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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.jpeg.exif;
19  
20  import static org.junit.jupiter.api.Assertions.assertTrue;
21  
22  import java.io.File;
23  import java.util.stream.Stream;
24  
25  import org.apache.commons.imaging.common.bytesource.ByteSourceFile;
26  import org.apache.commons.imaging.examples.WriteExifMetadataExample;
27  import org.apache.commons.imaging.formats.jpeg.JpegImageParser;
28  import org.apache.commons.imaging.formats.tiff.TiffField;
29  import org.apache.commons.imaging.formats.tiff.TiffImageMetadata;
30  import org.apache.commons.imaging.internal.Debug;
31  import org.junit.jupiter.params.ParameterizedTest;
32  import org.junit.jupiter.params.provider.MethodSource;
33  
34  public class WriteExifMetadataExampleTest extends ExifBaseTest {
35  
36      public static Stream<File> data() throws Exception {
37          return getJpegImages().stream();
38      }
39  
40      /**
41       * Test that there are no odd offsets in the generated TIFF images.
42       * @throws Exception if the test failed for a unexpected reason
43       */
44      @ParameterizedTest
45      @MethodSource("data")
46      public void testOddOffsets(final File imageFile) throws Exception {
47          Debug.debug("imageFile", imageFile.getAbsoluteFile());
48  
49          final File tempFile = File.createTempFile("test", ".jpg");
50          Debug.debug("tempFile", tempFile.getAbsoluteFile());
51  
52          try {
53              final boolean ignoreImageData = isPhilHarveyTestImage(imageFile);
54              if (ignoreImageData) {
55                  return;
56              }
57              new WriteExifMetadataExample().changeExifMetadata(imageFile, tempFile);
58              final JpegImageParser parser = new JpegImageParser();
59              final ByteSourceFile byteSource = new ByteSourceFile(tempFile);
60              final TiffImageMetadata tiff = parser.getExifMetadata(byteSource, null);
61              for (final TiffField tiffField : tiff.getAllFields()) {
62                  if (!tiffField.isLocalValue()) {
63                      final boolean isOdd = (tiffField.getOffset() & 1L) == 0;
64                      assertTrue(isOdd);
65                  }
66              }
67          } catch (final ExifRewriter.ExifOverflowException e) {
68              Debug.debug("Ignoring unavoidable ExifOverflowException: " + e.getMessage());
69              Debug.debug("Error image: " + imageFile.getAbsoluteFile());
70          }
71      }
72  
73  }