diff -r dde53d789c3d -r f17a797c910a test/jdk/javax/imageio/plugins/png/PngNegativeDimensionTest.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/jdk/javax/imageio/plugins/png/PngNegativeDimensionTest.java Tue Nov 14 12:38:39 2017 +0530 @@ -0,0 +1,103 @@ +/* + * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/** + * @test + * @bug 8190512 + * @summary Test verifies whether PNGImageReader throws IIOException with proper + * message or not when IHDR chunk contains negative value for width + * and height. + * @run main PngNegativeDimensionTest + */ + +import java.io.ByteArrayInputStream; +import java.io.InputStream; +import java.util.Base64; +import javax.imageio.ImageIO; + +public class PngNegativeDimensionTest { + + private static String negativeWidthString = "iVBORw0KGgoAAAANSUhEUoAAAAEAA" + + "AABCAAAAAA6fptVAAAACklEQVQYV2P4DwABAQEAWk1v8QAAAABJRU5ErkJgggo="; + + private static String negativeHeightString = "iVBORw0KGgoAAAANSUhEUgAAAAGAA" + + "AABCAAAAAA6fptVAAAACklEQVQYV2P4DwABAQEAWk1v8QAAAABJRU5ErkJgggo="; + + private static InputStream input; + private static Boolean failed = false; + + public static void main(String[] args) { + // Create InputStream + byte[] inputBytes = Base64.getDecoder().decode(negativeWidthString); + input = new ByteArrayInputStream(inputBytes); + // Attempt to read PNG with negative IHDR width + readNegativeIHDRWidthImage(); + + inputBytes = Base64.getDecoder().decode(negativeHeightString); + input = new ByteArrayInputStream(inputBytes); + // Attempt to read PNG with negative IHDR height + readNegativeIHDRHeightImage(); + + if (failed) { + throw new RuntimeException("Test didnt throw proper IIOException" + + " when IHDR width/height is negative"); + } + } + + private static void readNegativeIHDRWidthImage() { + try { + ImageIO.read(input); + } catch (Exception e) { + /* + * We expect the test case to throw IIOException with message + * under root cause as "Image width <= 0!". If it throws + * any other message or exception test will fail. + */ + Throwable cause = e.getCause(); + if (cause == null || + (!(cause.getMessage().equals("Image width <= 0!")))) + { + failed = true; + } + } + } + + private static void readNegativeIHDRHeightImage() { + try { + ImageIO.read(input); + } catch (Exception e) { + /* + * We expect the test case to throw IIOException with message + * under root cause as "Image height <= 0!". If it throws + * any other message or exception test will fail. + */ + Throwable cause = e.getCause(); + if (cause == null || + (!(cause.getMessage().equals("Image height <= 0!")))) + { + failed = true; + } + } + } +} +