test262/test/built-ins/AsyncGeneratorFunction/invoked-as-function-no-argu...

20 lines
698 B
JavaScript

// Copyright (C) 2018 Valerie Young. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-asyncgeneratorfunction
description: >
When invoked via the function invocation pattern without arguments, the
AsyncGeneratorFunction intrinsic returns a valid generator with an empty body.
features: [async-iteration]
---*/
var AsyncGeneratorFunction = Object.getPrototypeOf(async function* () {}).constructor;
var g = AsyncGeneratorFunction();
var iter = g();
iter.next().then(function(result) {
assert.sameValue(result.value, undefined, 'Result `value`');
assert.sameValue(result.done, true, 'Result `done` flag');
}).then($DONE, $DONE)