1 /*
   2  * Copyright (c) 2013, 2015, 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 8025657
  27  * @summary Test repeating addExact
  28  * @library /testlibrary
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  * @compile AddExactIRepeatTest.java Verify.java
  32  * @run main AddExactIRepeatTest
  33  *
  34  */
  35 
  36 import jdk.test.lib.Utils;
  37 import java.util.Random;
  38 
  39 public class AddExactIRepeatTest {
  40     public static void main(String[] args) {
  41         runTest(new Verify.AddExactI());
  42     }
  43 
  44     public static int nonExact(int x, int y, Verify.BinaryMethod method) {
  45         int result = method.unchecked(x, y);
  46         result += method.unchecked(x, y);
  47         result += method.unchecked(x, y);
  48         result += method.unchecked(x, y);
  49         return result;
  50     }
  51 
  52     public static void runTest(Verify.BinaryMethod method) {
  53         Random rnd = Utils.getRandomInstance();
  54         for (int i = 0; i < 50000; ++i) {
  55             int x = Integer.MAX_VALUE - 10;
  56             int y = Integer.MAX_VALUE - 10 + rnd.nextInt(5);
  57 
  58             int c = rnd.nextInt() / 2;
  59             int d = rnd.nextInt() / 2;
  60 
  61             int a = catchingExact(x, y, method);
  62 
  63             if (a != 36) {
  64                 throw new RuntimeException("a != 36 : " + a);
  65             }
  66 
  67             int b = nonExact(c, d, method);
  68             int n = exact(c, d, method);
  69 
  70 
  71             if (n != b) {
  72                 throw new RuntimeException("n != b : " + n + " != " + b);
  73             }
  74         }
  75     }
  76 
  77     public static int exact(int x, int y, Verify.BinaryMethod method) {
  78         int result = 0;
  79         result += method.checkMethod(x, y);
  80         result += method.checkMethod(x, y);
  81         result += method.checkMethod(x, y);
  82         result += method.checkMethod(x, y);
  83         return result;
  84     }
  85 
  86     public static int catchingExact(int x, int y, Verify.BinaryMethod method) {
  87         int result = 0;
  88         try {
  89             result += 5;
  90             result = method.checkMethod(x, y);
  91         } catch (ArithmeticException e) {
  92             result += 1;
  93         }
  94         try {
  95             result += 6;
  96 
  97             result += method.checkMethod(x, y);
  98         } catch (ArithmeticException e) {
  99             result += 2;
 100         }
 101         try {
 102             result += 7;
 103             result += method.checkMethod(x, y);
 104         } catch (ArithmeticException e) {
 105             result += 3;
 106         }
 107         try {
 108             result += 8;
 109             result += method.checkMethod(x, y);
 110         } catch (ArithmeticException e) {
 111             result += 4;
 112         }
 113         return result;
 114     }
 115 }