src/scratchpad/testcases/org/apache/poi/hemf/usermodel/HemfPictureTest.java - poi - Git at Google

 /* ====================================================================
    Licensed to the Apache Software Foundation (ASF) under one or more
    contributor license agreements.  See the NOTICE file distributed with
    this work for additional information regarding copyright ownership.
    The ASF licenses this file to You under the Apache License, Version 2.0
    (the "License"); you may not use this file except in compliance with
    the License.  You may obtain a copy of the License at

        http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
 ==================================================================== */


 package org.apache.poi.hemf.usermodel;

 import static org.apache.poi.POITestCase.assertContains;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;

 import java.awt.geom.Point2D;
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;

 import org.apache.poi.POIDataSamples;
 import org.apache.poi.hemf.record.emf.HemfComment;
 import org.apache.poi.hemf.record.emf.HemfComment.EmfComment;
 import org.apache.poi.hemf.record.emf.HemfComment.EmfCommentDataFormat;
 import org.apache.poi.hemf.record.emf.HemfComment.EmfCommentDataMultiformats;
 import org.apache.poi.hemf.record.emf.HemfHeader;
 import org.apache.poi.hemf.record.emf.HemfRecord;
 import org.apache.poi.hemf.record.emf.HemfRecordType;
 import org.apache.poi.hemf.record.emf.HemfText;
 import org.apache.poi.hwmf.record.HwmfRecord;
 import org.apache.poi.hwmf.record.HwmfText;
 import org.apache.poi.hwmf.usermodel.HwmfEmbedded;
 import org.apache.poi.hwmf.usermodel.HwmfEmbeddedType;
 import org.apache.poi.hwmf.usermodel.HwmfPicture;
 import org.apache.poi.util.IOUtils;
 import org.apache.poi.util.RecordFormatException;
 import org.junit.Test;

 public class HemfPictureTest {

     private static final POIDataSamples ss_samples = POIDataSamples.getSpreadSheetInstance();
     private static final POIDataSamples sl_samples = POIDataSamples.getSlideShowInstance();

 /*    @Test
     @Ignore("Only for manual tests - need to add org.tukaani:xz:1.8 for this to work")
     public void paint() throws IOException {
         final byte buf[] = new byte[50_000_000];

         // good test samples to validate rendering:
         // emfs/commoncrawl2/NB/NBWN2YH5VFCLZRFDQU7PB7IDD4UKY7DN_2.emf
         // emfs/govdocs1/777/777525.ppt_0.emf
         // emfs/govdocs1/844/844795.ppt_2.emf
         // emfs/commoncrawl2/TO/TOYZSTNUSW5OFCFUQ6T5FBLIDLCRF3NH_0.emf

         final boolean writeLog = false;
         final boolean dumpRecords = false;
         final boolean savePng = true;
         final boolean dumpEmbedded = false;

         Set<String> passed = new HashSet<>();

         try (BufferedWriter sucWrite = parseEmfLog(passed, "emf-success.txt")
             ;BufferedWriter parseError = parseEmfLog(passed, "emf-parse.txt")
             ;BufferedWriter renderError = parseEmfLog(passed, "emf-render.txt")
             ;SevenZFile sevenZFile = new SevenZFile(new File("tmp/plus_emf.7z"))
             ) {
             for (int idx=0;;idx++) {
                 SevenZArchiveEntry entry = sevenZFile.getNextEntry();
                 if (entry == null) break;
                 final String etName = entry.getName();

                 if (entry.isDirectory() || !etName.endsWith(".emf") || passed.contains(etName)) continue;


                 // KEEDHN6XES4EKK52E3AJHKCARNTQF7PO_0.emf takes ages, time is spent while drawing paths
 //                if (!etName.contains("KEEDHN6XES4EKK52E3AJHKCARNTQF7PO_0.emf")) continue;

                 // F7GK5XOLERFURVTQALOCX3GJ6FH45LNQ strange colors
                 // ISS3ANIX2PL4PXR7SZSJSPBZI7YQQE3U stroke wrong
 //                if (!etName.contains("ISS3ANIX2PL4PXR7SZSJSPBZI7YQQE3U")) continue;


