Re: regression in key handling

["Lennart Borgman (gmail)" <lennart.borgman@gmail.com>]

Paul Pogonyshev wrote:
> Richard Stallman wrote:
>>     I really think Emacs would benifit from some automated system
>>     of regression testing, like unit tests or sth. like that.
>>
>> It isn't trivial do that for keyboard input.
>> Would you like to work on that?
> 
> I'm not following Emacs development closely, but I noticed some
> discussion about automated test framework recently.  Didn't see
> what it came too, though.
> 
> But given that such a framework is in place, I could write
> something like this test:
> 
>     ;; Test that S-backspace deletes exactly one char.
>     (with-temp-buffer
>       (insert "XY")
>       ; Dispatch S-backspace key somehow...
>       (assert (= (buffer-size) 1)))
> 
> The problem is I don't know how to emulate a key press.  Ideally,
> it should work exactly the same way as if user pressed the key.
> 
> So, we'd need 1) a testing framework (I assume someone wrote
> something already, given the discussion) and 2) a way to emulate
> key presses.  Is there a way to do point 2) in Emacs already?


You can use uread-command-events to simulate events, see for example 
isearch-unread.