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// 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 with a single argument,
the AsyncGeneratorFunction intrinsic creates a valid async generator whose body is the
first argument evaluated as source code.
features: [async-iteration]
flags: [async]
---*/
var AsyncGeneratorFunction = Object.getPrototypeOf(async function* () {}).constructor;
var g = AsyncGeneratorFunction('yield 1;');
var iter = g();
var result;
iter.next().then(function(result) {
assert.sameValue(result.value, 1, 'First result `value`');
assert.sameValue(result.done, false, 'First result `done` flag');
}).then(undefined, $DONE)
iter.next().then(function(result) {
assert.sameValue(result.value, undefined, 'Final result `value`');
assert.sameValue(result.done, true, 'Final result `done` flag');
}).then($DONE, $DONE)
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