tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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invoke-then-get-error-reject.js (1086B)

      1 // |reftest| async
      2 // Copyright (C) 2019 Leo Balter. 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.allsettled
      8 info: |
      9  6. Let result be PerformPromiseAllSettled(iteratorRecord, C, promiseCapability).
     10  7. 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: PerformPromiseAllSettled
     15 
     16  z. Perform ? Invoke(nextPromise, "then", « resolveElement, rejectElement »).
     17 flags: [async]
     18 features: [Promise.allSettled]
     19 ---*/
     20 
     21 var promise = new Promise(function() {});
     22 var error = new Test262Error();
     23 
     24 Object.defineProperty(promise, 'then', {
     25  get() {
     26    throw error;
     27  }
     28 });
     29 
     30 Promise.allSettled([promise]).then(function() {
     31  throw new Test262Error('The promise should be rejected');
     32 }, function(reason) {
     33  assert.sameValue(reason, error);
     34 }).then($DONE, $DONE);