1 /*
   2  * Copyright (c) 1998, 2002, 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
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  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 4152868
  27  * @summary test Case Insensitive Comparator in String
  28  */
  29 
  30 import java.util.*;
  31 
  32 public class ICCBasher {
  33 
  34     static final int TEST_SIZE = 20;
  35     static final int STRING_SIZE = 5;
  36     static final int CHAR_VALUE_LIMIT = 128;
  37 
  38     public static void main(String[] args) throws Exception {
  39         LinkedList L1 = new LinkedList();
  40         LinkedList L2 = new LinkedList();
  41         LinkedList L3 = new LinkedList();
  42         LinkedList L4 = new LinkedList();
  43 
  44         // First generate L1 and L2 with random lower case chars
  45         //System.out.println("Generate L1 and L2");
  46         Random generator = new Random();
  47         int achar=0;
  48         StringBuffer entryBuffer = new StringBuffer(10);
  49         String snippet = null;
  50         for (int x=0; x<TEST_SIZE * 2; x++) {
  51             for(int y=0; y<STRING_SIZE; y++) {
  52                 achar = generator.nextInt(CHAR_VALUE_LIMIT);
  53                 char test = (char)(achar);
  54                 entryBuffer.append(test);
  55             }
  56             snippet = entryBuffer.toString();
  57             snippet.toLowerCase();
  58             if (x < TEST_SIZE)
  59                 L1.add(snippet);
  60             else
  61                 L2.add(snippet);
  62         }
  63 
  64         // Concatenate L1 and L2 to form L3
  65         //System.out.println("Generate L3");
  66         for (int x=0; x<TEST_SIZE; x++) {
  67             String entry = (String)L1.get(x) + (String)L2.get(x);
  68             L3.add(entry);
  69         }
  70 
  71         // Randomly toUpper L1 and L2
  72         //System.out.println("Modify L1 and L2");
  73         for (int x=0; x<TEST_SIZE; x++) {
  74             achar = generator.nextInt();
  75             if (achar > 0) {
  76                 String mod = (String)L1.get(x);
  77                 mod = mod.toUpperCase();
  78                 L1.set(x, mod);
  79             }
  80             achar = generator.nextInt();
  81             if (achar > 0) {
  82                 String mod = (String)L2.get(x);
  83                 mod = mod.toUpperCase();
  84                 L2.set(x, mod);
  85             }
  86         }
  87 
  88         // Concatenate L1 and L2 to form L4
  89         //System.out.println("Generate L4");
  90         for (int x=0; x<TEST_SIZE; x++) {
  91             String entry = (String)L1.get(x) + (String)L2.get(x);
  92             L4.add(entry);
  93         }
  94 
  95         // Sort L3 and L4 using case insensitive comparator
  96         //System.out.println("Sort L3 and L4");
  97         Collections.sort(L3, String.CASE_INSENSITIVE_ORDER);
  98         Collections.sort(L4, String.CASE_INSENSITIVE_ORDER);
  99 
 100         // Check to see that order of L3 and L4 are identical
 101         // ignoring case considerations
 102         //System.out.println("Check order of L3 and L4");
 103         for (int x=0; x<TEST_SIZE; x++) {
 104             String one = (String)L3.get(x);
 105             String two = (String)L4.get(x);
 106             if (!one.equalsIgnoreCase(two))
 107                 throw new RuntimeException("Case Insensitive Sort Failure.");
 108         }
 109 
 110     }
 111 }