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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.png;
19  
20  import static org.junit.jupiter.api.Assertions.assertThrows;
21  
22  import java.io.File;
23  
24  import org.apache.commons.imaging.ImagingException;
25  import org.apache.commons.imaging.examples.ImageReadExample.ManagedImageBufferedImageFactory;
26  import org.apache.commons.imaging.test.TestResources;
27  import org.junit.jupiter.api.Test;
28  
29  /**
30   * Tests for PNG files with invalid chunk sizes.
31   */
32  public class PngWithInvalidPngChunkSizeTest {
33  
34      /**
35       * Test that an image with an invalid negative PNG chunk size causes an ImageReadException instead of other exception types.
36       */
37      @Test
38      public void testPngWithInvalidNegativePngChunkSize() {
39          final File imageFile = TestResources.resourceToFile("/IMAGING-210/testfile.png");
40          final PngImagingParameters params = new PngImagingParameters();
41          params.setBufferedImageFactory(new ManagedImageBufferedImageFactory());
42          final PngImageParser jpegImageParser = new PngImageParser();
43          assertThrows(ImagingException.class, () -> jpegImageParser.getBufferedImage(imageFile, params));
44      }
45  
46      /**
47       * Test that an image with an invalid PNG chunk size causes an ImageReadException instead of other exception types.
48       */
49      @Test
50      public void testPngWithInvalidPngChunkSize() {
51          final File imageFile = TestResources.resourceToFile("/IMAGING-211/testfile_2.png");
52          final PngImagingParameters params = new PngImagingParameters();
53          params.setBufferedImageFactory(new ManagedImageBufferedImageFactory());
54          final PngImageParser jpegImageParser = new PngImageParser();
55          assertThrows(ImagingException.class, () -> jpegImageParser.getBufferedImage(imageFile, params));
56      }
57  }