PASS event.wheelDeltaY is window.expectedScrollTop*-120
PASS event.wheelDeltaX is window.expectedScrollLeft*-120
PASS event.wheelDelta is window.expectedScrollTop*-120
PASS div.scrollTop is window.expectedScrollTop*window.pixelsPerWheelTick
PASS div.scrollLeft is window.expectedScrollLeft*window.pixelsPerWheelTick