mirror of https://github.com/tc39/test262.git
22 lines
730 B
JavaScript
22 lines
730 B
JavaScript
// Copyright 2018 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.
|
|
|
|
// Flags: --allow-natives-syntax --no-stress-opt
|
|
|
|
var set = new Set([1,2,3]);
|
|
|
|
assertTrue(%SetIteratorProtector());
|
|
assertTrue(%MapIteratorProtector());
|
|
|
|
// This changes %SetPrototype%. No more tests should be run after this in the
|
|
// same instance.
|
|
set.__proto__[Symbol.iterator] = () => ({next: () => ({done: true})});
|
|
|
|
assertFalse(%SetIteratorProtector());
|
|
assertTrue(%MapIteratorProtector());
|
|
assertEquals([], [...set]);
|
|
assertEquals([[1,1],[2,2],[3,3]], [...set.entries()]);
|
|
assertEquals([1,2,3], [...set.keys()]);
|
|
assertEquals([1,2,3], [...set.values()]);
|