diff -r 849ddafa3642 -r f7f615a3aaff jdk/test/javax/imageio/ImageReadParamPasses.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/test/javax/imageio/ImageReadParamPasses.java Mon May 22 19:54:23 2017 -0700 @@ -0,0 +1,101 @@ +/* + * Copyright (c) 2001, 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 4429365 + * @summary Checks that ImageReadParam.setSourceProgressivePasses handles + * overflow correctly + */ + +import javax.imageio.ImageReadParam; + +public class ImageReadParamPasses { + + private static final int maxint = Integer.MAX_VALUE; + + private static void expect(int i, int j) { + if (i != j) { + throw new RuntimeException("Expected " + i + ", got " + j); + } + } + + private static void checkForIAE(int minPass, int numPasses) { + ImageReadParam param = new ImageReadParam(); + + boolean gotIAE = false; + try { + param.setSourceProgressivePasses(minPass, numPasses); + } catch (IllegalArgumentException iae) { + gotIAE = true; + } + if (!gotIAE) { + throw new RuntimeException("Failed to get IAE for wraparound!"); + } + } + + private static void test(int minPass, int numPasses) { + ImageReadParam param = new ImageReadParam(); + + param.setSourceProgressivePasses(minPass, numPasses); + expect(param.getSourceMinProgressivePass(), minPass); + expect(param.getSourceNumProgressivePasses(), numPasses); + + int maxPass = numPasses == maxint ? maxint : minPass + numPasses - 1; + expect(param.getSourceMaxProgressivePass(), maxPass); + } + + public static void main(String[] args) { + // Typical case + test(17, 30); + + // Read all passes + test(0, maxint); + + // Start at pass 17, continue indefinitely + test(17, maxint); + + // Start at pass maxint - 10, continue indefinitely + test(maxint - 10, maxint); + + // Start at pass maxint - 10, go up to maxint - 1 + test(maxint - 10, 10); + + // Start at pass maxint - 10, go up to maxint + test(maxint - 10, 11); + + // Start at maxint, continue indefinitely :-) + test(maxint, maxint); + + // Start at maxint, go up to maxint + test(maxint, 1); + + // Check that an IllegalArgumentException is thrown if + // wraparound occurs + checkForIAE(maxint, 2); + checkForIAE(maxint - 5, 10); + checkForIAE(10, maxint - 5); + checkForIAE(maxint - 1000, maxint - 1000); + checkForIAE(maxint - 1, maxint - 1); + } +}