The `goog.testing.events.EventObserver` Class

`goog.testing.events.EventObserver()`

Event observer. Implements a handleEvent interface so it may be used as a listener in listening functions and methods.

@see: goog.events.listen
@see: goog.events.EventHandler

`.getEvents(opt_type)`

opt_type {string=}: If given, only return events of this type.
returns {!Array.<!goog.events.Event>}: The events handled, oldest to newest.

`.handleEvent(e)`

Handles an event and remembers it. Event listening functions and methods will call this method when this observer is used as a listener.

e {!goog.events.Event}: Event to handle.
@see: goog.events.listen
@see: goog.events.EventHandler