayEquals(jpegData, jpgPicData.getData());

        // Ensure it now has one
        assertEquals(14, doc.getPackagePart().getRelationships().size());
        PackageRelationship jpegRel = null;
        for (PackageRelationship rel : doc.getPackagePart().getRelationships()) {
            if (rel.getRelationshipType().equals(XWPFRelation.IMAGE_JPEG.getRelation())) {
                if (jpegRel != null)
                    fail("Found 2 jpegs!");
                jpegRel = rel;
            }
        }
        assertNotNull("JPEG Relationship not found", jpegRel);

        // Check the details
        assertNotNull(jpegRel);
        assertEquals(XWPFRelation.IMAGE_JPEG.getRelation(), jpegRel.getRelationshipType());
        assertEquals("/word/document.xml", jpegRel.getSource().getPartName().toString());
        assertEquals("/word/media/image1.jpeg", jpegRel.getTargetURI().getPath());

        XWPFPictureData pictureDataByID = doc.getPictureDataByID(jpegRel.getId());
        assertArrayEquals(jpegData, pictureDataByID.getData());

        // Save an re-load, check it appears
        doc = XWPFTestDataSamples.writeOutAndReadBack(doc);
        assertEquals(1, doc.getAllPictures().size());
        assertEquals(1, doc.getAllPackagePictures().size());

        // verify the picture that we read back in
        pictureDataByID = doc.getPictureDataByID(jpegRel.getId());
        assertArrayEquals(jpegData, pictureDataByID.getData());

    }

    public void testBug51770() throws InvalidFormatException, IOException {
        XWPFDocument doc = XWPFTestDataSamples.openSampleDocument("Bug51170.docx");
        XWPFHeaderFooterPolicy policy = doc.getHeaderFooterPolicy();
        XWPFHeader header = policy.getDefaultHeader();
        for (XWPFParagraph paragraph : header.getParagraphs()) {
            for (XWPFRun run : paragraph.getRuns()) {
                for (XWPFPicture picture : run.getEmbeddedPictures()) {
                    if (paragraph.getDocument() != null) {
                        //System.out.println(picture.getCTPicture());
                        XWPFPictureData data = picture.getPictureData();
                        if (data != null) System.out.println(data.getFileName());
                    }
                }
            }
        }

    }
}