                 System.out.println(etName);

                 int size = sevenZFile.read(buf);

                 HemfPicture emf = null;
                 try {
                     emf = new HemfPicture(new ByteArrayInputStream(buf, 0, size));

                     // initialize parsing
                     emf.getRecords();
                 } catch (Exception|AssertionError e) {
                     if (writeLog) {
                         parseError.write(etName+" "+hashException(e)+"\n");
                         parseError.flush();
                     }
                     System.out.println("parse error");
                     // continue with the read records up to the error anyway
                     if (emf.getRecords().isEmpty()) {
                         continue;
                     }
                 }

                 if (dumpRecords) {
                     dumpRecords(emf);
                 }

                 if (dumpEmbedded) {
                     int embIdx = 0;
                     for (HwmfEmbedded emb : emf.getEmbeddings()) {
                         final File embName = new File("build/tmp", "emb_"+etName.replaceFirst(".+/", "").replace(".emf", "_"+embIdx + emb.getEmbeddedType().extension) );
                         try (FileOutputStream fos = new FileOutputStream(embName)) {
                             fos.write(emb.getRawData());
                         }
                         embIdx++;
                     }
                 }


                 Graphics2D g = null;
                 try {
                     Dimension2D dim = emf.getSize();
                     double width = Units.pointsToPixel(dim.getWidth());
                     // keep aspect ratio for height
                     double height = Units.pointsToPixel(dim.getHeight());
                     double max = Math.max(width, height);
                     if (max > 1500.) {
                         width *= 1500. / max;
                         height *= 1500. / max;
                     }
                     width = Math.ceil(width);
                     height = Math.ceil(height);

                     BufferedImage bufImg = new BufferedImage((int)width, (int)height, BufferedImage.TYPE_INT_ARGB);
                     g = bufImg.createGraphics();
                     g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
                     g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
                     g.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_SPEED);
                     g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
                     g.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);

                     g.setComposite(AlphaComposite.Clear);
                     g.fillRect(0, 0, (int)width, (int)height);
                     g.setComposite(AlphaComposite.Src);

                     final File pngName = new File("build/tmp", etName.replaceFirst(".+/", "").replace(".emf", ".png"));

                     emf.draw(g, new Rectangle2D.Double(0, 0, width, height));

                     if (savePng) {
                         ImageIO.write(bufImg, "PNG", pngName);
                     }
                 } catch (Exception|AssertionError e) {
                     System.out.println("render error");
                     if (writeLog) {
                         // dumpRecords(emf.getRecords());
                         renderError.write(etName+" "+hashException(e)+"\n");
                         renderError.flush();
                     }
                     continue;
                 } finally {
                     if (g != null) g.dispose();
                 }

                 if (writeLog) {
                     sucWrite.write(etName + "\n");
                     sucWrite.flush();
                 }
             }
         }
     }

     private static int hashException(Throwable e) {
         StringBuilder sb = new StringBuilder();
         for (StackTraceElement se : e.getStackTrace()) {
             sb.append(se.getClassName()+":"+se.getLineNumber());
         }
         return sb.toString().hashCode();
     }

     private static void dumpRecords(HemfPicture emf) throws IOException {
         FileWriter fw = new FileWriter("record-list.txt");
         int i = 0;
         for (HemfRecord r : emf.getRecords()) {
             if (r.getEmfRecordType() != HemfRecordType.comment) {
                 fw.write(i + " " + r.getEmfRecordType() + " " + r.toString() + "\n");
             }
             i++;
         }
         fw.close();
     }

     private static BufferedWriter parseEmfLog(Set<String> passed, String logFile) throws IOException {
         Path log = Paths.get(logFile);

