
PASS canShare with no arguments (same as empty dictionary) 
PASS canShare with an empty dictionary 
PASS canShare with a undefined argument (same as empty dictionary) 
PASS canShare with a null argument (same as empty dictionary) 
PASS canShare with a dictionary containing only surplus fields 
PASS canShare with an invalid URL 
PASS canShare with attribute undefined is equivalent to omitting the attribute 
PASS canShare with title 
PASS canShare with text 
PASS canShare with URL 
PASS canShare with null attribute 
PASS canShare with number 
PASS canShare with object 
PASS canShare with unexpected field 
PASS canShare with data URL 
PASS canShare with empty URL 
PASS canShare with URL having no scheme