test262/test/language/arguments-object/mapped/Symbol.iterator/next-truncation-before-exha...

24 lines
656 B
JavaScript

// Copyright (C) Copyright 2014 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.4.4.7 S22
description: >
Prior to being exhausted, iterators for mapped arguments exotic objects
should honor argument removal.
flags: [noStrict]
---*/
(function(a, b, c) {
var iterator = arguments[Symbol.iterator]();
var result;
iterator.next();
iterator.next();
arguments.length = 2;
result = iterator.next();
assert.sameValue(result.value, undefined, 'Exhausted result `value`');
assert.sameValue(result.done, true, 'Exhausted result `done` flag');
}(2, 1, 3));