bug#81584: 30.2; zero-width minibuffer

On 2026-08-09 04:49, martin rudalics wrote:
>>> Perhaps there is a test jig
>>> to spaz away at Emacs until (not (window-full-width-p
>>> (minibuffer-window)))?
> 
> You can add something like
> 
> (defun check-mini (_frame_or_window)
>   (dolist (frame (frame-list))
>     (unless (window-full-width-p (minibuffer-window frame))
>       (error "Minibuffer window of frame %s not full width" frame))))
> 
> to a number of hooks like 'window-state-change-functions' or
> 'minibuffer-exit-hook' but I wouldn't recommend it.  These will never
> fire.  Whenever a frame gets garbaged in some way I try C-x 5 2 to get
> me a new normal frame and delete and forget the old frame.  Only if the
> behavior recurs I try to dig deeper.
In the past I have put such checks on post-command-hook
to save state including (recent-keys t) and then err,
but as you say, they never fire.

		Peace
			--Devon