Mercurial > jdk8-mips64-public > nashorn / file comparison
comparison: test/script/basic/JDK-8030197.js
test/script/basic/JDK-8030197.js
- changeset 765
- 316ee513df62
- parent 0
- b1a7da25b547
- child 962
- ac62e33a99b0
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| 764:946916efe39e | 765:316ee513df62 |
|---|---|
| 1 /* | |
| 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 */ | |
| 23 | |
| 24 | |
| 25 /** | |
| 26 * JDK-8030197: Nashorn: Object.defineProperty() can be lured to change fixed NaN property | |
| 27 * | |
| 28 * @test | |
| 29 * @run | |
| 30 */ | |
| 31 | |
| 32 function str(n) { | |
| 33 var a = new Uint8Array(new Float64Array([n]).buffer); | |
| 34 return Array.apply(null, a).reduceRight( | |
| 35 function(acc, v){ | |
| 36 return acc + (v < 10 ? "0" : "") + v.toString(16); | |
| 37 }, ""); | |
| 38 } | |
| 39 | |
| 40 var o = Object.defineProperty({}, "NaN", { value: NaN }) | |
| 41 var str1 = str(o.NaN); | |
| 42 Object.defineProperty(o, "NaN", { value: 0/0 }) | |
| 43 var str2 = str(o.NaN); | |
| 44 if (str1 != str2) { | |
| 45 fail("NaN bit pattern changed"); | |
| 46 } |
