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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-immutable-prototype-exotic-objects-setprototypeof-v
description: >
Object.prototype's [[SetPrototypeOf]] returns true if value is same
info: |
9.4.7.1 [[SetPrototypeOf]] (V)
...
2. Let current be the value of the [[Prototype]] internal slot of O.
3. If SameValue(V, current), return true.
4. Return false.
19.1.3 Properties of the Object Prototype Object
The value of the [[Prototype]] internal slot of the Object prototype object is
null and the initial value of the [[Extensible]] internal slot is true.
features: [Reflect.setPrototypeOf]
---*/
var ObjProto = Object.prototype;
assert.sameValue(
Object.setPrototypeOf(ObjProto, null),
ObjProto,
"Object.setPrototypeOf(ObjProto, null) returns the Object.prototype"
);
assert(
Object.isExtensible(ObjProto),
"Object.prototype is still extensible after a setPrototypeOf operation - #1"
);
assert.sameValue(
Reflect.setPrototypeOf(ObjProto, null),
true,
"Reflect.setPrototypeOf(ObjProto, null) returns true"
);
assert(
Object.isExtensible(ObjProto),
"Object.prototype is still extensible after a setPrototypeOf operation - #2"
);
reportCompare(0, 0);
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