// |reftest| async // Copyright (C) 2020 Rick Waldron. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- description: > Invocation of the constructor's `resolve` method for iterable with promise values esid: sec-promise.all info: | Let result be PerformPromiseAll(iteratorRecord, C, promiseCapability). Runtime Semantics: PerformPromiseAll Repeat ... Let nextPromise be ? Call(promiseResolve, constructor, « nextValue »). flags: [async] features: [class, arrow-function] ---*/ class Custom extends Promise {} let values = [1, 1, 1]; let cresolveCallCount = 0; let presolveCallCount = 0; let boundCustomResolve = Custom.resolve.bind(Custom); let boundPromiseResolve = Promise.resolve.bind(Promise); Custom.resolve = function(...args) { cresolveCallCount += 1; return boundCustomResolve(...args); }; Promise.resolve = function(...args) { presolveCallCount += 1; return boundPromiseResolve(...args); }; Promise.all.call(Custom, values) .then(() => { assert.sameValue(presolveCallCount, 0, '`Promise.resolve` is never invoked'); assert.sameValue(cresolveCallCount, 3, '`Custom.resolve` invoked once for every iterated promise'); }).then($DONE, $DONE);