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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: Resolving with a resolved Promise instance whose `then` method has been overridden from a fulfilled promise
es6id: 25.4.5.3
info: |
[...]
7. Return PerformPromiseThen(promise, onFulfilled, onRejected,
resultCapability).
25.4.5.3.1 PerformPromiseThen
[...]
8. Else if the value of promise's [[PromiseState]] internal slot is
"fulfilled",
a. Let value be the value of promise's [[PromiseResult]] internal slot.
b. EnqueueJob("PromiseJobs", PromiseReactionJob, «fulfillReaction,
value»).
25.4.2.1 PromiseReactionJob
[...]
8. Let status be Call(promiseCapability.[[Resolve]], undefined,
«handlerResult.[[value]]»).
[...]
25.4.1.3.2 Promise Resolve Functions
[...]
8. Let then be Get(resolution, "then").
9. If then is an abrupt completion, then
[...]
10. Let thenAction be then.[[value]].
11. If IsCallable(thenAction) is false, then
[...]
12. Perform EnqueueJob ("PromiseJobs", PromiseResolveThenableJob,
«promise, resolution, thenAction»)
flags: [async]
---*/
var value = {};
var thenable = new Promise(function(resolve) { resolve(); });
var p1 = new Promise(function(resolve) { resolve(); });
var p2;
thenable.then = function(resolve) {
resolve(value);
};
p2 = p1.then(function() {
return thenable;
});
p2.then(function(x) {
if (x !== value) {
$DONE('The promise should be fulfilled with the resolution value of the provided promise.');
return;
}
$DONE();
}, function() {
$DONE('The promise should not be rejected.');
});
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