1 /* 2 * Copyright 1998-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 20 * CA 95054 USA or visit www.sun.com if you need additional information or 21 * have any questions. 22 */ 23 24 /* 25 * @test 26 * @bug 4136371 5017980 6576055 27 * @summary Test Long.decode method 28 * @author madbot 29 * @author Joseph D. Darcy 30 */ 31 32 import java.math.BigInteger; 33 34 /** 35 * There are six methods in java.lang.Integer which transform strings 36 * into a long or Long value: 37 * 38 * public Long(String s) 39 * public static Long decode(String nm) 40 * public static long parseLong(String s, int radix) 41 * public static long parseLong(String s) 42 * public static Long valueOf(String s, int radix) 43 * public static Long valueOf(String s) 44 * 45 * The other five methods are tested elsewhere. 46 */ 47 public class Decode { 48 49 private static void check(String val, long expected) { 50 long n = (Long.decode(val)).longValue(); 51 if (n != expected) 52 throw new RuntimeException("Long.decode failed. String:" + 53 val + " Result:" + n); 54 } 55 56 private static void checkFailure(String val, String message) { 57 try { 58 long n = (Long.decode(val)).longValue(); 59 throw new RuntimeException(message); 60 } catch (NumberFormatException e) { /* Okay */} 61 } 62 63 public static void main(String[] args) throws Exception { 64 check(new String(""+Long.MIN_VALUE), Long.MIN_VALUE); 65 check(new String(""+Long.MAX_VALUE), Long.MAX_VALUE); 66 67 check("10", 10L); 68 check("0x10", 16L); 69 check("0X10", 16L); 70 check("010", 8L); 71 check("#10", 16L); 72 73 check("+10", 10L); 74 check("+0x10", 16L); 75 check("+0X10", 16L); 76 check("+010", 8L); 77 check("+#10", 16L); 78 79 check("-10", -10L); 80 check("-0x10", -16L); 81 check("-0X10", -16L); 82 check("-010", -8L); 83 check("-#10", -16L); 84 85 check(Long.toString(Long.MIN_VALUE), Long.MIN_VALUE); 86 check(Long.toString(Long.MAX_VALUE), Long.MAX_VALUE); 87 88 checkFailure("0x-10", "Long.decode allows negative sign in wrong position."); 89 checkFailure("0x+10", "Long.decode allows positive sign in wrong position."); 90 91 checkFailure("+", "Raw plus sign allowed."); 92 checkFailure("-", "Raw minus sign allowed."); 93 94 checkFailure(BigInteger.valueOf(Long.MIN_VALUE).subtract(BigInteger.ONE).toString(), 95 "Out of range"); 96 checkFailure(BigInteger.valueOf(Long.MAX_VALUE).add(BigInteger.ONE).toString(), 97 "Out of range"); 98 99 checkFailure("", "Empty String"); 100 101 try { 102 Long.decode(null); 103 throw new RuntimeException("Long.decode(null) expected to throw NPE"); 104 } catch (NullPointerException npe) {/* Okay */} 105 } 106 }