63 lines
2.3 KiB
Java
63 lines
2.3 KiB
Java
/*
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* Copyright (c) 2021, 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 8262744
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* @summary BigDecimal does not always display formatting correctly because
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* rounding is done after formatting check. Fix moves rounding to before the
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* range-based formatting check for %g formatting flag.
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* @run testng BigDecimalRounding
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*/
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import org.testng.annotations.Test;
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import java.math.BigDecimal;
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import static org.testng.Assert.*;
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@Test
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public class BigDecimalRounding {
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public static void testBigDecimalRounding() {
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var res1 = String.format("%g", 0.00009999999999999995);
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var res2 = String.format("%g", 0.00009999999f);
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var res3 = String.format("%g", new BigDecimal(0.0001));
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var res4 = String.format("%g", new BigDecimal("0.00009999999999999999995"));
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assertEquals(res1, res2);
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assertEquals(res2, res3);
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assertEquals(res3, res4);
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var res5 = String.format("%.9g", 999999.999999432168754e+3);
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var res6 = String.format("%.9g", 999999999.999432168754f);
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var res7 = String.format("%.9g", new BigDecimal("999999.999999432168754e+3")); // !!
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var res8 = String.format("%.9g", new BigDecimal("1000000000")); // !!
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assertEquals(res5, res6);
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assertEquals(res6, res7);
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assertEquals(res7, res8);
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}
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}
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