mirror of https://github.com/tc39/test262.git
29 lines
882 B
JavaScript
29 lines
882 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-160
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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 TypeError is thrown when the
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[[Writable]] attribute of the length property is false (15.4.5.1
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step 3.g)
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---*/
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var arr = [0, 1];
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Object.defineProperty(arr, "length", {
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writable: false
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});
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assert.throws(TypeError, function() {
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Object.defineProperties(arr, {
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length: {
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value: 0
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}
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});
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});
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assert.sameValue(arr.length, 2, 'arr.length');
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assert.sameValue(arr[0], 0, 'arr[0]');
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assert.sameValue(arr[1], 1, 'arr[1]');
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