v8/test/mjsunit/harmony/symbol-async-iterator.js

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// Copyright 2017 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: --harmony-async-iteration
assertTrue(Symbol.hasOwnProperty('asyncIterator'));
assertEquals('symbol', typeof Symbol.asyncIterator);
assertInstanceof(Object(Symbol.asyncIterator), Symbol);
let desc = Object.getOwnPropertyDescriptor(Symbol, 'asyncIterator');
assertFalse(desc.writable);
assertFalse(desc.enumerable);
assertFalse(desc.configurable);