1 /* 2 * Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 4429365 27 * @summary Checks that ImageReadParam.setSourceProgressivePasses handles 28 * overflow correctly 29 */ 30 31 import javax.imageio.ImageReadParam; 32 33 public class ImageReadParamPasses { 34 35 private static final int maxint = Integer.MAX_VALUE; 36 37 private static void expect(int i, int j) { 38 if (i != j) { 39 throw new RuntimeException("Expected " + i + ", got " + j); 40 } 41 } 42 43 private static void checkForIAE(int minPass, int numPasses) { 44 ImageReadParam param = new ImageReadParam(); 45 46 boolean gotIAE = false; 47 try { 48 param.setSourceProgressivePasses(minPass, numPasses); 49 } catch (IllegalArgumentException iae) { 50 gotIAE = true; 51 } 52 if (!gotIAE) { 53 throw new RuntimeException("Failed to get IAE for wraparound!"); 54 } 55 } 56 57 private static void test(int minPass, int numPasses) { 58 ImageReadParam param = new ImageReadParam(); 59 60 param.setSourceProgressivePasses(minPass, numPasses); 61 expect(param.getSourceMinProgressivePass(), minPass); 62 expect(param.getSourceNumProgressivePasses(), numPasses); 63 64 int maxPass = numPasses == maxint ? maxint : minPass + numPasses - 1; 65 expect(param.getSourceMaxProgressivePass(), maxPass); 66 } 67 68 public static void main(String[] args) { 69 // Typical case 70 test(17, 30); 71 72 // Read all passes 73 test(0, maxint); 74 75 // Start at pass 17, continue indefinitely 76 test(17, maxint); 77 78 // Start at pass maxint - 10, continue indefinitely 79 test(maxint - 10, maxint); 80 81 // Start at pass maxint - 10, go up to maxint - 1 82 test(maxint - 10, 10); 83 84 // Start at pass maxint - 10, go up to maxint 85 test(maxint - 10, 11); 86 87 // Start at maxint, continue indefinitely :-) 88 test(maxint, maxint); 89 90 // Start at maxint, go up to maxint 91 test(maxint, 1); 92 93 // Check that an IllegalArgumentException is thrown if 94 // wraparound occurs 95 checkForIAE(maxint, 2); 96 checkForIAE(maxint - 5, 10); 97 checkForIAE(10, maxint - 5); 98 checkForIAE(maxint - 1000, maxint - 1000); 99 checkForIAE(maxint - 1, maxint - 1); 100 } 101 }