1/*
2 * Copyright (c) 2001, 2017, 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 4403355
27 * @summary Checks that PNGImage{Reader,Writer}Spi.getStreamMetadataFormatNames
28 *          and getNativeStreamMetadataFormatName return null
29 * @modules java.desktop/com.sun.imageio.plugins.png
30 */
31
32import javax.imageio.spi.ImageReaderSpi;
33import javax.imageio.spi.ImageWriterSpi;
34
35import com.sun.imageio.plugins.png.PNGImageReaderSpi;
36import com.sun.imageio.plugins.png.PNGImageWriterSpi;
37
38public class PNGSpiStreamMetadata {
39
40    private static void fatal() {
41        throw new RuntimeException("Got a non-null stream metadata format!");
42    }
43
44    public static void main(String[] args) {
45        ImageReaderSpi rspi = new PNGImageReaderSpi();
46        if (rspi.getNativeStreamMetadataFormatName() != null) {
47            fatal();
48        }
49        if (rspi.isStandardStreamMetadataFormatSupported() != false) {
50            fatal();
51        }
52        if (rspi.getExtraStreamMetadataFormatNames() != null) {
53            fatal();
54        }
55
56        ImageWriterSpi wspi = new PNGImageWriterSpi();
57        if (wspi.getNativeStreamMetadataFormatName() != null) {
58            fatal();
59        }
60        if (wspi.isStandardStreamMetadataFormatSupported() != false) {
61            fatal();
62        }
63        if (wspi.getExtraStreamMetadataFormatNames() != null) {
64            fatal();
65        }
66    }
67}
68