         StandardOpenOption soo;
         if (Files.exists(log)) {
             soo = StandardOpenOption.APPEND;
             try (Stream<String> stream = Files.lines(log)) {
                 stream.filter(s -> !s.startsWith("#")).forEach((s) -> passed.add(s.split("\\s")[0]));
             }
         } else {
             soo = StandardOpenOption.CREATE;
         }

         return Files.newBufferedWriter(log, StandardCharsets.UTF_8, soo);
     }*/

     @Test
     public void testBasicWindows() throws Exception {
         try (InputStream is = ss_samples.openResourceAsStream("SimpleEMF_windows.emf")) {
             HemfPicture pic = new HemfPicture(is);
             HemfHeader header = pic.getHeader();
             assertEquals(27864, header.getBytes());
             assertEquals(31, header.getRecords());
             assertEquals(3, header.getHandles());
             assertEquals(346000, header.getMicroDimension().getWidth(), 0);
             assertEquals(194000, header.getMicroDimension().getHeight(), 0);

             List<HemfRecord> records = pic.getRecords();

             assertEquals(31, records.size());
         }
     }

     @Test
     public void testBasicMac() throws Exception {
         try (InputStream is = ss_samples.openResourceAsStream("SimpleEMF_mac.emf")) {
             HemfPicture pic = new HemfPicture(is);
             HemfHeader header = pic.getHeader();

             int records = 0;
             boolean extractedData = false;
             for (HemfRecord record : pic) {
                 if (record.getEmfRecordType() == HemfRecordType.comment) {
                     HemfComment.EmfCommentData comment = ((EmfComment) record).getCommentData();
                     if (comment instanceof EmfCommentDataMultiformats) {
                         for (EmfCommentDataFormat d : ((EmfCommentDataMultiformats) comment).getFormats()) {
                             byte[] data = d.getRawData();
                             //make sure header starts at 0
                             assertEquals('%', data[0]);
                             assertEquals('P', data[1]);
                             assertEquals('D', data[2]);
                             assertEquals('F', data[3]);

                             //make sure byte array ends at EOF\n
                             assertEquals('E', data[data.length - 4]);
                             assertEquals('O', data[data.length - 3]);
                             assertEquals('F', data[data.length - 2]);
                             assertEquals('\n', data[data.length - 1]);
                             extractedData = true;
                         }
                     }
                 }
                 records++;
             }
             assertTrue(extractedData);
             assertEquals(header.getRecords(), records);
         }
     }

     @Test
     public void testMacText() throws Exception {
         try (InputStream is = ss_samples.openResourceAsStream("SimpleEMF_mac.emf")) {
             HemfPicture pic = new HemfPicture(is);

             double lastY = -1;
             double lastX = -1;
             //derive this from the font information!
             long fudgeFactorX = 1000;
             StringBuilder sb = new StringBuilder();
             for (HemfRecord record : pic) {
                 if (record.getEmfRecordType().equals(HemfRecordType.extTextOutW)) {
                     HemfText.EmfExtTextOutW extTextOutW = (HemfText.EmfExtTextOutW) record;
                     Point2D reference = extTextOutW.getReference();
                     if (lastY > -1 && lastY != reference.getY()) {
                         sb.append("\n");
                         lastX = -1;
                     }
                     if (lastX > -1 && reference.getX() - lastX > fudgeFactorX) {
                         sb.append(" ");
                     }
                     sb.append(extTextOutW.getText());
                     lastY = reference.getY();
                     lastX = reference.getX();
                 }
             }
             String txt = sb.toString();
             assertContains(txt, "Tika http://incubator.apache.org");
             assertContains(txt, "Latest News\n");
         }
     }

     @Test
     public void testWMFInsideEMF() throws Exception {

         byte[] wmfData = null;
         try (InputStream is = ss_samples.openResourceAsStream("63327.emf")) {
             HemfPicture pic = new HemfPicture(is);
             for (HemfRecord record : pic) {
                 if (record.getEmfRecordType() == HemfRecordType.comment) {
                     HemfComment.EmfComment commentRecord = (HemfComment.EmfComment) record;
                     HemfComment.EmfCommentData emfCommentData = commentRecord.getCommentData();
                     if (emfCommentData instanceof HemfComment.EmfCommentDataWMF) {
                         wmfData = ((HemfComment.EmfCommentDataWMF) emfCommentData).getWMFData();
                     }
                 }
             }
         }
         assertNotNull(wmfData);
         assertEquals(230, wmfData.length);
         HwmfPicture pict = new HwmfPicture(new ByteArrayInputStream(wmfData));
         String embedded = null;
         for (HwmfRecord r : pict.getRecords()) {
             if (r instanceof HwmfText.WmfTextOut) {
                 embedded = ((HwmfText.WmfTextOut) r).getText(StandardCharsets.US_ASCII);
             }
         }
         assertNotNull(embedded);
         assertEquals("Hw.txt", embedded);
     }

