third_party/WebKit/ManualTests/scroll-wheel-select-element.html

   1 <!--- Verify that a large drop-down paints properly when scrolling it with the mousewheel -->
   2 <script>
   3   window.onload = function() {
   4     var frag = document.createDocumentFragment();
   5     for (var i = 0; i < 100; i++) {
   6       var opt = document.createElement('option');
   7       opt.textContent = 'option ' + i;
   8       frag.appendChild(opt);
   9     }
  10     var select = document.querySelector('select');
  11     select.appendChild(frag);
  12   }
  13 </script>
  14 <select></select>