| /* |
| * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6850606 |
| * @summary Test BigDecimal.multiply(BigDecimal) |
| * @author xlu |
| */ |
| |
| import java.math.*; |
| import static java.math.BigDecimal.*; |
| |
| public class MultiplyTests { |
| |
| private static int multiplyTests() { |
| int failures = 0; |
| |
| BigDecimal[] bd1 = { |
| new BigDecimal("123456789"), |
| new BigDecimal("1234567898"), |
| new BigDecimal("12345678987") |
| }; |
| |
| BigDecimal[] bd2 = { |
| new BigDecimal("987654321"), |
| new BigDecimal("8987654321"), |
| new BigDecimal("78987654321") |
| }; |
| |
| // Two dimensonal array recording bd1[i] * bd2[j] & |
| // 0 <= i <= 2 && 0 <= j <= 2; |
| BigDecimal[][] expectedResults = { |
| {new BigDecimal("121932631112635269"), |
| new BigDecimal("1109586943112635269"), |
| new BigDecimal("9751562173112635269") |
| }, |
| { new BigDecimal("1219326319027587258"), |
| new BigDecimal("11095869503027587258"), |
| new BigDecimal("97515622363027587258") |
| }, |
| { new BigDecimal("12193263197189452827"), |
| new BigDecimal("110958695093189452827"), |
| new BigDecimal("975156224183189452827") |
| } |
| }; |
| |
| for (int i = 0; i < bd1.length; i++) { |
| for (int j = 0; j < bd2.length; j++) { |
| if (!bd1[i].multiply(bd2[j]).equals(expectedResults[i][j])) { |
| failures++; |
| } |
| } |
| } |
| |
| BigDecimal x = BigDecimal.valueOf(8L, 1); |
| BigDecimal xPower = BigDecimal.valueOf(-1L); |
| try { |
| for (int i = 0; i < 100; i++) { |
| xPower = xPower.multiply(x); |
| } |
| } catch (Exception ex) { |
| failures++; |
| } |
| return failures; |
| } |
| |
| public static void main(String[] args) { |
| int failures = 0; |
| |
| failures += multiplyTests(); |
| |
| if (failures > 0) { |
| throw new RuntimeException("Incurred " + failures + |
| " failures while testing multiply."); |
| } |
| } |
| } |