st scroller of scrollers) {
        scroller.addEventListener("scroll", onscroll);
      }
    });
    // The cursor is expected on the scrollbar, but if it's not (e.g. if the
    // scrollbar is overlay and isn't show), the test should still pass.
    const actions = new test_driver.Actions().scroll(295, 200, 0, 50, { duration: 50 });
    actions.send();
    assert_equals(await scrolled, "root", "Incorrect element scrolled");
  }, "Wheel-scroll over pointer-events: none scroller skips that scroller");
</sc