TOP TOP TOP TOP TOP TOP TOP TOP TOP TOP TOP TOP TOP TOP Scroll mouse wheel over here Scroll mouse wheel over here Scroll mouse wheel over here Scroll mouse wheel over here Scroll mouse wheel over here Scroll mouse wheel over here END END END END END END END END END END END END END END Tests the basic functionality of the standard wheel event On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS WheelEvent.prototype.__proto__ is MouseEvent.prototype PASS WheelEvent.DOM_DELTA_PIXEL is 0x00 PASS WheelEvent.DOM_DELTA_LINE is 0x01 PASS WheelEvent.DOM_DELTA_PAGE is 0x02 PASS window.onwheel is null PASS document.onwheel is null PASS testDiv.onwheel is null Wheel event fired PASS testEvent.__proto__ is WheelEvent.prototype PASS testEvent.__proto__.__proto__ is MouseEvent.prototype PASS testEvent.deltaX > 0 is true PASS testEvent.deltaY > 0 is true PASS testEvent.deltaZ is 0 PASS testEvent.deltaMode is WheelEvent.DOM_DELTA_PIXEL Scroll event fired PASS eventDeltaX is scrollDeltaX PASS eventDeltaY is scrollDeltaY PASS successfullyParsed is true TEST COMPLETE