[RFC] I18N specification draft

[Alexander Belchenko]

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Martin Pool пишет:
>> Please take a look on my draft:
>> http://bazaar-vcs.org/DraftSpecs/I18nSupport
> 
> To me the largest code issue not addressed by this is what to do with
> the test suite.  Some ui-oriented tests want to assert about the
> strings and need to be run in a known locale.  On the other hand we
> probably want to test that the behaviour of most of the
> non-user-facing parts are consistent regardless of the locale, or to
> test them in any given locale.  The best course may be to first run
> everything in a english utf-8 locale, then add some ui tests that
> specifically work in other languages, then switch some non-ui-based
> tests back to running in the environment's default locale.

OK. I'm not completely understand something.
I think we need to run almost all test suite in C locale.
And probably for limited set of string resources
we can do testing of non-english locales.
But it difficult (for me) to say how and what exactly need to be tested.
Some help from TDD guru needed.

I propose to force C locale for all [blackbox] tests now,
and later decide what cases require special testing in
non-english locale.

I add this to specification:

Force C locale for tests
- ------------------------
Actually python's gettext library looks at environment variables
LANGUAGE, LC_ALL, LC_MESSAGES, LANG
to determine user language.

To disable translations we should explicitly set LANGUAGE to 'C'
for all tests.

We should pay attention to 2 points:

1) run bzr as subprocess
2) run bzr in the same process

In first case method TestCase.run_bzr_subprocess() should always
set environment variable LANGUAGE to value 'C' for child process.

In second case method TestCase._cleanEnvironment() should add
to new_env dictionary key-value pair:

	'LANGUAGE': 'C'


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