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Re: 27.0.50: How can I test a buffer-local window-configuration-change-h

From: Stefan Monnier
Subject: Re: 27.0.50: How can I test a buffer-local window-configuration-change-hook in batch mode?
Date: Fri, 25 Oct 2019 08:53:11 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux)

> Yes, but it it also is impossible to write a batch-mode test which
> runs _any_ of the display-related hooks, because the only "correct"
> way to do that is to trigger redisplay, and you cannot do that in
> batch mode.  So you can only write partial tests for these hooks, by
> invoking them directly from Lisp.

IIRC there are ways to run Emacs in "batch" yet make it "display" at the
same time.  E.g. you can run it in a virtual X server, and I'm sure
there are ways to do the same in "virtual terminal emulators".


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