| /* |
| * 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); |
| } |
| } |