tor-browser

The Tor Browser
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S25.4.4.3_A2.2_T3.js (877B)

      1 // |reftest| async
      2 // Copyright 2014 Cubane Canada, Inc.  All rights reserved.
      3 // See LICENSE for details.
      4 
      5 /*---
      6 info: |
      7    Promise.race rejects when GetIterator() returns an abrupt completion
      8    4. Let iterator be GetIterator(iterable).
      9    5. IfAbruptRejectPromise(iterator, promiseCapability)
     10 es6id: S25.4.4.3_A2.2_T3
     11 author: Sam Mikes
     12 description: Promise.race rejects if GetIterator throws
     13 features: [Symbol.iterator]
     14 flags: [async]
     15 ---*/
     16 
     17 var iterThrows = {};
     18 Object.defineProperty(iterThrows, Symbol.iterator, {
     19  get: function() {
     20    throw new Error("abrupt completion");
     21  }
     22 });
     23 
     24 Promise.race(iterThrows).then(function() {
     25  throw new Test262Error('Promise unexpectedly fulfilled: Promise.race(iterThrows) should throw');
     26 }, function(err) {
     27  assert(!!(err instanceof Error), 'The value of !!(err instanceof Error) is expected to be true');
     28 }).then($DONE, $DONE);