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26 lines
847 B
JavaScript
26 lines
847 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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info: |
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Step 4 of defineProperty calls the [[DefineOwnProperty]] internal method
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of O passing 'true' for the Throw flag. In this case, step 3 of
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[[DefineOwnProperty]] requires that it throw a TypeError exception when
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current is undefined and extensible is false. The value of desc does not
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matter.
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es5id: 15.2.3.6-4-1
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description: >
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Object.defineProperty throws TypeError when adding properties to
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non-extensible objects(8.12.9 step 3)
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---*/
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var o = {};
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Object.preventExtensions(o);
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assert.throws(TypeError, function() {
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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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});
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assert.sameValue(o.hasOwnProperty("foo"), false, 'o.hasOwnProperty("foo")');
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