test/jdk/java/math/BigDecimal/ScaleByPowerOfTenTests.java

/*
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 * 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.
 *
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 */

/*
 * @test
 * @bug 4899722
 * @summary Basic tests of scaleByPowerOfTen
 * @author Joseph D. Darcy
 */

import java.math.*;

public class ScaleByPowerOfTenTests {

    public static void main(String argv[]) {
        for (int i = -10; i < 10; i++) {
            BigDecimal bd = BigDecimal.ONE.scaleByPowerOfTen(i);
            BigDecimal expected;

            if (!bd.equals(expected = new BigDecimal(BigInteger.ONE, -i))) {
                throw new RuntimeException("Unexpected result " +
                                           bd.toString() +
                                           "; expected " +
                                           expected.toString());
            }

            bd = BigDecimal.ONE.negate().scaleByPowerOfTen(i);
            if (!bd.equals(expected = new BigDecimal(BigInteger.ONE.negate(), -i))) {
                throw new RuntimeException("Unexpected result " +
                                           bd.toString() +
                                           "; expected " +
                                           expected.toString());
            }


        }
    }
}