mirror of https://github.com/tc39/test262.git
39 lines
1.1 KiB
JavaScript
39 lines
1.1 KiB
JavaScript
// Copyright (c) 2012 Ecma International. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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es5id: 15.2.3.7-6-a-188
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description: >
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Object.defineProperties - 'O' is an Array, 'P' is an array index
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named property, 'P' is own data property that overrides an
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inherited data property (15.4.5.1 step 4.c)
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includes: [runTestCase.js]
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---*/
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function testcase() {
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try {
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Object.defineProperty(Array.prototype, "0", {
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value: 11,
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configurable: true
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});
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var arr = [];
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Object.defineProperty(arr, "0", {
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value: 12,
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configurable: false
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});
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Object.defineProperties(arr, {
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"0": {
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configurable: true
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}
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});
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return false;
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} catch (e) {
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return e instanceof TypeError && arr[0] === 12 && Array.prototype[0] === 11;
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} finally {
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delete Array.prototype[0];
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}
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}
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runTestCase(testcase);
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