russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
99 lines
3.9 KiB
Java
99 lines
3.9 KiB
Java
/*
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* Copyright (c) 2025, 2026, 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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* @bug 8361748 8377924
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* @summary Tests XBM image size limits and if XBMImageDecoder.produceImage()
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* throws appropriate error when parsing invalid XBM image data.
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* @run main XBMDecoderTest
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*/
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import java.awt.Graphics2D;
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import java.awt.Image;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.PrintStream;
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import java.util.Arrays;
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import javax.swing.ImageIcon;
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public class XBMDecoderTest {
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public static void main(String[] args) throws Exception {
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String dir = System.getProperty("test.src");
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PrintStream originalErr = System.err;
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boolean validCase;
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File currentDir = new File(dir);
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File[] files = currentDir.listFiles((File d, String s)
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-> s.endsWith(".xbm"));
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for (File file : files) {
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String fileName = file.getName();
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validCase = fileName.startsWith("valid");
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System.out.println("--- Testing " + fileName + " ---");
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try (FileInputStream fis = new FileInputStream(file);
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ByteArrayOutputStream errContent = new ByteArrayOutputStream()) {
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System.setErr(new PrintStream(errContent));
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ImageIcon icon = new ImageIcon(fis.readAllBytes());
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boolean isErrEmpty = errContent.toString().isEmpty();
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if (!isErrEmpty) {
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if (!validCase) {
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System.out.println("Expected ImageFormatException occurred.");
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}
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System.out.print(errContent);
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}
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if (validCase && !isErrEmpty) {
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throw new RuntimeException("Test failed: Error stream not empty");
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} else if (!validCase && isErrEmpty && hasPixelData(icon.getImage())) {
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throw new RuntimeException("Test failed: ImageFormatException"
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+ " expected but not thrown");
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}
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if (validCase && !hasPixelData(icon.getImage())) {
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throw new RuntimeException("Test failed: the parsed image " +
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"does not contain any pixel data");
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}
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System.out.println("PASSED\n");
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} finally {
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System.setErr(originalErr);
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}
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}
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}
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private static boolean hasPixelData(Image img) {
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int w = img.getWidth(null);
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int h = img.getHeight(null);
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BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
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Graphics2D g = bi.createGraphics();
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g.drawImage(img, 0, 0, null);
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g.dispose();
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int[] pixels = bi.getRGB(0, 0, w, h, null, 0, w);
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return !Arrays.stream(pixels)
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.allMatch(i -> i == 0);
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}
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}
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