70 lines
2.5 KiB
Java
70 lines
2.5 KiB
Java
/*
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* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @summary Verifies that canDecode does not throw EOFException
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* if the file has too few bytes.
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* @run main CanDecodeTest
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*/
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageReader;
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import javax.imageio.spi.ImageReaderSpi;
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import javax.imageio.stream.ImageInputStream;
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public class CanDecodeTest {
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private static final String[] FORMATS = {
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"WBMP", "BMP", "GIF", "PNG", "TIFF", "JPEG"
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};
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public static void main(String[] args) {
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for (String format : FORMATS) {
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ImageReader reader =
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ImageIO.getImageReadersByFormatName(format).next();
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ImageReaderSpi spi = reader.getOriginatingProvider();
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for (int n=0; n<8; n++) {
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InputStream dataStream =
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new ByteArrayInputStream(new byte[n]);
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try {
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ImageInputStream iis =
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ImageIO.createImageInputStream(dataStream);
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if (spi.canDecodeInput(iis)) {
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throw new RuntimeException("Test failed for " +
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format + " format: shall not decode.");
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}
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} catch (IOException e) {
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throw new RuntimeException("Test failed for " +
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format + " format: " + e, e);
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}
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}
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}
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}
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}
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