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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: >
Explicit iterator closing in response to error from `Promise.resolve`
esid: sec-promise.race
es6id: 25.4.4.3
info: |
[...]
11. Let result be PerformPromiseRace(iteratorRecord, promiseCapability, C).
12. If result is an abrupt completion, then
a. If iteratorRecord.[[done]] is false, let result be
IteratorClose(iterator,result).
b. IfAbruptRejectPromise(result, promiseCapability).
25.4.4.3.1 Runtime Semantics: PerformPromiseRace
1. Repeat
[...]
h. Let nextPromise be Invoke(C, "resolve", «nextValue»).
i. ReturnIfAbrupt(nextPromise).
features: [Symbol.iterator]
---*/
var iterDoneSpy = {};
var returnCount = 0;
iterDoneSpy[Symbol.iterator] = function() {
return {
next: function() {
return {
value: null,
done: false
};
},
return: function() {
returnCount += 1;
return {};
}
};
};
Promise.resolve = function() {
throw err;
};
Promise.race(iterDoneSpy);
assert.sameValue(returnCount, 1);
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