pointerevents/persistentDeviceId/get-persistendeviceid-from-pointer-mouse-event.tentative.html

<!DOCTYPE html>
<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>

<style>
  div {
    user-select: none; // Prevents text selection on drag.
  }
</style>
<div id="logger" draggable="false"></div>
<div id="console"></div>
<!-- This test documents the current behavior in Chrome for some
     pointerType == "mouse" events -->
<script>
    function CheckDeviceIdOne(event) {
        assert_equals(event.persistentDeviceId, 1, event.type + " deviceId is 1");
    }

    function CheckDeviceIdZero(event) {
        assert_equals(event.persistentDeviceId, 0, event.type + " deviceId is 0");
    }

    window.addEventListener("pointerdown", CheckDeviceIdOne, false);
    window.addEventListener("pointermove", CheckDeviceIdOne, false);
    window.addEventListener("pointerover", CheckDeviceIdOne, false);
    window.addEventListener("pointerup", CheckDeviceIdOne, false);
    window.addEventListener("click", CheckDeviceIdZero, false);

    promise_test(async () => {
        let actions = new test_driver.Actions()
          .addPointer("TestPointer", "mouse")
          .pointerDown()
          .pointerMove(100, 100)
          .pointerUp();

        await actions.send();

    }, 'PointerEvent.persistentDeviceId');
</script>