135 lines
5.2 KiB
Java
135 lines
5.2 KiB
Java
/*
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* Copyright (c) 2003, 2016, 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 4018937
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* @summary Confirm that DecimalFormat.parse() parses BigDecimal and BigInteger as expected.
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*/
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import java.math.*;
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import java.text.*;
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import java.util.*;
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public class BigDecimalCompatibilityTest {
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static boolean err = false;
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static final String[] input_data = {
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"0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
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"1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
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};
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static final String[] exponents = {
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"E-100", "E100", "E-900", "E900", ""
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};
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static final int[] multipliers = {
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-1, 1, -100, 100, -9999, 9999
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};
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public static void main(String[] args) throws Exception {
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Locale loc = Locale.getDefault();
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Locale.setDefault(Locale.US);
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testBigDecimal();
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testBigInteger();
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Locale.setDefault(loc);
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if (err) {
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throw new RuntimeException("Error: Unexpected value");
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}
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}
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static private void testBigDecimal() {
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DecimalFormat df = new DecimalFormat();
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df.setParseBigDecimal(true);
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df.setMaximumFractionDigits(Integer.MAX_VALUE);
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for (int i = 0; i < input_data.length; i++) {
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for (int j = 0; j < input_data.length; j++) {
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for (int k = 0; k < input_data.length; k++) {
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for (int l = 0; l < input_data.length; l++) {
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for (int m = 0; m < exponents.length; m++) {
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String s = input_data[i] + input_data[j] + '.' +
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input_data[k] + input_data[l] +
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exponents[m];
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for (int n = 0; n < multipliers.length; n++) {
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test(df, s, multipliers[n]);
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test(df, '-'+s, multipliers[n]);
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}
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}
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}
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}
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}
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}
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}
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static private void testBigInteger() {
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DecimalFormat df = new DecimalFormat();
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df.setParseBigDecimal(true);
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df.setMaximumFractionDigits(Integer.MAX_VALUE);
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for (int i = 0; i < input_data.length; i++) {
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for (int j = 0; j < input_data.length; j++) {
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String s = input_data[i] + input_data[j];
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for (int k = 0; k < multipliers.length; k++) {
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test(df, s, multipliers[k]);
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test(df, '-'+s, multipliers[k]);
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}
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}
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}
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}
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static void test(DecimalFormat df, String s, int multiplier) {
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df.setMultiplier(multiplier);
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Number num = null;
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try {
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num = df.parse(s);
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}
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catch (ParseException e) {
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err = true;
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System.err.println("Failed: Exception occurred: " + e.getMessage());
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return;
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}
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BigDecimal bd = new BigDecimal(s);
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try {
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bd = bd.divide(new BigDecimal(multiplier));
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}
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catch (ArithmeticException e) {
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bd = bd.divide(new BigDecimal(multiplier), RoundingMode.HALF_EVEN);
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}
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check(num, bd, multiplier);
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}
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static void check(Number got, BigDecimal expected, int multiplier) {
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if (!got.equals(expected)) {
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err = true;
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System.err.println("Failed: got:" + got +
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", expected: " + expected +
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", multiplier=" + multiplier);
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}
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}
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}
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