| // Copyright (C) 2013 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-%arrayiteratorprototype%.next |
| description: > |
| When an item is added to the array after the iterator is created but |
| before the iterator is "done" (as defined by 22.1.5.2.1), the new item |
| should be accessible via iteration. When an item is added to the array |
| after the iterator is "done", the new item should not be accessible via |
| iteration. |
| es6id: 22.1.3.30 |
| features: [Symbol.iterator] |
| ---*/ |
| |
| var array = []; |
| var iterator = array[Symbol.iterator](); |
| var result; |
| |
| array.push('a'); |
| |
| result = iterator.next(); |
| assert.sameValue(result.done, false, 'First result `done` flag'); |
| assert.sameValue(result.value, 'a', 'First result `value`'); |
| |
| result = iterator.next(); |
| assert.sameValue(result.done, true, 'Exhausted result `done` flag'); |
| assert.sameValue(result.value, undefined, 'Exhausted result `value`'); |
| |
| array.push('b'); |
| |
| result = iterator.next(); |
| assert.sameValue(result.done, true, 'Exhausted result `done` flag (after push)'); |
| assert.sameValue(result.value, undefined, 'Exhausted result `value (after push)'); |