mirror of https://github.com/tc39/test262.git
42 lines
1.4 KiB
JavaScript
42 lines
1.4 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: 15.2.3.6-4-176
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description: >
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Object.defineProperty - 'O' is an Array, 'name' 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 [[Configurable]] attribute of
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own accessor property with large index named in 'O' that overrides
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an inherited data property can stop deleting index named
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properties (15.4.5.1 step 3.l.ii)
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includes: [runTestCase.js]
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---*/
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function testcase() {
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var arrObj = [0, 1];
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try {
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Object.defineProperty(arrObj, "1", {
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get: function () {
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return 2;
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},
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configurable: false
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});
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Array.prototype[1] = 2;
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Object.defineProperty(arrObj, "length", {
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value: 1
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});
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return false;
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} catch (e) {
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return e instanceof TypeError && arrObj.length === 2 && arrObj.hasOwnProperty("1");
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} finally {
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delete Array.prototype[1];
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}
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}
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runTestCase(testcase);
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