tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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invoke-then-error-reject.js (1163B)

      1 // |reftest| async
      2 // Copyright (C) 2015 the V8 project authors. All rights reserved.
      3 // This code is governed by the BSD license found in the LICENSE file.
      4 
      5 /*---
      6 description: >
      7  Error thrown when invoking the instance's `then` method (rejecting promise)
      8 esid: sec-promise.race
      9 info: |
     10    11. Let result be PerformPromiseRace(iteratorRecord, C, promiseCapability).
     11    12. If result is an abrupt completion,
     12        a. If iteratorRecord.[[done]] is false, let result be
     13           IteratorClose(iterator, result).
     14        b. IfAbruptRejectPromise(result, promiseCapability).
     15 
     16    [...]
     17 
     18    25.4.4.3.1 Runtime Semantics: PerformPromiseRace
     19 
     20    1. Repeat
     21        [...]
     22        j. Let result be Invoke(nextPromise, "then",
     23           «promiseCapability.[[Resolve]], promiseCapability.[[Reject]]»).
     24        k. ReturnIfAbrupt(result).
     25 flags: [async]
     26 ---*/
     27 
     28 var promise = new Promise(function() {});
     29 var error = new Test262Error();
     30 
     31 promise.then = function() {
     32  throw error;
     33 };
     34 
     35 Promise.race([promise]).then(function() {
     36  throw new Test262Error('The promise should be rejected');
     37 }, function(reason) {
     38  assert.sameValue(reason, error);
     39 }).then($DONE, $DONE);