GNU bug report logs - #75906
30.0.93; track-changes-tests--random failure

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Message #22 received at 75906 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 75906 <at> debbugs.gnu.org, morgan <at> ice9.digital, manphiz <at> gmail.com
Subject: Re: bug#75906: 30.0.93; track-changes-tests--random failure
Date: Mon, 03 Feb 2025 14:11:22 +0200

> Cc: 75906 <at> debbugs.gnu.org, Morgan Willcock <morgan <at> ice9.digital>
> Date: Sun, 02 Feb 2025 18:13:47 -0500
> From:  Stefan Monnier via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs <at> gnu.org>
> 
> forcemerge 75906 73041
> thanks
> 
> Hi,
> 
> It looks like those two bugs are one and the same.
> 
> > > Hmm... that's weird.  I tried:
> > >
> > >     src/emacs --batch -Q                                              \
> > >               --eval '(setq track-changes-tests--random-seed 814217)' \
> > >               -l test/lisp/emacs-lisp/track-changes-tests.elc         \
> > >               --eval '(ert-run-tests-batch-and-exit t)'
> 
> Duh!  It was just a pilot error on my end: the seed needs to be
> a string.  After fixing the above to use
> 
>     (setq track-changes-tests--random-seed "814217")
> 
> I was able to reproduce the problem locally.
> 
> > It looks like this test may be flaky.
> 
> It's randomized (which is why it prints the seed it used, so you can
> try and reproduce it reliably once it hits a problem).
> 
> > | Test track-changes-tests--random backtrace:
> > |   cl--assertion-failed((not (memq id track-changes--clean-trackers)))
> > |   track-changes-fetch(#s(track-changes--tracker :signal #f(compiled-fu
> 
> After finding the origin of the problem, I think that the better fix is
> to adjust the assertion.  The better short term fix for `emacs-30` is to
> simply comment out this assertion.
> 
> Any objection to pushing the patch below to `emacs-30`?

No objection, please go ahead, and thanks.

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