     @Test
     public void testWindowsText() throws Exception {
         try (InputStream is = ss_samples.openResourceAsStream("SimpleEMF_windows.emf")) {
             HemfPicture pic = new HemfPicture(is);
             double lastY = -1;
             double lastX = -1;
             long fudgeFactorX = 1000;//derive this from the font or frame/bounds information
             StringBuilder sb = new StringBuilder();
             Set<String> expectedParts = new HashSet<>();
             expectedParts.add("C:\\Users\\tallison\\");
             expectedParts.add("testPDF.pdf");
             int foundExpected = 0;
             for (HemfRecord record : pic) {
                 if (record.getEmfRecordType().equals(HemfRecordType.extTextOutW)) {
                     HemfText.EmfExtTextOutW extTextOutW = (HemfText.EmfExtTextOutW) record;
                     Point2D reference = extTextOutW.getReference();
                     if (lastY > -1 && lastY != reference.getY()) {
                         sb.append("\n");
                         lastX = -1;
                     }
                     if (lastX > -1 && reference.getX() - lastX > fudgeFactorX) {
                         sb.append(" ");
                     }
                     String txt = extTextOutW.getText();
                     if (expectedParts.contains(txt)) {
                         foundExpected++;
                     }
                     sb.append(txt);
                     lastY = reference.getY();
                     lastX = reference.getX();
                 }
             }
             String txt = sb.toString();
             assertContains(txt, "C:\\Users\\tallison\\\n");
             assertContains(txt, "asf2-git-1.x\\tika-\n");
             assertEquals(expectedParts.size(), foundExpected);
         }
     }

     @Test(expected = RecordFormatException.class)
     public void testInfiniteLoopOnFile() throws Exception {
         try (InputStream is = ss_samples.openResourceAsStream("61294.emf")) {
             HemfPicture pic = new HemfPicture(is);
             for (HemfRecord record : pic) {

             }
         }
     }

     @Test(expected = RecordFormatException.class)
     public void testInfiniteLoopOnByteArray() throws Exception {
         try (InputStream is = ss_samples.openResourceAsStream("61294.emf")) {
             ByteArrayOutputStream bos = new ByteArrayOutputStream();
             IOUtils.copy(is, bos);
             is.close();

             HemfPicture pic = new HemfPicture(new ByteArrayInputStream(bos.toByteArray()));
             for (HemfRecord record : pic) {

             }
         }
     }

     @Test
     public void nestedWmfEmf() throws Exception {
         try (InputStream is = sl_samples.openResourceAsStream("nested_wmf.emf")) {
             HemfPicture emf1 = new HemfPicture(is);
             List<HwmfEmbedded> embeds = new ArrayList<>();
             emf1.getEmbeddings().forEach(embeds::add);
             assertEquals(1, embeds.size());
             assertEquals(HwmfEmbeddedType.WMF, embeds.get(0).getEmbeddedType());

             HwmfPicture wmf = new HwmfPicture(new ByteArrayInputStream(embeds.get(0).getRawData()));
             embeds.clear();
             wmf.getEmbeddings().forEach(embeds::add);
             assertEquals(3, embeds.size());
             assertEquals(HwmfEmbeddedType.EMF, embeds.get(0).getEmbeddedType());

             HemfPicture emf2 = new HemfPicture(new ByteArrayInputStream(embeds.get(0).getRawData()));
             embeds.clear();
             emf2.getEmbeddings().forEach(embeds::add);
             assertTrue(embeds.isEmpty());
         }
     }


