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