jdk-24/test/jdk/java/math/BigDecimal/ConstructorUnscaledValue.java
Joe Darcy 25e88b21af 8282252: Improve BigInteger/Decimal validation
Reviewed-by: jboes, rhalade, skoivu, bpb, smarks
2022-10-18 22:41:14 +00:00

65 lines
2.3 KiB
Java

/*
* Copyright (c) 2022, 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 8282252
* @summary Test constructors of BigDecimal to replace BigInteger subclasses
*/
import java.math.*;
public class ConstructorUnscaledValue {
public static void main(String... args) {
TestBigInteger tbi = new TestBigInteger(BigInteger.ONE);
// Create BigDecimal's using each of the three constructors
// with guards on the class of unscaledValue
BigDecimal[] values = {
new BigDecimal(tbi),
new BigDecimal(tbi, 2),
new BigDecimal(tbi, 3, MathContext.DECIMAL32),
};
for (var bd : values) {
BigInteger unscaledValue = bd.unscaledValue();
if (unscaledValue.getClass() != BigInteger.class) {
throw new RuntimeException("Bad class for unscaledValue");
}
if (!unscaledValue.equals(BigInteger.ONE)) {
throw new RuntimeException("Bad value for unscaledValue");
}
}
}
private static class TestBigInteger extends BigInteger {
public TestBigInteger(BigInteger bi) {
super(bi.toByteArray());
}
@Override
public String toString() {
return java.util.Arrays.toString(toByteArray());
}
}
}