
PASS the event is an instance of TransitionEvent 
PASS the event inherts from Event 
PASS Missing type argument 
PASS type argument is string 
PASS type argument is null 
PASS event type set to undefined 
PASS propertyName has default value of empty string 
PASS elapsedTime has default value of 0.0 
PASS propertyName is readonly 
PASS elapsedTime is readonly 
PASS animationEventInit argument is null 
PASS animationEventInit argument is undefined 
PASS animationEventInit argument is empty dictionary 
PASS TransitionEvent.pseudoElement initialized from the dictionary 
PASS propertyName set to 'sample' 
PASS propertyName set to undefined 
PASS propertyName set to null 
PASS propertyName set to false 
PASS propertyName set to true 
PASS propertyName set to a number 
PASS propertyName set to [] 
PASS propertyName set to [1, 2, 3] 
PASS propertyName set to an object 
PASS propertyName set to an object with a valueOf function 
PASS elapsedTime set to 0.5 
PASS elapsedTime set to -0.5 
PASS elapsedTime set to undefined 
PASS elapsedTime set to null 
PASS elapsedTime set to false 
PASS elapsedTime set to true 
PASS elapsedTime set to '' 
PASS elapsedTime set to [] 
PASS elapsedTime set to [0.5] 
PASS elapsedTime set to an object with a valueOf function 
PASS elapsedTime cannot be set to NaN 
PASS elapsedTime cannot be set to Infinity 
PASS elapsedTime cannot be set to -Infinity 
PASS elapsedTime cannot be set to 'sample' 
PASS elapsedTime cannot be set to [0.5, 1.0] 
PASS elapsedTime cannot be set to an object 
PASS TransitionEventInit properties set value