112 lines
3.7 KiB
Java
112 lines
3.7 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 4944439
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* @summary Confirm that numbers where all digits after the decimal separator are 0
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* and which are between Long.MIN_VALUE and Long.MAX_VALUE are returned as Long(not double).
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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.text.DecimalFormat;
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import java.util.Locale;
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public class Bug4944439 {
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static boolean err = false;
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static DecimalFormat df;
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public static void main(String[] args) throws Exception {
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Locale defaultLoc = Locale.getDefault();
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Locale.setDefault(Locale.US);
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df = new DecimalFormat();
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String s = "-9223372036854775809"; // Long.MIN_VALUE-1
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check_Double(s);
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test(Long.MIN_VALUE, Long.MIN_VALUE+10);
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test(-10, 10);
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test(Long.MAX_VALUE-10, Long.MAX_VALUE-1);
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s = "9223372036854775807.00"; // Long.MAX_VALUE
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check_Long(s);
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s = "9223372036854775808"; // Long.MAX_VALUE+1
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check_Double(s);
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s = "-0.0";
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check_Double(s);
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s = "0.0";
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check_Long(s);
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Locale.setDefault(defaultLoc);
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if (err) {
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throw new RuntimeException("Wrong parsing with DecimalFormat");
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}
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}
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private static void test(long from, long to) throws Exception {
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for (long l = from; l <= to; l++) {
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check_Long(Long.toString(l) + ".00");
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}
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}
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private static void check_Long(String s) throws Exception {
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Number number = df.parse(s);
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if (!(number instanceof Long)) {
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err = true;
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System.err.println("Failed: DecimalFormat.parse(\"" + s +
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"\") should return a Long, but returned a " +
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number.getClass().getName());
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}
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int index = s.indexOf('.');
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Long l = Long.valueOf(s.substring(0, index));
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if (!l.equals(number)) {
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err = true;
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System.err.println("Failed: DecimalFormat.parse(" + s +
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") should return a Long(" + l + "), but returned " + number);
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}
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}
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private static void check_Double(String s) throws Exception {
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Number number = df.parse(s);
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if (!(number instanceof Double)) {
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err = true;
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System.err.println("Failed: DecimalFormat.parse(\"" + s +
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"\") should return a Double, but returned a " +
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number.getClass().getName());
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}
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Double d = Double.valueOf(s);
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if (!d.equals(number)) {
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err = true;
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System.err.println("Failed: DecimalFormat.parse(" + s +
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") should return a Double(" + d + "), but returned " + number);
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}
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}
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}
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