<title>Test that document.elementFromPoint supports "double" arguments
and takes into account the scrolloffset.</title>
<style>
    body { margin: 0; width: 1000px; }
</style>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<div style="width: 100.25px;">abc</div>
<script>
test(function() {
  var scrolloffset = 10;
  document.body.scrollLeft = scrolloffset;
  var divElement = document.querySelector("div");

  var rect = divElement.getBoundingClientRect();
  // Test that elementFromPoint hits div element.
  assert_equals(document.elementFromPoint(100.25 - scrolloffset, 12), divElement);

  // Page zoom factor of 3.0 should still hit div element.
  eventSender.setPageZoomFactor(3.0);
  assert_equals(document.elementFromPoint(100.25 - scrolloffset, 12), divElement);

  // Page zoom factor of 4.0 should hit body element as the fraction will not be snapped.
  eventSender.setPageZoomFactor(4.0);
  assert_equals(document.elementFromPoint(100.25 - scrolloffset, 12), document.body);
});
</script>