author | amlu |
Fri, 18 Nov 2016 14:39:03 +0800 | |
changeset 42166 | 5582c83b1156 |
parent 10423 | 2c852092a4e5 |
permissions | -rw-r--r-- |
9272 | 1 |
/* |
10423
2c852092a4e5
7082971: More performance tuning of BigDecimal and other java.math classes
darcy
parents:
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diff
changeset
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* Copyright (c) 2003, 2011, 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 7036582 |
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* @summary Some new tests for the add method and constructor with MathContext. |
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* @run main RangeTests |
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* @run main/othervm -XX:+AggressiveOpts RangeTests |
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* @author Sergey V. Kuksenko |
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*/ |
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import java.math.BigDecimal; |
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import java.math.BigInteger; |
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import java.math.MathContext; |
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public class RangeTests { |
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private static int addTest(BigDecimal arg1, BigDecimal arg2, BigDecimal expectedResult) { |
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int failures = 0; |
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BigDecimal result = arg1.add(arg2); |
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if (!result.equals(expectedResult)) { |
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System.out.println("Sum:" + |
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arg1 + " + " + |
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arg2 + " == " + |
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result + "; expected " + |
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expectedResult |
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); |
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failures++; |
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} |
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result = arg2.add(arg1); |
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if (!result.equals(expectedResult)) { |
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System.out.println("Sum:" + |
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arg2 + " + " + |
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arg1 + " == " + |
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result + "; expected " + |
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expectedResult |
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); |
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failures++; |
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} |
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return failures; |
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} |
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/* |
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* Test BigDecimal.add(BigDecimal) when values are withing different ranges: |
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* 1. within 32 bits |
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* 2. within 64 bits |
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* 3. outside 64 bits. |
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*/ |
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private static int addBoundaryTest() { |
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int failures = 0; |
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failures += addTest( |
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new BigDecimal("85070591730234615847396907784232501249"), |
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BigDecimal.valueOf(0), |
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new BigDecimal("85070591730234615847396907784232501249") ); |
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failures += addTest( |
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new BigDecimal("-85070591730234615847396907784232501249"), |
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BigDecimal.valueOf(0), |
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new BigDecimal("-85070591730234615847396907784232501249") ); |
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failures += addTest( |
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new BigDecimal("85070591730234615847396907784232501249"), |
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BigDecimal.valueOf(1), |
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new BigDecimal("85070591730234615847396907784232501250") ); |
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failures += addTest( |
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new BigDecimal("85070591730234615847396907784232501249"), |
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BigDecimal.valueOf(-1), |
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new BigDecimal("85070591730234615847396907784232501248") ); |
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failures += addTest( |
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new BigDecimal("-85070591730234615847396907784232501250"), |
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BigDecimal.valueOf(-1), |
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new BigDecimal("-85070591730234615847396907784232501251") ); |
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failures += addTest( |
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new BigDecimal("-85070591730234615847396907784232501249"), |
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BigDecimal.valueOf(1), |
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new BigDecimal("-85070591730234615847396907784232501248") ); |
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failures += addTest( |
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new BigDecimal("147573952589676412927"), |
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BigDecimal.valueOf(Integer.MAX_VALUE), |
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new BigDecimal("147573952591823896574") ); |
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failures += addTest( |
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new BigDecimal("-147573952589676412927"), |
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BigDecimal.valueOf(Integer.MAX_VALUE), |
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new BigDecimal("-147573952587528929280") ); |
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failures += addTest( |
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new BigDecimal("79228162514264337593543950335"), |
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BigDecimal.valueOf(999), |
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new BigDecimal("79228162514264337593543951334") ); |
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failures += addTest( |
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new BigDecimal("79228162514264337593543950335"), |
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BigDecimal.valueOf(Integer.MAX_VALUE/2), |
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new BigDecimal("79228162514264337594617692158") ); |
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failures += addTest( |
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new BigDecimal("79228162514264337593543950335"), |
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BigDecimal.valueOf(Integer.MIN_VALUE/2), |
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new BigDecimal("79228162514264337592470208511") ); |
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failures += addTest( |
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new BigDecimal("-79228162514264337593543950335"), |
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BigDecimal.valueOf(Integer.MAX_VALUE/2), |
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new BigDecimal("-79228162514264337592470208512") ); |
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failures += addTest( |
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new BigDecimal("79228162514264337593543950335"), |
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BigDecimal.valueOf(-(Integer.MIN_VALUE/2)), |
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new BigDecimal("79228162514264337594617692159") ); |
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failures += addTest( |
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new BigDecimal("79228162514264337593543950335"), |
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BigDecimal.valueOf(Long.MAX_VALUE/2), |
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new BigDecimal("79228162518876023611971338238") ); |
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failures += addTest( |
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new BigDecimal("79228162514264337593543950335"), |
