test262/test/built-ins/Promise/race/same-reject-function.js

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JavaScript

// Copyright (C) 2015 André Bargull. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 25.4.4.3.1
description: >
Each Promise.race element is called with the same reject function.
info: >
Runtime Semantics: PerformPromiseRace ( iteratorRecord, promiseCapability, C )
...
j. Let result be Invoke(nextPromise, "then", «promiseCapability.[[Resolve]], promiseCapability.[[Reject]]»).
...
---*/
function rejectFunction() { }
function Constructor(executor) {
executor($ERROR, rejectFunction);
}
Constructor.resolve = function(v) { return v; };
var callCount1 = 0, callCount2 = 0;
var p1 = {
then: function(onFulfilled, onRejected) {
callCount1 += 1;
assert.sameValue(onRejected, rejectFunction, "p1.then");
}
};
var p2 = {
then: function(onFulfilled, onRejected) {
callCount2 += 1;
assert.sameValue(onRejected, rejectFunction, "p2.then");
}
};
Promise.race.call(Constructor, [p1, p2]);
assert.sameValue(callCount1, 1, "p1.then call count");
assert.sameValue(callCount2, 1, "p2.then call count");