1   /*
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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
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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
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22   */
23  
24  /*
25   * @test
26   * @bug 1234567
27   * @summary Test BigDecimal.equals() method.
28   * @author xlu
29   */
30  
31  import java.math.*;
32  import static java.math.BigDecimal.*;
33  
34  public class EqualsTests {
35  
36      public static void main(String argv[]) {
37          int failures = 0;
38  
39          BigDecimal[][] testValues = {
40              // The even index is supposed to return true for equals call and
41              // the odd index is supposed to return false, i.e. not equal.
42              {ZERO, ZERO},
43              {ONE, TEN},
44  
45              {valueOf(Integer.MAX_VALUE), valueOf(Integer.MAX_VALUE)},
46              {valueOf(Long.MAX_VALUE), valueOf(-Long.MAX_VALUE)},
47  
48              {valueOf(12345678), valueOf(12345678)},
49              {valueOf(123456789), valueOf(123456788)},
50  
51              {new BigDecimal("123456789123456789123"),
52               new BigDecimal(new BigInteger("123456789123456789123"))},
53              {new BigDecimal("123456789123456789123"),
54               new BigDecimal(new BigInteger("123456789123456789124"))},
55  
56              {valueOf(Long.MIN_VALUE), new BigDecimal("-9223372036854775808")},
57              {new BigDecimal("9223372036854775808"), valueOf(Long.MAX_VALUE)},
58  
59              {valueOf(Math.round(Math.pow(2, 10))), new BigDecimal("1024")},
60              {new BigDecimal("1020"), valueOf(Math.pow(2, 11))},
61  
62              {new BigDecimal(BigInteger.valueOf(2).pow(65)),
63               new BigDecimal("36893488147419103232")},
64              {new BigDecimal("36893488147419103231.81"),
65               new BigDecimal("36893488147419103231.811"),
66              }
67          };
68  
69          boolean expected = Boolean.TRUE;
70          for (BigDecimal[] testValuePair : testValues) {
71              failures += equalsTest(testValuePair[0], testValuePair[1], expected);
72              expected = !expected;
73          }
74  
75          if (failures > 0) {
76              throw new RuntimeException("Inccured " + failures +
77                                         " failures while testing equals.");
78          }
79      }
80  
81      private static int equalsTest(BigDecimal l, BigDecimal r, boolean expected) {
82          boolean result = l.equals(r);
83          int failed = (result == expected) ? 0 : 1;
84  
85          if (failed == 1) {
86              System.err.println(l + " .equals(" + r + ") => " + result +
87                                 "\n\tExpected " + expected);
88          }
89          return failed;
90      }
91  }