     /* govdocs1 064213.doc-0.emf contains an example of extextouta */
 }
	/* ====================================================================
	Licensed to the Apache Software Foundation (ASF) under one or more
	contributor license agreements. See the NOTICE file distributed with
	this work for additional information regarding copyright ownership.
	The ASF licenses this file to You under the Apache License, Version 2.0
	(the "License"); you may not use this file except in compliance with
	the License. You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software
	distributed under the License is distributed on an "AS IS" BASIS,
	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	See the License for the specific language governing permissions and
	limitations under the License.
	==================================================================== */


	package org.apache.poi.hemf.usermodel;

	import static org.apache.poi.POITestCase.assertContains;
	import static org.junit.Assert.assertEquals;
	import static org.junit.Assert.assertNotNull;
	import static org.junit.Assert.assertTrue;

	import java.awt.geom.Point2D;
	import java.io.ByteArrayInputStream;
	import java.io.ByteArrayOutputStream;
	import java.io.InputStream;
	import java.nio.charset.StandardCharsets;
	import java.util.ArrayList;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Set;

	import org.apache.poi.POIDataSamples;
	import org.apache.poi.hemf.record.emf.HemfComment;
	import org.apache.poi.hemf.record.emf.HemfComment.EmfComment;
	import org.apache.poi.hemf.record.emf.HemfComment.EmfCommentDataFormat;
	import org.apache.poi.hemf.record.emf.HemfComment.EmfCommentDataMultiformats;
	import org.apache.poi.hemf.record.emf.HemfHeader;
	import org.apache.poi.hemf.record.emf.HemfRecord;
	import org.apache.poi.hemf.record.emf.HemfRecordType;
	import org.apache.poi.hemf.record.emf.HemfText;
	import org.apache.poi.hwmf.record.HwmfRecord;
	import org.apache.poi.hwmf.record.HwmfText;
	import org.apache.poi.hwmf.usermodel.HwmfEmbedded;
	import org.apache.poi.hwmf.usermodel.HwmfEmbeddedType;
	import org.apache.poi.hwmf.usermodel.HwmfPicture;
	import org.apache.poi.util.IOUtils;
	import org.apache.poi.util.RecordFormatException;
	import org.junit.Test;

	public class HemfPictureTest {

	private static final POIDataSamples ss_samples = POIDataSamples.getSpreadSheetInstance();
	private static final POIDataSamples sl_samples = POIDataSamples.getSlideShowInstance();

	/* @Test
	@Ignore("Only for manual tests - need to add org.tukaani:xz:1.8 for this to work")
	public void paint() throws IOException {
	final byte buf[] = new byte[50_000_000];

	// good test samples to validate rendering:
	// emfs/commoncrawl2/NB/NBWN2YH5VFCLZRFDQU7PB7IDD4UKY7DN_2.emf
	// emfs/govdocs1/777/777525.ppt_0.emf
	// emfs/govdocs1/844/844795.ppt_2.emf
	// emfs/commoncrawl2/TO/TOYZSTNUSW5OFCFUQ6T5FBLIDLCRF3NH_0.emf

	final boolean writeLog = false;
	final boolean dumpRecords = false;
	final boolean savePng = true;
	final boolean dumpEmbedded = false;

	Set<String> passed = new HashSet<>();

	try (BufferedWriter sucWrite = parseEmfLog(passed, "emf-success.txt")
	;BufferedWriter parseError = parseEmfLog(passed, "emf-parse.txt")
	;BufferedWriter renderError = parseEmfLog(passed, "emf-render.txt")
	;SevenZFile sevenZFile = new SevenZFile(new File("tmp/plus_emf.7z"))
	) {
	for (int idx=0;;idx++) {
	SevenZArchiveEntry entry = sevenZFile.getNextEntry();
	if (entry == null) break;
	final String etName = entry.getName();

	if (entry.isDirectory() \|\| !etName.endsWith(".emf") \|\| passed.contains(etName)) continue;


	// KEEDHN6XES4EKK52E3AJHKCARNTQF7PO_0.emf takes ages, time is spent while drawing paths
	// if (!etName.contains("KEEDHN6XES4EKK52E3AJHKCARNTQF7PO_0.emf")) continue;

