1 /* 2 * Copyright (c) 2010, 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 7003643 27 * @summary Make sure MessageFormat.toPattern produces correct quoting. (SPI part is tested in PluggableLocale tests.) 28 * @key randomness 29 */ 30 31 import java.text.*; 32 import java.util.*; 33 34 public class Bug7003643 { 35 private static final int N = 5; 36 37 private static final String[] elements = { 38 "'{'", "'{", "{", "''", "}", "a", "'", 39 }; 40 41 public static void main(String[] args) { 42 Random rand = new Random(); 43 int count = 0; 44 int max = (int) (Math.pow((double)elements.length, (double)N)/0.52); 45 while (count < max) { 46 // Create a random pattern. If the produced pattern is 47 // valid, then proceed with the round-trip testing. 48 StringBuilder sb = new StringBuilder(); 49 for (int i = 0; i < N; i++) { 50 sb.append(elements[rand.nextInt(elements.length)]); 51 } 52 String pattern = sb.toString(); 53 MessageFormat mf = null; 54 try { 55 mf = new MessageFormat(pattern); 56 } catch (IllegalArgumentException e) { 57 // bad pattern data 58 } 59 if (mf == null) { 60 continue; 61 } 62 count++; 63 String res1 = MessageFormat.format(pattern, 123); 64 String toPattern = mf.toPattern(); 65 String res2 = MessageFormat.format(toPattern, 123); 66 if (!res1.equals(res2)) { 67 String s = String.format("Failed%n pattern=\"%s\" => result=\"%s\"%n" 68 + " toPattern()=\"%s\" => result=\"%s\"%n", 69 pattern, res1, toPattern, res2); 70 throw new RuntimeException(s); 71 } 72 } 73 } 74 }