| /* |
| * Copyright (c) 1999, 2007, 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 4242173 5017980 6576055 |
| * @summary Test Byte.decode method |
| * @author madbot |
| * @author Joseph D. Darcy |
| */ |
| |
| /** |
| * There are six methods in java.lang.Byte which transform strings |
| * into a byte or Byte value: |
| * |
| * public Byte(String s) |
| * public static Byte decode(String nm) |
| * public static byte parseByte(String s, int radix) |
| * public static byte parseByte(String s) |
| * public static Byte valueOf(String s, int radix) |
| * public static Byte valueOf(String s) |
| * |
| * However, of these only decode has a nontrivial implementation |
| * in that class. |
| */ |
| public class Decode { |
| |
| private static void check(String val, byte expected) { |
| byte n = (Byte.decode(val)).byteValue(); |
| if (n != expected) |
| throw new RuntimeException("Byte.decode failed. String:" + |
| val + " Result:" + n); |
| } |
| |
| private static void checkFailure(String val, String message) { |
| try { |
| byte n = (Byte.decode(val)).byteValue(); |
| throw new RuntimeException(message); |
| } catch (NumberFormatException e) { /* Okay */} |
| } |
| |
| public static void main(String[] args) throws Exception { |
| check(new String(""+Byte.MIN_VALUE), Byte.MIN_VALUE); |
| check(new String(""+Byte.MAX_VALUE), Byte.MAX_VALUE); |
| |
| check("10", (byte)10); |
| check("0x10", (byte)16); |
| check("0X10", (byte)16); |
| check("010", (byte)8); |
| check("#10", (byte)16); |
| |
| check("+10", (byte)10); |
| check("+0x10", (byte)16); |
| check("+0X10", (byte)16); |
| check("+010", (byte)8); |
| check("+#10", (byte)16); |
| |
| check("-10", (byte)-10); |
| check("-0x10", (byte)-16); |
| check("-0X10", (byte)-16); |
| check("-010", (byte)-8); |
| check("-#10", (byte)-16); |
| |
| check(Integer.toString((int)Byte.MIN_VALUE), Byte.MIN_VALUE); |
| check(Integer.toString((int)Byte.MAX_VALUE), Byte.MAX_VALUE); |
| |
| checkFailure("0x-10", "Byte.decode allows negative sign in wrong position."); |
| checkFailure("0x+10", "Byte.decode allows positive sign in wrong position."); |
| |
| checkFailure("+", "Raw plus sign allowed."); |
| checkFailure("-", "Raw minus sign allowed."); |
| |
| checkFailure(Integer.toString((int)Byte.MIN_VALUE - 1), "Out of range"); |
| checkFailure(Integer.toString((int)Byte.MAX_VALUE + 1), "Out of range"); |
| |
| checkFailure("", "Empty String"); |
| } |
| } |