	// F7GK5XOLERFURVTQALOCX3GJ6FH45LNQ strange colors
	// ISS3ANIX2PL4PXR7SZSJSPBZI7YQQE3U stroke wrong
	// if (!etName.contains("ISS3ANIX2PL4PXR7SZSJSPBZI7YQQE3U")) continue;


	System.out.println(etName);

	int size = sevenZFile.read(buf);

	HemfPicture emf = null;
	try {
	emf = new HemfPicture(new ByteArrayInputStream(buf, 0, size));

	// initialize parsing
	emf.getRecords();
	} catch (Exception\|AssertionError e) {
	if (writeLog) {
	parseError.write(etName+" "+hashException(e)+"\n");
	parseError.flush();
	}
	System.out.println("parse error");
	// continue with the read records up to the error anyway
	if (emf.getRecords().isEmpty()) {
	continue;
	}
	}

	if (dumpRecords) {
	dumpRecords(emf);
	}

	if (dumpEmbedded) {
	int embIdx = 0;
	for (HwmfEmbedded emb : emf.getEmbeddings()) {
	final File embName = new File("build/tmp", "emb_"+etName.replaceFirst(".+/", "").replace(".emf", "_"+embIdx + emb.getEmbeddedType().extension) );
	try (FileOutputStream fos = new FileOutputStream(embName)) {
	fos.write(emb.getRawData());
	}
	embIdx++;
	}
	}


	Graphics2D g = null;
	try {
	Dimension2D dim = emf.getSize();
	double width = Units.pointsToPixel(dim.getWidth());
	// keep aspect ratio for height
	double height = Units.pointsToPixel(dim.getHeight());
	double max = Math.max(width, height);
	if (max > 1500.) {
	width *= 1500. / max;
	height *= 1500. / max;
	}
	width = Math.ceil(width);
	height = Math.ceil(height);

	BufferedImage bufImg = new BufferedImage((int)width, (int)height, BufferedImage.TYPE_INT_ARGB);
	g = bufImg.createGraphics();
	g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
	g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_SPEED);
	g.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_SPEED);
	g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
	g.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);

	g.setComposite(AlphaComposite.Clear);
	g.fillRect(0, 0, (int)width, (int)height);
	g.setComposite(AlphaComposite.Src);

	final File pngName = new File("build/tmp", etName.replaceFirst(".+/", "").replace(".emf", ".png"));

	emf.draw(g, new Rectangle2D.Double(0, 0, width, height));

	if (savePng) {
	ImageIO.write(bufImg, "PNG", pngName);
	}
	} catch (Exception\|AssertionError e) {
	System.out.println("render error");
	if (writeLog) {
	// dumpRecords(emf.getRecords());
	renderError.write(etName+" "+hashException(e)+"\n");
	renderError.flush();
	}
	continue;
	} finally {
	if (g != null) g.dispose();
	}

	if (writeLog) {
	sucWrite.write(etName + "\n");
	sucWrite.flush();
	}
	}
	}
	}

	private static int hashException(Throwable e) {
	StringBuilder sb = new StringBuilder();
	for (StackTraceElement se : e.getStackTrace()) {
	sb.append(se.getClassName()+":"+se.getLineNumber());
	}
	return sb.toString().hashCode();
	}

	private static void dumpRecords(HemfPicture emf) throws IOException {
	FileWriter fw = new FileWriter("record-list.txt");
	int i = 0;
	for (HemfRecord r : emf.getRecords()) {
	if (r.getEmfRecordType() != HemfRecordType.comment) {
	fw.write(i + " " + r.getEmfRecordType() + " " + r.toString() + "\n");
	}
	i++;
	}
	fw.close();
	}

	private static BufferedWriter parseEmfLog(Set<String> passed, String logFile) throws IOException {
	Path log = Paths.get(logFile);

