// Copyright (C) 2017 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
desc: >
    When a `yield` token appears within the Initializer of an
    AssignmentElement within a generator function body, it behaves as a
    YieldExpression.
template: async-generator
es6id: 12.14.5.4
features: [generators]
---*/

//- setup
let value = [];
let x;
//- elems
[ x = yield ]
//- vals
[]
//- teardown
iter.next().then(result => {
  assert.sameValue(result.value, undefined);
  assert.sameValue(result.done, false);
  assert.sameValue(x, undefined);

  iter.next(4).then(result => {
    assert.sameValue(result.value, undefined);
    assert.sameValue(result.done, true);
    assert.sameValue(x, 4);
  }, $DONE).then($DONE, $DONE);
}, $DONE).catch($DONE);