GNU bug report logs - #59317
29.0.50; Feature idea: suppress `message' output in ert batch test output

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From: Stefan Kangas <stefankangas <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>, Matt Armstrong <matt <at> rfc20.org>
Cc: 59317 <at> debbugs.gnu.org
Subject: bug#59317: 29.0.50; Feature idea: suppress `message' output in ert batch test output
Date: Wed, 16 Nov 2022 16:12:36 -0800

Eli Zaretskii <eliz <at> gnu.org> writes:

>> A good number of Emacs tests exercise parts of Emacs that call
>> `message'.
>
> Are you sure?  Many Emacs features display text that doesn't go
> through 'message'.
>
>> Idea: hide `message' output when running in batch mode, printing them
>> only for failed tests.
>
> We have set-message-function that could be used for this purpose, I
> think?  If indeed 'message' is the culprit.

Is there any way to capture and stop *all* output in the terminal for
passing tests?  Like `set-batch-output-function', or something to that
effect.

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