mirror of https://github.com/tc39/test262.git
42 lines
1.3 KiB
JavaScript
42 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-113
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description: >
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Object.defineProperties - 'O' is an Array, test the length
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property of 'O' is own data property that overrides an inherited
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data property (15.4.5.1 step 1)
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includes: [runTestCase.js]
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---*/
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function testcase() {
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var arrProtoLen;
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var arr = [0, 1, 2];
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try {
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arrProtoLen = Array.prototype.length;
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Array.prototype.length = 0;
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Object.defineProperty(arr, "2", {
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configurable: false
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});
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Object.defineProperties(arr, {
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length: { value: 1 }
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});
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return false;
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} catch (e) {
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var desc = Object.getOwnPropertyDescriptor(arr, "length");
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return e instanceof TypeError && desc.value === 3 &&
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desc.writable && !desc.enumerable && !desc.configurable;
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} finally {
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Array.prototype.length = arrProtoLen;
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}
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}
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runTestCase(testcase);
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