1/*
2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 * @test
26 * @bug     8167281
27 * @summary Test verifies that Element.getElementsByTagName("*") is not empty
28 *          for valid image.
29 * @run     main GetElementsByTagNameTest
30 */
31
32import java.awt.image.BufferedImage;
33import java.io.ByteArrayInputStream;
34import java.io.ByteArrayOutputStream;
35import java.io.IOException;
36import javax.imageio.ImageIO;
37import javax.imageio.ImageReader;
38import javax.imageio.metadata.IIOMetadata;
39import javax.imageio.metadata.IIOMetadataFormatImpl;
40import javax.imageio.stream.ImageInputStream;
41import javax.imageio.stream.MemoryCacheImageInputStream;
42import org.w3c.dom.Element;
43
44public class GetElementsByTagNameTest {
45
46    public static void main(String[] args) throws IOException {
47        // Generate some trivial image and save it to a temporary array
48        ByteArrayOutputStream tmp = new ByteArrayOutputStream();
49        ImageIO.write(new BufferedImage(1, 1, BufferedImage.TYPE_INT_RGB),
50                "gif", tmp);
51
52        // Read the stream
53        ImageInputStream in = new MemoryCacheImageInputStream(
54                new ByteArrayInputStream(tmp.toByteArray()));
55        ImageReader reader = ImageIO.getImageReaders(in).next();
56        reader.setInput(in);
57
58        // Retrieve standard image metadata tree
59        IIOMetadata meta = reader.getImageMetadata(0);
60        if (meta == null || !meta.isStandardMetadataFormatSupported()) {
61            throw new Error("Test failure: Missing metadata");
62        }
63        Element root = (Element) meta.
64                getAsTree(IIOMetadataFormatImpl.standardMetadataFormatName);
65
66        // Test getElementsByTagName("*")
67        if (root.getElementsByTagName("*").getLength() == 0) {
68            throw new RuntimeException("getElementsByTagName(\"*\") returns"
69                    + " nothing");
70        }
71    }
72}
73
74