third_party/WebKit/LayoutTests/fast/dom/promise-rejection-events-console.html

   1 <!DOCTYPE html>
   2 <meta charset="utf-8">
   3 <script src="../../resources/testharness.js"></script>
   4 <script src="../../resources/testharnessreport.js"></script>
   5 <script>
   6 'use strict';
   7 async_test(function(t) {
   8   var e = new Error('e');
   9   var p = Promise.reject(e);
  10
  11   window.onunhandledrejection = function(evt) {
  12     t.step(function() {
  13       assert_true(evt.cancelable);
  14       assert_equals(evt.promise, p);
  15       assert_equals(evt.reason, e);
  16     });
  17     setTimeout(function() {
  18       var unreached = t.unreached_func('promise should not be fulfilled');
  19       p.then(unreached, function(reason) {
  20         t.step(function() {
  21           assert_equals(reason, e);
  22         });
  23       });
  24     }, 10);
  25     evt.preventDefault();
  26   };
  27
  28   window.onrejectionhandled = function(evt) {
  29     t.step(function() {
  30       assert_false(evt.cancelable);
  31       assert_equals(evt.promise, p);
  32       assert_equals(evt.reason, e);
  33     });
  34     setTimeout(function() {
  35       if (window.internals) {
  36         t.step(function() {
  37           assert_equals(internals.consoleMessageArgumentCounts(document).length, 0);
  38         });
  39       }
  40       t.done();
  41     }, 10);
  42   };
  43 }, 'evt.preventDefault() should suppress console output.');
  44 </script>