/*
* Copyright (c) 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.
*
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*/
/*
* @test
* @bug 4136371 5017980 6576055
* @summary Test Integer.decode method
* @author madbot
* @author Joseph D. Darcy
*/
/**
* There are six methods in java.lang.Integer which transform strings
* into an int or Integer value:
*
* public Integer(String s)
* public static Integer decode(String nm)
* public static int parseInteger(String s, int radix)
* public static int parseInteger(String s)
* public static Integer valueOf(String s, int radix)
* public static Integer valueOf(String s)
*
* The other five methods are tested elsewhere.
*/
public class Decode {
private static void check(String val, int expected) {
int n = (Integer.decode(val)).intValue();
if (n != expected)
throw new RuntimeException("Integer.decode failed. String:" +
val + " Result:" + n);
}
private static void checkFailure(String val, String message) {
try {
int n = (Integer.decode(val)).intValue();
throw new RuntimeException(message);
} catch (NumberFormatException e) { /* Okay */}
}
public static void main(String[] args) throws Exception {
check(new String(""+Integer.MIN_VALUE), Integer.MIN_VALUE);
check(new String(""+Integer.MAX_VALUE), Integer.MAX_VALUE);
check("10", 10);
check("0x10", 16);
check("0X10", 16);
check("010", 8);
check("#10", 16);
check("+10", 10);
check("+0x10", 16);
check("+0X10", 16);
check("+010", 8);
check("+#10", 16);
check("-10", -10);
check("-0x10", -16);
check("-0X10", -16);
check("-010", -8);
check("-#10", -16);
check(Long.toString(Integer.MIN_VALUE), Integer.MIN_VALUE);
check(Long.toString(Integer.MAX_VALUE), Integer.MAX_VALUE);
checkFailure("0x-10", "Integer.decode allows negative sign in wrong position.");
checkFailure("0x+10", "Integer.decode allows positive sign in wrong position.");
checkFailure("+", "Raw plus sign allowed.");
checkFailure("-", "Raw minus sign allowed.");
checkFailure(Long.toString((long)Integer.MIN_VALUE - 1L), "Out of range");
checkFailure(Long.toString((long)Integer.MAX_VALUE + 1L), "Out of range");
checkFailure("", "Empty String");
try {
Integer.decode(null);
throw new RuntimeException("Integer.decode(null) expected to throw NPE");
} catch (NullPointerException npe) {/* Okay */}
}
}