/** | |
* 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.pdfbox.jbig2; | |
import static org.apache.pdfbox.jbig2.JBIG2DocumentFacade.doc; | |
import java.io.InputStream; | |
import java.security.MessageDigest; | |
import java.security.NoSuchAlgorithmException; | |
import javax.imageio.ImageIO; | |
import javax.imageio.stream.ImageInputStream; | |
import org.junit.Assert; | |
import org.junit.Test; | |
/** | |
* Collection of tests for <a href="https://github.com/levigo/jbig2-imageio/issues">Github issues</a>. | |
*/ | |
public class GithubIssuesTest | |
{ | |
/** | |
* <a href="https://github.com/levigo/jbig2-imageio/issues/21">Github issue 21s</a> | |
*/ | |
@Test | |
public void issue21() throws Exception | |
{ | |
final byte[] md5Expected = new byte[] { 83, 74, -69, -60, -122, -99, 21, 126, -115, 13, 9, | |
107, -31, -109, 77, -119 }; | |
final InputStream imageStream = getClass() | |
.getResourceAsStream("/org/apache/pdfbox/jbig2/github/21.jb2"); | |
final InputStream globalsStream = getClass() | |
.getResourceAsStream("/org/apache/pdfbox/jbig2/github/21.glob"); | |
final ImageInputStream globalsIIS = ImageIO.createImageInputStream(globalsStream); | |
final ImageInputStream imageIIS = ImageIO.createImageInputStream(imageStream); | |
byte[] md5Actual = null; | |
try | |
{ | |
final JBIG2Document doc = doc(imageIIS, globalsIIS); | |
final JBIG2Page page = doc.getPage(1); | |
final Bitmap bitmap = page.getBitmap(); | |
md5Actual = md5(bitmap); | |
} | |
finally | |
{ | |
Assert.assertArrayEquals(md5Expected, md5Actual); | |
globalsIIS.close(); | |
globalsStream.close(); | |
imageIIS.close(); | |
imageStream.close(); | |
} | |
} | |
private static byte[] md5(Bitmap b) throws NoSuchAlgorithmException | |
{ | |
return MessageDigest.getInstance("MD5").digest(b.getByteArray()); | |
} | |
} |