[ruby-core:98207] [Ruby master Misc#16839] Unicode.org - downloads & tests

Issue #16839 has been updated by duerst (Martin D=FCrst).


The tests are valuable at least for me when upgrading to a new Unicode vers=
ion. Because the code affected is relatively independent and stable, the va=
lue for the average CI is probably not too high. But my guess is that this =
applies to a lot of other tests. In other words, most of the tests are wort=
hless most of the time, it's just that we don't know which ones :-).

Unicode has reported some problems with their server/network provider a few=
 weeks ago; I can recheck how things are looking now. And any Web site (eve=
n GitHub!) can occasionally have network problems, or can look like it has.=
 The main problem with downloading files from Unicode.org is not that it mi=
ght occasionally not work, but that it's quite a bit of load on the Unicode=
.org Web site if everybody downloads these files every time they do CI.

My understanding is that e.g. our CI on Travis is organized so that these f=
iles are cached across CI runs. It would definitely be a good idea if somet=
hing similar is done for other kinds of CI. I'm not familiar with GitHub re=
leases (can you provide a pointer?), but if this is some kind of internal c=
aching mechanism, then that may be the right thing to do. But if that's som=
ething that allows others (e.g. even other languages) to reference the data=
 directly on GitHub, that should definitely be avoided. The original data i=
s at Unicode.org, and only there.

----------------------------------------
Misc #16839: Unicode.org - downloads & tests
https://bugs.ruby-lang.org/issues/16839#change-85444

* Author: MSP-Greg (Greg L)
* Status: Open
* Priority: Normal
----------------------------------------
For quite a while, one can optionally download files from unicode.org, and =
the files enable additional tests.

Are these tests worthwhile?  Some CI uses them, others not.

If above is true:

For the second time in a few weeks, downloading the files has failed.  I've=
 gotten the impression that some people here are involved with Unicode.org.=
  Might it consider having the files mirrored as GitHub releases so downloa=
ding them for CI use is reliable?



-- =

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