Re: test-org-table/sort-lines: Failing test on macOS

[Ihor Radchenko <yantar92@posteo.net>]

Michael Brand <michael.ch.brand@gmail.com> writes:

> For this specific subject I can not see a follow up in this thread, or
> an implementation on the branches bugfix or main. And the complaint of
> the OP about the failing test is still valid on bugfix (on main ~make
> test~ aborted before with "void-variable (file)" on "(delete-file
> file)" quite early when loading testing/lisp/test-ob-tangle.el).

There was a transient problem on main. Now, make test should run.

This thread concluded with
https://git.savannah.gnu.org/cgit/emacs/org-mode.git/commit/?id=413192698
(on main)

> As far as I understand and agree, some Org functionality wants to
> stick with ~string-collate-lessp~. Is it welcome if I finish working
> on my local patch that plans to use
>
> #+begin_src emacs-lisp
>   (defun org-test-string-collate-lessp-ignore-case-supported-p
>       (&optional locale)
>     "Whether `string-collate-lessp' supports ignore case for LOCALE.
>   According to the docstring of `string-collate-lessp' it does not
>   implement ignore case for some locale on some operating
>   systems (actually depending on libc of Emacs). E. g. on macOS
>   `string-collate-lessp' does not ignore case for the locale C.
>
>   See also https://debbugs.gnu.org/cgi/bugreport.cgi?bug=59275 and
>   https://list.orgmode.org/orgmode/m2ilkwso8r.fsf@me.com"
>     (let ((ignore-case t))
>       (string-collate-lessp "a" "B" locale ignore-case)))
> #+end_src
>
> not to skip the test as suggested in the quote at the beginning of
> this message but to bifurcate the expected result of the ERT to fix
> the test for e. g. macOS on bugfix?

AFAIU, this is more complex. We cannot have a simple test for all
possible locales. Or did you find one? My conclusion from bug#59275
discussion is that simple tries like
(string-collate-lessp "a" "B" locale t)
will not work.
Especially for non-US locales.

-- 
Ihor Radchenko // yantar92,
Org mode maintainer,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
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