1/*
2 * Copyright (c) 2006, 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 6850606
27 * @summary Test BigDecimal.multiply(BigDecimal)
28 * @author xlu
29 */
30
31import java.math.*;
32import static java.math.BigDecimal.*;
33
34public class MultiplyTests {
35
36    private static int multiplyTests() {
37        int failures = 0;
38
39        BigDecimal[] bd1 = {
40            new BigDecimal("123456789"),
41            new BigDecimal("1234567898"),
42            new BigDecimal("12345678987")
43        };
44
45        BigDecimal[] bd2 = {
46            new BigDecimal("987654321"),
47            new BigDecimal("8987654321"),
48            new BigDecimal("78987654321")
49        };
50
51        // Two dimensonal array recording bd1[i] * bd2[j] &
52        // 0 <= i <= 2 && 0 <= j <= 2;
53        BigDecimal[][] expectedResults = {
54            {new BigDecimal("121932631112635269"),
55             new BigDecimal("1109586943112635269"),
56             new BigDecimal("9751562173112635269")
57            },
58            { new BigDecimal("1219326319027587258"),
59              new BigDecimal("11095869503027587258"),
60              new BigDecimal("97515622363027587258")
61            },
62            { new BigDecimal("12193263197189452827"),
63              new BigDecimal("110958695093189452827"),
64              new BigDecimal("975156224183189452827")
65            }
66        };
67
68        for (int i = 0; i < bd1.length; i++) {
69            for (int j = 0; j < bd2.length; j++) {
70                if (!bd1[i].multiply(bd2[j]).equals(expectedResults[i][j])) {
71                    failures++;
72                }
73            }
74        }
75
76        BigDecimal x = BigDecimal.valueOf(8L, 1);
77        BigDecimal xPower = BigDecimal.valueOf(-1L);
78        try {
79            for (int i = 0; i < 100; i++) {
80                xPower = xPower.multiply(x);
81            }
82        } catch (Exception ex) {
83            failures++;
84        }
85        return failures;
86    }
87
88    public static void main(String[] args) {
89        int failures = 0;
90
91        failures += multiplyTests();
92
93        if (failures > 0) {
94            throw new RuntimeException("Incurred " + failures +
95                                       " failures while testing multiply.");
96        }
97    }
98}
99