Re: [DRAFT PATCH v5] Decouple LANG= and testing (was: Test failure due to LANG)

[Ihor Radchenko <yantar92@posteo.net>]

Ruijie Yu <ruijie@netyu.xyz> writes:

> Ihor Radchenko <yantar92@posteo.net> writes:
>
>> (let ((org-time-stamp-formats '("%Y-%m-%d" . "%Y-%m-%d %H:%M")))
>>      (org-element-timestamp-interpreter timestamp nil))
>
> Thanks for the pointer.  I have made this into a macro and redid my
> changes accordingly.  Please also let me know if more work should be
> dedicated to avoid code duplication in tests (I see a lot of duplication
> in the portions I touched in testing/lisp/test-org.el).

Thanks!
Some comments below.

> +(defmacro org-test-with-result (result &rest body)
...
> +             (_ result))))
> +
> +(defmacro org-test-without-dow (result &rest body)
> +  "Eval BODY skipping day-of-week in timestamps.
> +See `org-test-with-result' for RESULT and the return value."
> +  (declare (indent 1))
> +  `(let ((org-time-stamp-formats '("%Y-%m-%d" . "%Y-%m-%d %H:%M")))
> +     ;; ,(macroexpand-1 `(org-test-with-result ,result ,@body))
> +     (org-test-with-result ,result ,@body)))

When reading the test code, this `org-test-without-dow' is quite
confusing - the name suggests "day of week"-related, but RESULTS='buffer
argument is doing something completely different.

IMHO, it would be cleaner to:
1. (let ((org-time-stamp-formats ...)) ...) around the whole test.
2. Use `org-test-with-result' explicitly inside individual test clauses.

> +(defconst org-test-day-of-weeks-abbrev
> +  (apply #'vector
> +         (seq-map (apply-partially #'format-time-string "%a")
> +                  org-test-day-of-weeks-seconds))
> +  "Vector of abbreviated names of days of week.
> +See `org-test-day-of-weeks-seconds'.")
> +
> +(defconst org-test-day-of-weeks-full
> +  (apply #'vector
> +         (seq-map (apply-partially #'format-time-string "%A")
> +                  org-test-day-of-weeks-seconds))
> +  "Vector of full names for days of week.
> +See `org-test-day-of-weeks-seconds'.")

These constants make it necessary to write incantations like

   (sun (aref org-test-day-of-weeks-abbrev 0))

Why not creating a function like (org-test-translate-dow "Mon")
or (org-test-translate-dow "Monday") that will do the same?
It will be a lot more readable as well. You can then use an alist
instead of vectors.

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