103 lines
3.6 KiB
Java
103 lines
3.6 KiB
Java
/*
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* Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4136371 5017980 6576055
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* @summary Test Integer.decode method
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* @author madbot
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* @author Joseph D. Darcy
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*/
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/**
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* There are six methods in java.lang.Integer which transform strings
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* into an int or Integer value:
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*
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* public Integer(String s)
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* public static Integer decode(String nm)
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* public static int parseInteger(String s, int radix)
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* public static int parseInteger(String s)
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* public static Integer valueOf(String s, int radix)
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* public static Integer valueOf(String s)
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*
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* The other five methods are tested elsewhere.
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*/
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public class Decode {
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private static void check(String val, int expected) {
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int n = (Integer.decode(val)).intValue();
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if (n != expected)
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throw new RuntimeException("Integer.decode failed. String:" +
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val + " Result:" + n);
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}
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private static void checkFailure(String val, String message) {
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try {
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int n = (Integer.decode(val)).intValue();
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throw new RuntimeException(message);
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} catch (NumberFormatException e) { /* Okay */}
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}
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public static void main(String[] args) throws Exception {
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check(new String(""+Integer.MIN_VALUE), Integer.MIN_VALUE);
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check(new String(""+Integer.MAX_VALUE), Integer.MAX_VALUE);
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check("10", 10);
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check("0x10", 16);
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check("0X10", 16);
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check("010", 8);
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check("#10", 16);
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check("+10", 10);
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check("+0x10", 16);
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check("+0X10", 16);
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check("+010", 8);
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check("+#10", 16);
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check("-10", -10);
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check("-0x10", -16);
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check("-0X10", -16);
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check("-010", -8);
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check("-#10", -16);
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check(Long.toString(Integer.MIN_VALUE), Integer.MIN_VALUE);
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check(Long.toString(Integer.MAX_VALUE), Integer.MAX_VALUE);
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checkFailure("0x-10", "Integer.decode allows negative sign in wrong position.");
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checkFailure("0x+10", "Integer.decode allows positive sign in wrong position.");
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checkFailure("+", "Raw plus sign allowed.");
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checkFailure("-", "Raw minus sign allowed.");
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checkFailure(Long.toString((long)Integer.MIN_VALUE - 1L), "Out of range");
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checkFailure(Long.toString((long)Integer.MAX_VALUE + 1L), "Out of range");
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checkFailure("", "Empty String");
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try {
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Integer.decode(null);
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throw new RuntimeException("Integer.decode(null) expected to throw NPE");
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} catch (NullPointerException npe) {/* Okay */}
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}
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}
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