mirror of https://github.com/tc39/test262.git
53 lines
1.2 KiB
JavaScript
53 lines
1.2 KiB
JavaScript
// Copyright (C) 2015 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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description: >
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Invocation of the constructor's `resolve` method
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es6id: 25.4.4.1
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info: >
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11. Let result be PerformPromiseAll(iteratorRecord, C, promiseCapability).
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[...]
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25.4.4.1.1 Runtime Semantics: PerformPromiseAll
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[...]
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6. Repeat
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[...]
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i. Let nextPromise be Invoke(constructor, "resolve", «nextValue»).
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---*/
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var p1 = new Promise(function() {});
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var p2 = new Promise(function() {});
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var p3 = new Promise(function() {});
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var resolve = Promise.resolve;
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var callCount = 0;
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var current = p1;
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var next = p2;
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var afterNext = p3;
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Promise.resolve = function(nextValue) {
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assert.sameValue(
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nextValue, current, '`resolve` invoked with next iterated value'
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);
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assert.sameValue(
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arguments.length, 1, '`resolve` invoked with a single argument'
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);
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assert.sameValue(this, Promise, '`this` value is the constructor');
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current = next;
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next = afterNext;
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afterNext = null;
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callCount += 1;
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return resolve.apply(Promise, arguments);
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};
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Promise.all([p1, p2, p3]);
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assert.sameValue(
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callCount, 3, '`resolve` invoked once for each iterated value'
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);
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