133 lines
5.6 KiB
Java
133 lines
5.6 KiB
Java
/*
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* Copyright (c) 2004, 2023, 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 4984872 8318915
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* @summary Basic tests of toPlainString method
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* @run main ToPlainStringTests
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* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+EliminateAutoBox -XX:AutoBoxCacheMax=20000 ToPlainStringTests
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* @author Joseph D. Darcy
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*/
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import java.math.*;
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public class ToPlainStringTests {
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public static void main(String argv[]) {
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String [][] testCases = {
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{"0", "0"},
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{"1", "1"},
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{"10", "10"},
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{"2e1", "20"},
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{"3e2", "300"},
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{"4e3", "4000"},
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{"5e4", "50000"},
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{"6e5", "600000"},
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{"7e6", "7000000"},
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{"8e7", "80000000"},
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{"9e8", "900000000"},
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{"1e9", "1000000000"},
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{".0", "0.0"},
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{".1", "0.1"},
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{".10", "0.10"},
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{"1e-1", "0.1"},
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{"1e-1", "0.1"},
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{"2e-2", "0.02"},
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{"3e-3", "0.003"},
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{"4e-4", "0.0004"},
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{"5e-5", "0.00005"},
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{"6e-6", "0.000006"},
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{"7e-7", "0.0000007"},
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{"8e-8", "0.00000008"},
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{"9e-9", "0.000000009"},
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{"9000e-12", "0.000000009000"},
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{"9000e-22", "0.0000000000000000009000"},
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{"12345678901234567890", "12345678901234567890"},
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{"12345678901234567890e22", "123456789012345678900000000000000000000000"},
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{"12345678901234567890e-22", "0.0012345678901234567890"},
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{"12345e-1", "1234.5"},
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{"12345e-2", "123.45"},
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{"12345e-3", "12.345"},
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{"12345e-4", "1.2345"},
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};
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int errors = 0;
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for(String[] testCase: testCases) {
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BigDecimal bd = new BigDecimal(testCase[0]);
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String s;
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if (!(s=bd.toPlainString()).equals(testCase[1])) {
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errors++;
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System.err.println("Unexpected plain result ``" +
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s + "'' from BigDecimal " +
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bd);
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}
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bd = new BigDecimal("-"+testCase[0]);
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if (bd.signum()!=0 && !(s=(bd.toPlainString())).equals("-"+testCase[1])) {
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errors++;
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System.err.println("Unexpected plain result ``" +
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s + "'' from BigDecimal " +
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bd);
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}
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}
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String[] failingCases = {
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"1E-" + (Integer.MAX_VALUE - 0), // MAX_VALUE + 2 chars
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"1E-" + (Integer.MAX_VALUE - 1), // MAX_VALUE + 1 chars
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"-1E-" + (Integer.MAX_VALUE - 0), // MAX_VALUE + 3 chars
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"-1E-" + (Integer.MAX_VALUE - 1), // MAX_VALUE + 2 chars
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"-1E-" + (Integer.MAX_VALUE - 2), // MAX_VALUE + 1 chars
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"123456789E-" + (Integer.MAX_VALUE - 0), // MAX_VALUE + 2 chars
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"123456789E-" + (Integer.MAX_VALUE - 1), // MAX_VALUE + 1 chars
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"-123456789E-" + (Integer.MAX_VALUE - 0), // MAX_VALUE + 3 chars
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"-123456789E-" + (Integer.MAX_VALUE - 1), // MAX_VALUE + 2 chars
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"-123456789E-" + (Integer.MAX_VALUE - 2), // MAX_VALUE + 1 chars
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"1E" + Integer.MAX_VALUE, // MAX_VALUE + 1 chars
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"123456789E" + Integer.MAX_VALUE, // MAX_VALUE + 9 chars
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"-1E" + Integer.MAX_VALUE, // MAX_VALUE + 2 chars
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"-123456789E" + Integer.MAX_VALUE, // MAX_VALUE + 10 chars
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};
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/* We expect pre-emptive OutOfMemoryErrors, nothing else */
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for (String failingCase : failingCases) {
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try {
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new BigDecimal(failingCase).toPlainString();
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} catch (OutOfMemoryError expected) {
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continue;
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} catch (Throwable ignored) {
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}
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++errors;
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}
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if(errors > 0)
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throw new RuntimeException(errors + " errors during run.");
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}
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}
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