mirror of https://github.com/tc39/test262.git
38 lines
1.3 KiB
JavaScript
38 lines
1.3 KiB
JavaScript
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// Copyright (c) 2012 Ecma International. All rights reserved.
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// Ecma International makes this code available under the terms and conditions set
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// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
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// "Use Terms"). Any redistribution of this code must retain the above
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// copyright and this notice and otherwise comply with the Use Terms.
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/*---
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es5id: 15.2.3.7-6-a-177
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description: >
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Object.defineProperties - 'O' is an Array, 'P' is the length
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property of 'O', the [[Value]] field of 'desc' is less than value
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of the length property, test the [[Writable]] attribute of the
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length property is set to false at last when the [[Writable]]
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field of 'desc' is false and 'O' doesn't contain non-configurable
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large index named property (15.4.5.1 step 3.m)
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includes: [runTestCase.js]
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---*/
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function testcase() {
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var arr = [0, 1];
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try {
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Object.defineProperties(arr, {
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length: {
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value: 0,
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writable: false
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}
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});
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arr.length = 10; //try to overwrite length value of arr
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return !arr.hasOwnProperty("1") && arr.length === 0 && !arr.hasOwnProperty("0");
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} catch (e) {
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return false;
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}
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}
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runTestCase(testcase);
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