1 /*
   2  * Copyright 2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 6334849
  27  * @summary Tests of dropping digits near the scale threshold
  28  * @author Joseph D. Darcy
  29  */
  30 import java.math.*;
  31 public class RoundingTests {
  32     private static int roundingTests() {
  33         int failures = 0;
  34         BigDecimal bd1 = BigDecimal.valueOf(11, Integer.MIN_VALUE);
  35         BigDecimal bd2 = null;
  36         MathContext mc = new MathContext(1);
  37         try {
  38                 bd2 = bd1.round(mc); // should overflow here
  39                 failures++;
  40                 System.err.printf("Did not get expected overflow rounding %s to %d digits, got %s%n",
  41                                    bd1, mc.getPrecision(), bd2);
  42         } catch(ArithmeticException e) {
  43             ; // expected
  44         }
  45         return failures;
  46     }
  47 
  48     public static void main(String argv[]) {
  49         int failures = 0;
  50 
  51         failures += roundingTests();
  52 
  53         if (failures > 0) {
  54             System.err.println("Encountered " + failures +
  55                                " failures while testing rounding.");
  56             throw new RuntimeException();
  57         }
  58     }
  59 }