Does anyone have any hints of how to test GUIs under squeak? I'm thinking 
of exposing all the elements (buttons lists windows) as a sub-class and 
then using smalltalk to simulate the button presses and keystrokes.

Lets say AppWindow has 3 buttons. I create a subclass called TestAppWindow 
with methods that return references to these buttons. Then I send mouse 
down or key down events to the button.