v8/test/mjsunit/get-own-property-descriptor-non-objects.js

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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
assertThrows(function() {
Object.getOwnPropertyDescriptor(null, 'x');
}, TypeError);
assertThrows(function() {
Object.getOwnPropertyDescriptor(undefined, 'x');
}, TypeError);
assertEquals({
configurable: false,
enumerable: false,
value: 3,
writable: false,
}, Object.getOwnPropertyDescriptor('abc', 'length'));
assertEquals({
configurable: false,
enumerable: true,
value: 'a',
writable: false,
}, Object.getOwnPropertyDescriptor('abc', 0));
assertSame(undefined, Object.getOwnPropertyDescriptor(42, 'x'));
assertSame(undefined, Object.getOwnPropertyDescriptor(true, 'x'));
assertSame(undefined, Object.getOwnPropertyDescriptor(false, 'x'));
assertSame(undefined, Object.getOwnPropertyDescriptor(Symbol(), 'x'));