Tests that the cancel touch event is sent correctly.
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
PASS successfullyParsed is true
TEST COMPLETE
PASS event.type is "touchcancel"
PASS cancelEvent is non-null.
PASS cancelEvent.pageX is 25
PASS cancelEvent.pageY is 25
PASS successfullyParsed is true
TEST COMPLETE