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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.commons.imaging.formats.tiff;
19  
20  import static org.junit.jupiter.api.Assertions.assertNotNull;
21  
22  import java.awt.image.BufferedImage;
23  import java.io.ByteArrayOutputStream;
24  import java.io.File;
25  import java.util.List;
26  
27  import org.apache.commons.imaging.ImageInfo;
28  import org.apache.commons.imaging.Imaging;
29  import org.apache.commons.imaging.common.ImageMetadata;
30  import org.apache.commons.imaging.formats.tiff.constants.TiffConstants;
31  import org.apache.commons.imaging.internal.Debug;
32  import org.junit.jupiter.api.Test;
33  
34  public class TiffRoundtripTest extends TiffBaseTest {
35  
36      @Test
37      public void test() throws Exception {
38          final List<File> images = getTiffImages();
39          for (final File imageFile : images) {
40  
41              Debug.debug("imageFile", imageFile);
42  
43              final ImageMetadata metadata = Imaging.getMetadata(imageFile);
44              assertNotNull(metadata);
45  
46              final ImageInfo imageInfo = Imaging.getImageInfo(imageFile);
47              assertNotNull(imageInfo);
48  
49              final BufferedImage image = Imaging.getBufferedImage(imageFile);
50              assertNotNull(image);
51  
52              final int[] compressions = { TiffConstants.TIFF_COMPRESSION_UNCOMPRESSED, TiffConstants.TIFF_COMPRESSION_LZW,
53                      TiffConstants.TIFF_COMPRESSION_PACKBITS, TiffConstants.TIFF_COMPRESSION_DEFLATE_ADOBE };
54              final TiffImageParser tiffImageParser = new TiffImageParser();
55              for (final int compression : compressions) {
56                  final byte[] tempFile;
57                  final TiffImagingParameters params = new TiffImagingParameters();
58                  params.setCompression(compression);
59                  try (ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
60                      tiffImageParser.writeImage(image, bos, params);
61                      tempFile = bos.toByteArray();
62                  }
63                  final BufferedImage image2 = Imaging.getBufferedImage(tempFile);
64                  assertNotNull(image2);
65              }
66          }
67      }
68  
69  }