mirror of https://github.com/tc39/test262.git
29 lines
953 B
JavaScript
29 lines
953 B
JavaScript
// Copyright (C) 2013 the V8 project authors. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
/*---
|
|
es6id: 25.2
|
|
description: >
|
|
When the `next` method of a generator-produced iterable is invoked without
|
|
an argument, the corresponding `yield` expression should be evaluated as
|
|
`undefined`.
|
|
---*/
|
|
|
|
function* g() { actual = yield; }
|
|
var expected = {};
|
|
var iter = g();
|
|
var actual, result;
|
|
|
|
result = iter.next();
|
|
assert.sameValue(result.value, undefined, 'First result `value`');
|
|
assert.sameValue(result.done, false, 'First result `done` flag');
|
|
assert.sameValue(
|
|
actual, undefined, 'Value of `yield` expression (prior to continuation)'
|
|
);
|
|
|
|
result = iter.next(expected);
|
|
assert.sameValue(result.value, undefined, 'Second result `value`');
|
|
assert.sameValue(result.done, true, 'Second result `done` flag');
|
|
assert.sameValue(
|
|
actual, expected, 'Value of `yield` expression (following continuation)'
|
|
);
|