tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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arg-poisoned-then.js (975B)

      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    `Promise.resolve` invoked with an object with a "poisoned" `then` property
      8 es6id: 25.4.4.5
      9 info: |
     10    6. Let resolveResult be Call(promiseCapability.[[Resolve]], undefined,
     11       «x»).
     12 
     13    [...]
     14 
     15    25.4.1.3.2 Promise Resolve Functions
     16 
     17    8. Let then be Get(resolution, "then").
     18    9. If then is an abrupt completion, then
     19       a. Return RejectPromise(promise, then.[[value]]).
     20 flags: [async]
     21 ---*/
     22 
     23 var poisonedThen = {};
     24 var err = new Test262Error();
     25 Object.defineProperty(poisonedThen, 'then', {
     26  get: function() {
     27    throw err;
     28  }
     29 });
     30 
     31 Promise.resolve(poisonedThen).then(function() {
     32  throw new Test262Error(
     33    'Promise should be rejected when retrieving `then` property throws an error'
     34  );
     35 }, function(reason) {
     36  assert.sameValue(reason, err);
     37 }).then($DONE, $DONE);