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BigDecimal.valueOf(Long.MIN_VALUE/2), |
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new BigDecimal("79228162509652651575116562431") ); |
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failures += addTest( |
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new BigDecimal("-79228162514264337593543950335"), |
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BigDecimal.valueOf(Long.MAX_VALUE/2), |
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new BigDecimal("-79228162509652651575116562432") ); |
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failures += addTest( |
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new BigDecimal("79228162514264337593543950335"), |
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BigDecimal.valueOf(-(Long.MIN_VALUE/2)), |
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new BigDecimal("79228162518876023611971338239") ); |
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failures += addTest( |
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new BigDecimal("-9223372036854775808"), |
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BigDecimal.valueOf(1), |
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new BigDecimal("-9223372036854775807") ); |
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failures += addTest( |
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new BigDecimal("-9223372036854775808"), |
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BigDecimal.valueOf(Long.MAX_VALUE/2), |
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new BigDecimal("-4611686018427387905") ); |
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failures += addTest( |
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new BigDecimal("9223372036854775808"), |
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BigDecimal.valueOf(-1), |
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new BigDecimal("9223372036854775807") ); |
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failures += addTest( |
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new BigDecimal("9223372036854775808"), |
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BigDecimal.valueOf(-Long.MAX_VALUE/2), |
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new BigDecimal("4611686018427387905") ); |
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return failures; |
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} |
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private static int testRoundingFromBigInteger(BigInteger bi, int scale, MathContext mc) { |
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int failures = 0; |
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BigDecimal bd1 = new BigDecimal(bi,scale, mc); |
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BigDecimal bd2 = (new BigDecimal(bi,scale)).round(mc); |
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if (!bd1.equals(bd2)) { |
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System.out.println("new BigDecimal(BigInteger,int,MathContext):" + |
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"BigInteger == " + |
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bi + "; scale == " + scale + "; result == " + |
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bd1 + "; expected == " + |
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bd2 |
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); |
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failures++; |
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} |
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return failures; |
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} |
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private static int roundingConstructorTest() { |
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int failures = 0; |
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failures += testRoundingFromBigInteger( |
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new BigInteger("85070591730234615847396907784232501249"), |
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7, MathContext.DECIMAL64); |
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failures += testRoundingFromBigInteger( |
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new BigInteger("85070591730234615847396907784232501249"), |
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0, MathContext.DECIMAL64); |
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failures += testRoundingFromBigInteger( |
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new BigInteger("85070591730234615847396907784232501249"), |
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-7, MathContext.DECIMAL64); |
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failures += testRoundingFromBigInteger( |
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new BigInteger("85070591730234615847396907784232501249"), |
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7, MathContext.DECIMAL128); |
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failures += testRoundingFromBigInteger( |
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new BigInteger("85070591730234615847396907784232501249"), |
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177, MathContext.DECIMAL128); |
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failures += testRoundingFromBigInteger( |
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new BigInteger("85070591730234615847396907784232501249"), |
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177, MathContext.DECIMAL32); |
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failures += testRoundingFromBigInteger( |
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new BigInteger("85070591730234615847396907784232501249"), |
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177, MathContext.UNLIMITED); |
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failures += testRoundingFromBigInteger( |
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new BigInteger("85070591730234615847396907784232501249"), |
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0, MathContext.UNLIMITED); |
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return failures; |
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} |
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private static int minLongConstructorTest(MathContext mc) { |
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int failures = 0; |
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BigDecimal bd1 = new BigDecimal(Long.MIN_VALUE,mc); |
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BigDecimal bd2 = new BigDecimal(Long.MIN_VALUE).round(mc); |
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if (!bd1.equals(bd2)) { |
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System.out.println("new BigDecimal(long,MathContext):" + |
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"long == " + |
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Long.MIN_VALUE + "; result == " + |
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bd1 + "; expected == " + |
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bd2 |
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); |
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failures++; |
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} |
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return failures; |
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} |
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private static int minLongConstructorTest() { |
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int failures = 0; |
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failures+=minLongConstructorTest(MathContext.UNLIMITED); |
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failures+=minLongConstructorTest(MathContext.DECIMAL32); |
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failures+=minLongConstructorTest(MathContext.DECIMAL64); |
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failures+=minLongConstructorTest(MathContext.DECIMAL128); |
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return failures; |
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} |
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public static void main(String argv[]) { |
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int failures = 0; |
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failures += addBoundaryTest(); |
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failures += roundingConstructorTest(); |
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failures += minLongConstructorTest(); |
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if (failures > 0) { |
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throw new RuntimeException("Incurred " + failures + |
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" failures while testing."); |
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} |
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} |
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} |