	StandardOpenOption soo;
	if (Files.exists(log)) {
	soo = StandardOpenOption.APPEND;
	try (Stream<String> stream = Files.lines(log)) {
	stream.filter(s -> !s.startsWith("#")).forEach((s) -> passed.add(s.split("\\s")[0]));
	}
	} else {
	soo = StandardOpenOption.CREATE;
	}

	return Files.newBufferedWriter(log, StandardCharsets.UTF_8, soo);
	}*/

	@Test
	public void testBasicWindows() throws Exception {
	try (InputStream is = ss_samples.openResourceAsStream("SimpleEMF_windows.emf")) {
	HemfPicture pic = new HemfPicture(is);
	HemfHeader header = pic.getHeader();
	assertEquals(27864, header.getBytes());
	assertEquals(31, header.getRecords());
	assertEquals(3, header.getHandles());
	assertEquals(346000, header.getMicroDimension().getWidth(), 0);
	assertEquals(194000, header.getMicroDimension().getHeight(), 0);

	List<HemfRecord> records = pic.getRecords();

	assertEquals(31, records.size());
	}
	}

	@Test
	public void testBasicMac() throws Exception {
	try (InputStream is = ss_samples.openResourceAsStream("SimpleEMF_mac.emf")) {
	HemfPicture pic = new HemfPicture(is);
	HemfHeader header = pic.getHeader();

	int records = 0;
	boolean extractedData = false;
	for (HemfRecord record : pic) {
	if (record.getEmfRecordType() == HemfRecordType.comment) {
	HemfComment.EmfCommentData comment = ((EmfComment) record).getCommentData();
	if (comment instanceof EmfCommentDataMultiformats) {
	for (EmfCommentDataFormat d : ((EmfCommentDataMultiformats) comment).getFormats()) {
	byte[] data = d.getRawData();
	//make sure header starts at 0
	assertEquals('%', data[0]);
	assertEquals('P', data[1]);
	assertEquals('D', data[2]);
	assertEquals('F', data[3]);

	//make sure byte array ends at EOF\n
	assertEquals('E', data[data.length - 4]);
	assertEquals('O', data[data.length - 3]);
	assertEquals('F', data[data.length - 2]);
	assertEquals('\n', data[data.length - 1]);
	extractedData = true;
	}
	}
	}
	records++;
	}
	assertTrue(extractedData);
	assertEquals(header.getRecords(), records);
	}
	}

	@Test
	public void testMacText() throws Exception {
	try (InputStream is = ss_samples.openResourceAsStream("SimpleEMF_mac.emf")) {
	HemfPicture pic = new HemfPicture(is);

	double lastY = -1;
	double lastX = -1;
	//derive this from the font information!
	long fudgeFactorX = 1000;
	StringBuilder sb = new StringBuilder();
	for (HemfRecord record : pic) {
	if (record.getEmfRecordType().equals(HemfRecordType.extTextOutW)) {
	HemfText.EmfExtTextOutW extTextOutW = (HemfText.EmfExtTextOutW) record;
	Point2D reference = extTextOutW.getReference();
	if (lastY > -1 && lastY != reference.getY()) {
	sb.append("\n");
	lastX = -1;
	}
	if (lastX > -1 && reference.getX() - lastX > fudgeFactorX) {
	sb.append(" ");
	}
	sb.append(extTextOutW.getText());
	lastY = reference.getY();
	lastX = reference.getX();
	}
	}
	String txt = sb.toString();
	assertContains(txt, "Tika http://incubator.apache.org");
	assertContains(txt, "Latest News\n");
	}
	}

	@Test
	public void testWMFInsideEMF() throws Exception {

	byte[] wmfData = null;
	try (InputStream is = ss_samples.openResourceAsStream("63327.emf")) {
	HemfPicture pic = new HemfPicture(is);
	for (HemfRecord record : pic) {
	if (record.getEmfRecordType() == HemfRecordType.comment) {
	HemfComment.EmfComment commentRecord = (HemfComment.EmfComment) record;
	HemfComment.EmfCommentData emfCommentData = commentRecord.getCommentData();
	if (emfCommentData instanceof HemfComment.EmfCommentDataWMF) {
	wmfData = ((HemfComment.EmfCommentDataWMF) emfCommentData).getWMFData();
	}
	}
	}
	}
	assertNotNull(wmfData);
	assertEquals(230, wmfData.length);
	HwmfPicture pict = new HwmfPicture(new ByteArrayInputStream(wmfData));
	String embedded = null;
	for (HwmfRecord r : pict.getRecords()) {
	if (r instanceof HwmfText.WmfTextOut) {
	embedded = ((HwmfText.WmfTextOut) r).getText(StandardCharsets.US_ASCII);
	}
	}
	assertNotNull(embedded);
	assertEquals("Hw.txt", embedded);
	}

