jars/icu4j-52_1/main/tests/core/src/com/ibm/icu/dev/test/lang/UCharacterThreadTest.java

   1 /*
   2  *******************************************************************************
   3  * Copyright (C) 2008, International Business Machines Corporation and         *
   4  * others. All Rights Reserved.                                                *
   5  *******************************************************************************
   6  */
   7 package com.ibm.icu.dev.test.lang;
   8
   9 import java.util.LinkedList;
  10 import java.util.List;
  11 import java.util.ListIterator;
  12
  13 import com.ibm.icu.dev.test.TestFmwk;
  14 import com.ibm.icu.lang.UCharacter;
  15
  16 /**
  17  * @author aheninger
  18  *
  19  */
  20 public class UCharacterThreadTest extends TestFmwk {
  21   // constructor -----------------------------------------------------------
  22
  23     /**
  24     * Private constructor to prevent initialisation
  25     */
  26     public UCharacterThreadTest()
  27     {
  28     }
  29
  30       // public methods --------------------------------------------------------
  31
  32     public static void main(String[] arg)
  33     {
  34         try
  35         {
  36             UCharacterThreadTest test = new UCharacterThreadTest();
  37             test.run(arg);
  38         }
  39         catch (Exception e)
  40         {
  41               e.printStackTrace();
  42         }
  43     }
  44
  45
  46     //
  47     //  Test multi-threaded parallel calls to UCharacter.getName(codePoint)
  48     //  Regression test for ticket 6264.
  49     //
  50     public void TestUCharactersGetName() throws InterruptedException {
  51         List threads = new LinkedList();
  52         for(int t=0; t<20; t++) {
  53           int codePoint = 47 + t;
  54           String correctName = UCharacter.getName(codePoint);
  55           GetNameThread thread = new GetNameThread(codePoint, correctName);
  56           thread.start();
  57           threads.add(thread);
  58         }
  59         ListIterator i = threads.listIterator();
  60         while (i.hasNext()) {
  61             GetNameThread thread = (GetNameThread)i.next();
  62             thread.join();
  63             if (!thread.correctName.equals(thread.actualName)) {
  64                 errln("FAIL, expected \"" + thread.correctName + "\", got \"" + thread.actualName + "\"");
  65             }
  66         }
  67       }
  68
  69       private static class GetNameThread extends Thread {
  70         private final int codePoint;
  71         private final String correctName;
  72         private String actualName;
  73
  74         GetNameThread(int codePoint, String correctName) {
  75            this.codePoint = codePoint;
  76            this.correctName = correctName;
  77         }
  78
  79         public void run() {
  80           for(int i=0; i<10000; i++) {
  81             actualName = UCharacter.getName(codePoint);
  82             if (!correctName.equals(actualName)) {
  83               break;
  84             }
  85           }
  86         }
  87       }
  88 }