aoqi@0: /*
aoqi@0:  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
attila@962:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
attila@962:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
attila@962:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
attila@962:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: 
aoqi@0: /**
aoqi@0:  * JDK-8030197: Nashorn: Object.defineProperty() can be lured to change fixed NaN property
aoqi@0:  *
aoqi@0:  * @test
aoqi@0:  * @run
aoqi@0:  */
aoqi@0: 
aoqi@0: function str(n) {
aoqi@0:     var a = new Uint8Array(new Float64Array([n]).buffer);
aoqi@0:     return Array.apply(null, a).reduceRight(
aoqi@0:         function(acc, v){
aoqi@0:             return acc + (v < 10 ? "0" : "") + v.toString(16);
aoqi@0:         }, "");
aoqi@0: }
aoqi@0: 
aoqi@0: var o = Object.defineProperty({}, "NaN", { value: NaN })
aoqi@0: var str1 = str(o.NaN);
aoqi@0: Object.defineProperty(o, "NaN", { value: 0/0 })
aoqi@0: var str2 = str(o.NaN);
aoqi@0: if (str1 != str2) {
aoqi@0:     fail("NaN bit pattern changed");
aoqi@0: }