1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
// Copyright (C) 2019 Leo Balter. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: >
Gets constructor's `resolve` method once from zero to many invocations.
esid: sec-promise.allsettled
info: |
6. Let result be PerformPromiseAllSettled(iteratorRecord, C, promiseCapability).
Runtime Semantics: PerformPromiseAllSettled
6. Let promiseResolve be ? Get(constructor, `"resolve"`).
7. 1. If IsCallable(promiseResolve) is false, throw a TypeError exception.
8. Repeat
...
i. Let nextPromise be ? Call(promiseResolve, constructor, « nextValue »).
features: [Promise.allSettled]
---*/
var p1 = Promise.resolve(1);
var p2 = Promise.resolve(1);
var p3 = Promise.reject(1);
var p4 = Promise.resolve(1);
var resolve = Promise.resolve;
var getCount = 0;
var callCount = 0;
Object.defineProperty(Promise, 'resolve', {
configurable: true,
get() {
getCount += 1;
return function() {
callCount += 1;
return resolve.apply(Promise, arguments);
};
}
});
Promise.allSettled([p1, p2, p3, p4]);
assert.sameValue(
getCount, 1, 'Got `resolve` only once for each iterated value'
);
assert.sameValue(
callCount, 4, '`resolve` invoked once for each iterated value'
);
reportCompare(0, 0);
|
