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35 lines
931 B
JavaScript
35 lines
931 B
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-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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---*/
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var arrProtoLen;
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var arr = [0, 1, 2];
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assert.throws(TypeError, function() {
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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: {
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value: 1
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}
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});
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});
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var desc = Object.getOwnPropertyDescriptor(arr, "length");
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assert.sameValue(desc.value, 3, 'desc.value');
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assert(desc.writable, 'desc.writable !== true');
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assert.sameValue(desc.enumerable, false, 'desc.enumerable');
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assert.sameValue(desc.configurable, false, 'desc.configurable');
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