invoke-then-get-error-reject.js (1082B)
1 // |reftest| async 2 // Copyright (C) 2019 Leo Balter, 2020 Rick Waldron. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 /*--- 5 description: > 6 Error thrown when accessing the instance's `then` method (rejecting Promise) 7 esid: sec-promise.any 8 info: | 9 5. Let result be PerformPromiseAny(iteratorRecord, C, promiseCapability). 10 6. If result is an abrupt completion, then 11 a. If iteratorRecord.[[Done]] is false, set result to IteratorClose(iteratorRecord, result). 12 b. IfAbruptRejectPromise(result, promiseCapability). 13 14 Runtime Semantics: PerformPromiseAny 15 16 r. Perform ? Invoke(nextPromise, "then", « resultCapability.[[Resolve]], rejectElement »). 17 18 flags: [async] 19 features: [Promise.any, arrow-function] 20 ---*/ 21 let error = new Test262Error(); 22 let promise = Promise.resolve(); 23 24 Object.defineProperty(promise, 'then', { 25 get() { 26 throw error; 27 } 28 }); 29 30 Promise.any([promise]).then(() => { 31 $DONE('The promise should be rejected, but was resolved'); 32 }, (reason) => { 33 assert.sameValue(reason, error); 34 }).then($DONE, $DONE);