| /* |
| * Copyright (c) 1998, 2006, 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 4136371 5017980 6576055 |
| * @summary Test Long.decode method |
| * @author madbot |
| * @author Joseph D. Darcy |
| */ |
| |
| import java.math.BigInteger; |
| |
| /** |
| * There are six methods in java.lang.Integer which transform strings |
| * into a long or Long value: |
| * |
| * public Long(String s) |
| * public static Long decode(String nm) |
| * public static long parseLong(String s, int radix) |
| * public static long parseLong(String s) |
| * public static Long valueOf(String s, int radix) |
| * public static Long valueOf(String s) |
| * |
| * The other five methods are tested elsewhere. |
| */ |
| public class Decode { |
| |
| private static void check(String val, long expected) { |
| long n = (Long.decode(val)).longValue(); |
| if (n != expected) |
| throw new RuntimeException("Long.decode failed. String:" + |
| val + " Result:" + n); |
| } |
| |
| private static void checkFailure(String val, String message) { |
| try { |
| long n = (Long.decode(val)).longValue(); |
| throw new RuntimeException(message); |
| } catch (NumberFormatException e) { /* Okay */} |
| } |
| |
| public static void main(String[] args) throws Exception { |
| check(new String(""+Long.MIN_VALUE), Long.MIN_VALUE); |
| check(new String(""+Long.MAX_VALUE), Long.MAX_VALUE); |
| |
| check("10", 10L); |
| check("0x10", 16L); |
| check("0X10", 16L); |
| check("010", 8L); |
| check("#10", 16L); |
| |
| check("+10", 10L); |
| check("+0x10", 16L); |
| check("+0X10", 16L); |
| check("+010", 8L); |
| check("+#10", 16L); |
| |
| check("-10", -10L); |
| check("-0x10", -16L); |
| check("-0X10", -16L); |
| check("-010", -8L); |
| check("-#10", -16L); |
| |
| check(Long.toString(Long.MIN_VALUE), Long.MIN_VALUE); |
| check(Long.toString(Long.MAX_VALUE), Long.MAX_VALUE); |
| |
| checkFailure("0x-10", "Long.decode allows negative sign in wrong position."); |
| checkFailure("0x+10", "Long.decode allows positive sign in wrong position."); |
| |
| checkFailure("+", "Raw plus sign allowed."); |
| checkFailure("-", "Raw minus sign allowed."); |
| |
| checkFailure(BigInteger.valueOf(Long.MIN_VALUE).subtract(BigInteger.ONE).toString(), |
| "Out of range"); |
| checkFailure(BigInteger.valueOf(Long.MAX_VALUE).add(BigInteger.ONE).toString(), |
| "Out of range"); |
| |
| checkFailure("", "Empty String"); |
| |
| try { |
| Long.decode(null); |
| throw new RuntimeException("Long.decode(null) expected to throw NPE"); |
| } catch (NullPointerException npe) {/* Okay */} |
| } |
| } |