mouse-move-with-hidden-elements.html

<!DOCTYPE html>
<script src="../resources/runner.js"></script>

<div id="div" hidden></div>
<p id="container" contenteditable>foo</p>

<script>
const kElements = 20000;
div.innerHTML = '<div>test</div>'.repeat(kElements);
container.focus();
container.hidden = true;

var div2 = document.createElement('div');
PerfTestRunner.measureTime({
  description: `Measures performance of WebViewImpl::handleInputEvent when selection null and has ${kElements} hidden elements`,
  setup: () => {
    eventSender.mouseMoveTo(0, 0);
    document.body.appendChild(div2);
  },
  run: () => {
    eventSender.mouseMoveTo(100, 100);
  },
  done: () => {
    document.body.removeChild(div2);
  }
});
</script>

chromium/third_party/blink/perf_tests/editing/mouse-move-with-hidden-elements.html