rev 9925 : 8041972: Add improved parse/format methods for Long/Integer
Contributed-by: redestad

   1 /*
   2  * Copyright (c) 2006, 2007, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 5017980 6576055
  27  * @summary Test parsing methods
  28  * @author Joseph D. Darcy
  29  */
  30 


  31 
  32 /**
  33  * There are six methods in java.lang.Integer which transform strings
  34  * into an int or Integer value:
  35  *
  36  * public Integer(String s)
  37  * public static Integer decode(String nm)
  38  * public static int parseInt(String s, int radix)
  39  * public static int parseInt(String s)
  40  * public static Integer valueOf(String s, int radix)
  41  * public static Integer valueOf(String s)
  42  *
  43  * Besides decode, all the methods and constructor call down into
  44  * parseInt(String, int) to do the actual work.  Therefore, the
  45  * behavior of parseInt(String, int) will be tested here.




  46  */
  47 
  48 public class ParsingTest {



  49     public static void main(String... argv) {
  50         check("+100", +100);
  51         check("-100", -100);
  52 
  53         check("+0", 0);
  54         check("-0", 0);
  55         check("+00000", 0);
  56         check("-00000", 0);
  57 



  58         check("0", 0);
  59         check("1", 1);
  60         check("9", 9);
  61 
  62         checkFailure("\u0000");
  63         checkFailure("\u002f");
  64         checkFailure("+");
  65         checkFailure("-");
  66         checkFailure("++");
  67         checkFailure("+-");
  68         checkFailure("-+");
  69         checkFailure("--");
  70         checkFailure("++100");
  71         checkFailure("--100");
  72         checkFailure("+-6");
  73         checkFailure("-+6");
  74         checkFailure("*100");










  75     }
  76 
  77     private static void check(String val, int expected) {
  78         int n = Integer.parseInt(val);
  79         if (n != expected)
  80             throw new RuntimeException("Integer.parsedInt failed. String:" +
  81                                                 val + " Result:" + n);
  82     }
  83 
  84     private static void checkFailure(String val) {
  85         int n = 0;
  86         try {
  87             n = Integer.parseInt(val);
  88             System.err.println("parseInt(" + val + ") incorrectly returned " + n);
  89             throw new RuntimeException();
  90         } catch (NumberFormatException nfe) {
  91             ; // Expected
  92         }


















  93     }
  94 }
--- EOF ---