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28 lines
1.2 KiB
JavaScript
28 lines
1.2 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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info: >
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Step 4 of defineProperty calls the [[DefineOwnProperty]] internal method
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of O to define the property. For newly defined accessor properties, attributes
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missing from desc should have values set to the defaults from 8.6.1.
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es5id: 15.2.3.6-4-3
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description: >
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Object.defineProperty sets missing attributes to their default
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values (accessor)(8.12.9 step 4.b.i)
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---*/
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var o = {};
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var getter = function () { return 1; };
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var desc = { get: getter };
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Object.defineProperty(o, "foo", desc);
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var propDesc = Object.getOwnPropertyDescriptor(o, "foo");
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assert.sameValue(typeof(propDesc.get), "function", 'typeof(propDesc.get)');
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assert.sameValue(propDesc.get, getter, 'propDesc.get'); // the getter must be the function that was provided
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assert.sameValue(propDesc.set, undefined, 'propDesc.set'); // undefined by default
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assert.sameValue(propDesc.enumerable, false, 'propDesc.enumerable'); // false by default
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assert.sameValue(propDesc.configurable, false, 'propDesc.configurable'); // false by default
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