pointerdown",
                             "innerFrame received gotpointercapture",
                             "innerFrame received pointermove",
                             "innerFrame received lostpointercapture",
                             "innerFrameDocument received pointermove",
                             "innerFrameDocument received pointerup",];
        await new test_driver.Actions()
                             .pointerMove(200, 200)
                             .pointerDown()
             