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// |reftest| async
// Copyright 2018 Valerie Young. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-asyncgenerator-prototype-throw
description: throw() results in rejected promise when called on completed iterator
info: |
AsyncGenerator.prototype.throw ( exception )
1. Let generator be the this value.
2. Let completion be Completion{[[Type]]: throw, [[Value]]: exception, [[Target]]: empty}.
3. Return ! AsyncGeneratorEnqueue(generator, completion).
AsyncGeneratorEnqueue ( generator, completion )
...
8. If state is not "executing", then
a. Perform ! AsyncGeneratorResumeNext(generator).
...
AsyncGeneratorResumeNext:
If completion.[[Type]] is throw, and generator.[[AsyncGeneratorState]] is
"completed", the resulting promise is rejected with the error.
flags: [async]
features: [async-iteration]
---*/
var throwError = new Error('Catch me');
var g = async function*() {};
var iter = g();
iter.next().then(function(result) {
assert.sameValue(result.value, undefined);
assert.sameValue(result.done, true);
iter.throw(throwError).then($DONE, function(err) {
assert.sameValue(err, throwError)
}).then($DONE, $DONE);
}).catch($DONE);
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