third_party/WebKit/LayoutTests/web-animations-api/player-play-with-negative-current-time.html

   1 <!DOCTYPE html>
   2 <script src="../resources/testharness.js"></script>
   3 <script src="../resources/testharnessreport.js"></script>
   4 <div id="target"></div>
   5 <script>
   6 test(function() {
   7   var keyframes = [
   8       {left: '0px'},
   9       {left: '100px'}
  10   ];
  11   var timing = {
  12       duration: 1,
  13       delay: -100,
  14   };
  15   var player = target.animate(keyframes, timing);
  16   document.timeline.currentTime = 0;
  17   var oldStartTime = player.startTime;
  18   player.startTime += 2000;
  19   assert_equals(player.startTime, oldStartTime + 2000);
  20   player.play();
  21   assert_equals(player.startTime, null);
  22   assert_equals(player.currentTime, 0);
  23 }, 'Play() called with a large negative delay');
  24 </script>