47 lines
1.6 KiB
JavaScript
47 lines
1.6 KiB
JavaScript
/*
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* Copyright (c) 2014, 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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* JDK-8030197: Nashorn: Object.defineProperty() can be lured to change fixed NaN property
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*
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* @test
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* @run
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*/
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function str(n) {
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var a = new Uint8Array(new Float64Array([n]).buffer);
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return Array.apply(null, a).reduceRight(
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function(acc, v){
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return acc + (v < 10 ? "0" : "") + v.toString(16);
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}, "");
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}
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var o = Object.defineProperty({}, "NaN", { value: NaN })
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var str1 = str(o.NaN);
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Object.defineProperty(o, "NaN", { value: 0/0 })
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var str2 = str(o.NaN);
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if (str1 != str2) {
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fail("NaN bit pattern changed");
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}
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