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28 lines
1.0 KiB
JavaScript
28 lines
1.0 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 data 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: 15.2.3.6-4-2
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description: >
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Object.defineProperty sets missing attributes to their default
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values (data properties)(8.12.9 step 4.a.i)
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---*/
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var o = {};
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var desc = {
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value: 1
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};
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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(propDesc.value, 1, 'propDesc.value'); // this is the value that was set
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assert.sameValue(propDesc.writable, false, 'propDesc.writable'); // false 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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