third_party/web_platform_tests/DOMEvents/ClickFakeEvent.nondocument.html

<!DOCTYPE html>
<title>Click event on an element not in the document</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=log></div>
<script>
test(function() {
  var EVENT = "click";
  var TARGET = document.createElement("somerandomelement");
  var t = async_test("Click event can be dispatched to an element that is not in the document.")
  TARGET.addEventListener(EVENT, t.step_func(function(evt) {
    assert_equals(evt.target, TARGET);
    t.done();
  }), true);
  var e = document.createEvent("Event");
  e.initEvent(EVENT, true, true);
  TARGET.dispatchEvent(e);
});
</script>