22 lines
730 B
JavaScript
22 lines
730 B
JavaScript
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// Copyright 2018 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax --no-stress-opt
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var set = new Set([1,2,3]);
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assertTrue(%SetIteratorProtector());
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assertTrue(%MapIteratorProtector());
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// This changes %SetPrototype%. No more tests should be run after this in the
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// same instance.
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set.__proto__[Symbol.iterator] = () => ({next: () => ({done: true})});
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assertFalse(%SetIteratorProtector());
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assertTrue(%MapIteratorProtector());
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assertEquals([], [...set]);
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assertEquals([[1,1],[2,2],[3,3]], [...set.entries()]);
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assertEquals([1,2,3], [...set.keys()]);
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assertEquals([1,2,3], [...set.values()]);
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