1 /*
   2  * Copyright (c) 2003, 2018, 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 4108852
  27  * @summary A few tests of stripTrailingZeros
  28  * @run main StrippingZerosTest
  29  * @run main/othervm -XX:+EliminateAutoBox -XX:AutoBoxCacheMax=20000 StrippingZerosTest
  30  * @author Joseph D. Darcy
  31  */
  32 
  33 import java.math.*;
  34 
  35 public class StrippingZerosTest {
  36     public static void main(String argv[]) {
  37         BigDecimal [][] testCases = {
  38             {new BigDecimal("1.00000"),         new BigDecimal("1")},
  39             {new BigDecimal("1.000"),           new BigDecimal("1")},
  40             {new BigDecimal("1"),               new BigDecimal("1")},
  41             {new BigDecimal("0.1234"),          new BigDecimal("0.1234")},
  42             {new BigDecimal("0.12340"),         new BigDecimal("0.1234")},
  43             {new BigDecimal("0.12340000000"),   new BigDecimal("0.1234")},
  44             {new BigDecimal("1234.5678"),       new BigDecimal("1234.5678")},
  45             {new BigDecimal("1234.56780"),      new BigDecimal("1234.5678")},
  46             {new BigDecimal("1234.567800000"),  new BigDecimal("1234.5678")},
  47             {new BigDecimal("0"),               new BigDecimal("0")},
  48             {new BigDecimal("0e2"),             BigDecimal.ZERO},
  49             {new BigDecimal("0e-2"),            BigDecimal.ZERO},
  50             {new BigDecimal("0e42"),            BigDecimal.ZERO},
  51             {new BigDecimal("+0e42"),           BigDecimal.ZERO},
  52             {new BigDecimal("-0e42"),           BigDecimal.ZERO},
  53             {new BigDecimal("0e-42"),           BigDecimal.ZERO},
  54             {new BigDecimal("+0e-42"),          BigDecimal.ZERO},
  55             {new BigDecimal("-0e-42"),          BigDecimal.ZERO},
  56             {new BigDecimal("0e-2"),            BigDecimal.ZERO},
  57             {new BigDecimal("0e100"),           BigDecimal.ZERO},
  58             {new BigDecimal("0e-100"),          BigDecimal.ZERO},
  59             {new BigDecimal("10"),              new BigDecimal("1e1")},
  60             {new BigDecimal("20"),              new BigDecimal("2e1")},
  61             {new BigDecimal("100"),             new BigDecimal("1e2")},
  62             {new BigDecimal("1000000000"),      new BigDecimal("1e9")},
  63             {new BigDecimal("100000000e1"),     new BigDecimal("1e9")},
  64             {new BigDecimal("10000000e2"),      new BigDecimal("1e9")},
  65             {new BigDecimal("1000000e3"),       new BigDecimal("1e9")},
  66             {new BigDecimal("100000e4"),        new BigDecimal("1e9")},
  67             // BD value which larger than Long.MaxValue
  68             {new BigDecimal("1.0000000000000000000000000000"),    new BigDecimal("1")},
  69             {new BigDecimal("-1.0000000000000000000000000000"),   new BigDecimal("-1")},
  70             {new BigDecimal("1.00000000000000000000000000001"),   new BigDecimal("1.00000000000000000000000000001")},
  71             {new BigDecimal("1000000000000000000000000000000e4"), new BigDecimal("1e34")},
  72         };
  73 
  74         for(int i = 0; i < testCases.length; i++) {
  75 
  76             if (!(testCases[i][0]).stripTrailingZeros().equals(testCases[i][1])) {
  77                 throw new RuntimeException("For input " + testCases[i][0].toString() +
  78                                            " did not received expected result " +
  79                                            testCases[i][1].toString() + ",  got " +
  80                                            testCases[i][0].stripTrailingZeros());
  81             }
  82 
  83             testCases[i][0] = testCases[i][0].negate();
  84             testCases[i][1] = testCases[i][1].negate();
  85 
  86             if (!(testCases[i][0]).stripTrailingZeros().equals(testCases[i][1])) {
  87                 throw new RuntimeException("For input " + testCases[i][0].toString() +
  88                                            " did not received expected result " +
  89                                            testCases[i][1].toString() + ",  got " +
  90                                            testCases[i][0].stripTrailingZeros());
  91             }
  92 
  93         }
  94     }
  95 }