the end time is less'
                      + ' than the current time');

  animation.effect.updateTiming({ endDelay: 100 * MS_PER_SEC });
  assert_array_equals(div.getAnimations(), [animation],
                      'Animation should be returned after setting a positive'
                      + ' end delay such that the end time is more than the'
                      + ' current time');
}, 'Returns animations based on dynamic changes to individual'
   + ' animations\' end delay');

test(t => {
  const div