	@Test
	public void testWindowsText() throws Exception {
	try (InputStream is = ss_samples.openResourceAsStream("SimpleEMF_windows.emf")) {
	HemfPicture pic = new HemfPicture(is);
	double lastY = -1;
	double lastX = -1;
	long fudgeFactorX = 1000;//derive this from the font or frame/bounds information
	StringBuilder sb = new StringBuilder();
	Set<String> expectedParts = new HashSet<>();
	expectedParts.add("C:\\Users\\tallison\\");
	expectedParts.add("testPDF.pdf");
	int foundExpected = 0;
	for (HemfRecord record : pic) {
	if (record.getEmfRecordType().equals(HemfRecordType.extTextOutW)) {
	HemfText.EmfExtTextOutW extTextOutW = (HemfText.EmfExtTextOutW) record;
	Point2D reference = extTextOutW.getReference();
	if (lastY > -1 && lastY != reference.getY()) {
	sb.append("\n");
	lastX = -1;
	}
	if (lastX > -1 && reference.getX() - lastX > fudgeFactorX) {
	sb.append(" ");
	}
	String txt = extTextOutW.getText();
	if (expectedParts.contains(txt)) {
	foundExpected++;
	}
	sb.append(txt);
	lastY = reference.getY();
	lastX = reference.getX();
	}
	}
	String txt = sb.toString();
	assertContains(txt, "C:\\Users\\tallison\\\n");
	assertContains(txt, "asf2-git-1.x\\tika-\n");
	assertEquals(expectedParts.size(), foundExpected);
	}
	}

	@Test(expected = RecordFormatException.class)
	public void testInfiniteLoopOnFile() throws Exception {
	try (InputStream is = ss_samples.openResourceAsStream("61294.emf")) {
	HemfPicture pic = new HemfPicture(is);
	for (HemfRecord record : pic) {

	}
	}
	}

	@Test(expected = RecordFormatException.class)
	public void testInfiniteLoopOnByteArray() throws Exception {
	try (InputStream is = ss_samples.openResourceAsStream("61294.emf")) {
	ByteArrayOutputStream bos = new ByteArrayOutputStream();
	IOUtils.copy(is, bos);
	is.close();

	HemfPicture pic = new HemfPicture(new ByteArrayInputStream(bos.toByteArray()));
	for (HemfRecord record : pic) {

	}
	}
	}

	@Test
	public void nestedWmfEmf() throws Exception {
	try (InputStream is = sl_samples.openResourceAsStream("nested_wmf.emf")) {
	HemfPicture emf1 = new HemfPicture(is);
	List<HwmfEmbedded> embeds = new ArrayList<>();
	emf1.getEmbeddings().forEach(embeds::add);
	assertEquals(1, embeds.size());
	assertEquals(HwmfEmbeddedType.WMF, embeds.get(0).getEmbeddedType());

	HwmfPicture wmf = new HwmfPicture(new ByteArrayInputStream(embeds.get(0).getRawData()));
	embeds.clear();
	wmf.getEmbeddings().forEach(embeds::add);
	assertEquals(3, embeds.size());
	assertEquals(HwmfEmbeddedType.EMF, embeds.get(0).getEmbeddedType());

	HemfPicture emf2 = new HemfPicture(new ByteArrayInputStream(embeds.get(0).getRawData()));
	embeds.clear();
	emf2.getEmbeddings().forEach(embeds::add);
	assertTrue(embeds.isEmpty());
	}
	}


	/* govdocs1 064213.doc-0.emf contains an example of extextouta */
	}