chromium/third_party/blink/web_tests/external/wpt/pointerevents/mouse-pointer-boundary-events-for-shadowdom.html

<!DOCTYPE HTML>
<meta name="viewport" content="width=device-width">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script type="text/javascript" src="pointerevent_support.js"></script>

<h1>PointerEvent: Verifies that mouse boundary events don't point to shadow-dom</h1>

<input id="target" style="margin: 20px">

<script>
  function name(node) {
    return node? node.tagName : "(null)";
  }

  function get_event_details(e) {
      return e.type + " target=" + name(e.target) + " relatedTarget=" + name(e.relatedTarget);
  }

  function events_match_expected(actualEvents, expectedEventDetails) {
      if (actualEvents.length != expectedEventDetails.length)
        return false;

      let actualEventDetails = actualEvents.map(e => get_event_details(e));
      return (expectedEventDetails.every(expected => actualEventDetails.includes(expected)) &&
              arePointerEventsBeforeCompatMouseEvents(actualEvents) &&
              actualEventDetails[0] == expectedEventDetails[0]);
  }

  promise_test(async () => {
    let rect = document.getElementById("target").getBoundingClientRect();
    let targetEvents = ["mouseout", "pointerout", "mouseover", "pointerover"];
    let receivedEvents = [];
    var moveReceived = false;

    targetEvents.forEach(function(eventName) {
      window.addEventListener(eventName, function(e) {
        receivedEvents.push(e);
      });
    });

    window.addEventListener('pointermove', () => { moveReceived = true; });

    await new test_driver.Actions()
               .addPointer("default-mouse")
               .pointerMove(Math.ceil(rect.left - 10), Math.ceil(rect.top - 10))
               .send()
    await resolveWhen(() => { return moveReceived == true });

    moveReceived = false;
    receivedEvents.length = 0;
    await new test_driver.Actions()
               .addPointer("default-mouse")
               .pointerMove(Math.ceil(rect.left + 10), Math.ceil(rect.top + 10))
               .send()
    await resolveWhen(() => { return moveReceived == true });

    let intoInputExpected = [
      "pointerout target=BODY relatedTarget=INPUT",
      "pointerover target=INPUT relatedTarget=BODY",
      "mouseout target=BODY relatedTarget=INPUT",
      "mouseover target=INPUT relatedTarget=BODY",
    ];
    assert_true(events_match_expected(receivedEvents, intoInputExpected), "Moved into <input>");


    moveReceived = false;
    receivedEvents.length = 0;
    await new test_driver.Actions()
               .addPointer("default-mouse")
               .pointerMove(Math.ceil(rect.left - 10), Math.ceil(rect.top - 10))
               .send()
    await resolveWhen(() => { return moveReceived == true });

    let outOfInputExpected = [
      "pointerout target=INPUT relatedTarget=BODY",
      "pointerover target=BODY relatedTarget=INPUT",
      "mouseout target=INPUT relatedTarget=BODY",
      "mouseover target=BODY relatedTarget=INPUT",
    ];
    assert_true(events_match_expected(receivedEvents, outOfInputExpected), "Moved out of <input>");
  }, "PointerEvent: Verifies that mouse boundary events don't point to shadow-dom");
</script>