| Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/Java/Openjdk/test/jdk/java/math/BigDecimal/ (Sun/Oracle ©) Datei vom 13.11.2022 mit Größe 10 kB |
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Quelle RangeTests.java Sprache: JAVA |
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/*
* Copyright (c) 2003, 2018, 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 7036582 * @summary Some new tests for the add method and constructor with MathContext. * @run main RangeTests * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+EliminateAutoBox -XX:AutoBo * @author Sergey V. Kuksenko */ import java.math.BigDecimal; import java.math.BigInteger; import java.math.MathContext; public class RangeTests { private static int addTest(BigDecimal arg1, BigDecimal arg2, BigDecimal expectedResult) { int failures = 0; BigDecimal result = arg1.add(arg2); if (!result.equals(expectedResult)) { System.out.println("Sum:" + arg1 + " + " + arg2 + " == " + result + "; expected " + expectedResult ); failures++; } result = arg2.add(arg1); if (!result.equals(expectedResult)) { System.out.println("Sum:" + arg2 + " + " + arg1 + " == " + result + "; expected " + expectedResult ); failures++; } return failures; } /* * Test BigDecimal.add(BigDecimal) when values are withing different ranges: * 1. within 32 bits * 2. within 64 bits * 3. outside 64 bits. */ private static int addBoundaryTest() { int failures = 0; failures += addTest( new BigDecimal("85070591730234615847396907784232501249"), BigDecimal.valueOf(0), new BigDecimal("85070591730234615847396907784232501249") ); failures += addTest( new BigDecimal("-85070591730234615847396907784232501249"), BigDecimal.valueOf(0), new BigDecimal("-85070591730234615847396907784232501249") ); failures += addTest( new BigDecimal("85070591730234615847396907784232501249"), BigDecimal.valueOf(1), new BigDecimal("85070591730234615847396907784232501250") ); failures += addTest( new BigDecimal("85070591730234615847396907784232501249"), BigDecimal.valueOf(-1), new BigDecimal("85070591730234615847396907784232501248") ); failures += addTest( new BigDecimal("-85070591730234615847396907784232501250"), BigDecimal.valueOf(-1), new BigDecimal("-85070591730234615847396907784232501251") ); failures += addTest( new BigDecimal("-85070591730234615847396907784232501249"), BigDecimal.valueOf(1), new BigDecimal("-85070591730234615847396907784232501248") ); failures += addTest( new BigDecimal("147573952589676412927"), BigDecimal.valueOf(Integer.MAX_VALUE), new BigDecimal("147573952591823896574") ); failures += addTest( new BigDecimal("-147573952589676412927"), BigDecimal.valueOf(Integer.MAX_VALUE), new BigDecimal("-147573952587528929280") ); failures += addTest( new BigDecimal("79228162514264337593543950335"), BigDecimal.valueOf(999), new BigDecimal("79228162514264337593543951334") ); failures += addTest( new BigDecimal("79228162514264337593543950335"), BigDecimal.valueOf(Integer.MAX_VALUE/2), new BigDecimal("79228162514264337594617692158") ); failures += addTest( new BigDecimal("79228162514264337593543950335"), BigDecimal.valueOf(Integer.MIN_VALUE/2), new BigDecimal("79228162514264337592470208511") ); failures += addTest( new BigDecimal("-79228162514264337593543950335"), BigDecimal.valueOf(Integer.MAX_VALUE/2), new BigDecimal("-79228162514264337592470208512") ); failures += addTest( new BigDecimal("79228162514264337593543950335"), BigDecimal.valueOf(-(Integer.MIN_VALUE/2)), new BigDecimal("79228162514264337594617692159") ); failures += addTest( new BigDecimal("79228162514264337593543950335"), BigDecimal.valueOf(Long.MAX_VALUE/2), new BigDecimal("79228162518876023611971338238") ); failures += addTest( new BigDecimal("79228162514264337593543950335"), BigDecimal.valueOf(Long.MIN_VALUE/2), new BigDecimal("79228162509652651575116562431") ); failures += addTest( new BigDecimal("-79228162514264337593543950335"), BigDecimal.valueOf(Long.MAX_VALUE/2), new BigDecimal("-79228162509652651575116562432") ); failures += addTest( new BigDecimal("79228162514264337593543950335"), BigDecimal.valueOf(-(Long.MIN_VALUE/2)), new BigDecimal("79228162518876023611971338239") ); failures += addTest( new BigDecimal("-9223372036854775808"), BigDecimal.valueOf(1), new BigDecimal("-9223372036854775807") ); failures += addTest( new BigDecimal("-9223372036854775808"), BigDecimal.valueOf(Long.MAX_VALUE/2), new BigDecimal("-4611686018427387905") ); failures += addTest( new BigDecimal("9223372036854775808"), BigDecimal.valueOf(-1), new BigDecimal("9223372036854775807") ); failures += addTest( new BigDecimal("9223372036854775808"), BigDecimal.valueOf(-Long.MAX_VALUE/2), new BigDecimal("4611686018427387905") ); return failures; } private static int testRoundingFromBigInteger(BigInteger bi, int scale, MathContext mc) { int failures = 0; BigDecimal bd1 = new BigDecimal(bi,scale, mc); BigDecimal bd2 = (new BigDecimal(bi,scale)).round(mc); if (!bd1.equals(bd2)) { System.out.println("new BigDecimal(BigInteger,int,MathContext):" + "BigInteger == " + bi + "; scale == " + scale + "; result == " + bd1 + "; expected == " + bd2 ); failures++; } return failures; } private static int roundingConstructorTest() { int failures = 0; failures += testRoundingFromBigInteger( new BigInteger("85070591730234615847396907784232501249"), 7, MathContext.DECIMAL64); failures += testRoundingFromBigInteger( new BigInteger("85070591730234615847396907784232501249"), 0, MathContext.DECIMAL64); failures += testRoundingFromBigInteger( new BigInteger("85070591730234615847396907784232501249"), -7, MathContext.DECIMAL64); failures += testRoundingFromBigInteger( new BigInteger("85070591730234615847396907784232501249"), 7, MathContext.DECIMAL128); failures += testRoundingFromBigInteger( new BigInteger("85070591730234615847396907784232501249"), 177, MathContext.DECIMAL128); failures += testRoundingFromBigInteger( new BigInteger("85070591730234615847396907784232501249"), 177, MathContext.DECIMAL32); failures += testRoundingFromBigInteger( new BigInteger("85070591730234615847396907784232501249"), 177, MathContext.UNLIMITED); failures += testRoundingFromBigInteger( new BigInteger("85070591730234615847396907784232501249"), 0, MathContext.UNLIMITED); return failures; } private static int minLongConstructorTest(MathContext mc) { int failures = 0; BigDecimal bd1 = new BigDecimal(Long.MIN_VALUE,mc); BigDecimal bd2 = new BigDecimal(Long.MIN_VALUE).round(mc); if (!bd1.equals(bd2)) { System.out.println("new BigDecimal(long,MathContext):" + "long == " + Long.MIN_VALUE + "; result == " + bd1 + "; expected == " + bd2 ); failures++; } return failures; } private static int minLongConstructorTest() { int failures = 0; failures+=minLongConstructorTest(MathContext.UNLIMITED); failures+=minLongConstructorTest(MathContext.DECIMAL32); failures+=minLongConstructorTest(MathContext.DECIMAL64); failures+=minLongConstructorTest(MathContext.DECIMAL128); return failures; } public static void main(String argv[]) { int failures = 0; failures += addBoundaryTest(); failures += roundingConstructorTest(); failures += minLongConstructorTest(); if (failures > 0) { throw new RuntimeException("Incurred " + failures + " failures while testing."); } } } ¤ Dauer der Verarbeitung: 0.18 Sekunden (vorverarbeitet) ¤*© Formatika GbR, Deutschland |
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2026-03-28