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# coding: utf8
# Author: Rodrigo Bistolfi
# Date: 03/2013
""" Base class for Nikola test cases """
__all__ = ["BaseTestCase", "cd", "LocaleSupportInTesting"]
from contextlib import contextmanager
import locale
import os
import sys
import unittest
import logbook
# Make logbook shutup
import nikola.utils
nikola.utils.LOGGER.handlers.append(logbook.TestHandler())
if sys.version_info < (2, 7):
try:
import unittest2
_unittest2 = True
except ImportError:
_unittest2 = False
if _unittest2:
BaseTestCase = unittest2.TestCase
else:
class BaseTestCase(unittest.TestCase):
""" Base class for providing 2.6 compatibility """
def assertIs(self, first, second, msg=None):
self.assertTrue(first is second)
def assertIsNot(self, first, second, msg=None):
self.assertTrue(first is not second)
def assertIsNone(self, expr, msg=None):
self.assertTrue(expr is None)
def assertIsNotNone(self, expr, msg=None):
self.assertTrue(expr is not None)
def assertIn(self, first, second, msg=None):
self.assertTrue(first in second)
def assertNotIn(self, first, second, msg=None):
self.assertTrue(first not in second)
def assertIsInstance(self, obj, cls, msg=None):
self.assertTrue(isinstance(obj, cls))
def assertNotIsInstance(self, obj, cls, msg=None):
self.assertFalse(isinstance(obj, cls))
else:
BaseTestCase = unittest.TestCase
@contextmanager
def cd(path):
old_dir = os.getcwd()
os.chdir(path)
yield
os.chdir(old_dir)
class LocaleSupportInTesting(object):
"""
Nikola needs two pairs of valid (language, locale_n) to test multilingual sites.
As languages of interest and installed OS support varies from host to host
we allow to specify two such pairs.
A valid pair complies
'languaje' one of the names of nikola translations ('en', 'es', ...)
'locale_n' is a string that python accepts to set a locale, like in
import locale
locale.setlocale(locale.LC_ALL, str(locale_n))
You specify the custom pairs to use with two environment variables
NIKOLA_LOCALE_DEFAULT (lang and locale to use as nikola's DEFAULT_LANG)
NIKOLA_LOCALE_OTHER
The value of the pair is lang (as in keys of Nikola's TRANSLATIONS), followed
by coma, followed by the locale.
"""
@classmethod
def initialize(cls):
"""Determines and diagnoses the two (lang, locale) pairs to use in testing
While it only needs to run once at the beginning of the testing session,
calling multiple times is fine.
"""
if hasattr(cls, 'langlocales'):
return
defaults = {
'linux': {
# non-windows defaults, must be two locales suported by .travis.yml
'default': ("en", str("en_US.utf8")),
'other': ("es", str("es_ES.utf8")),
},
'windows': {
# windows defaults
'default': ("en", str("English")),
'other': ("es", str("Spanish")),
},
}
os_id = 'windows' if sys.platform == 'win32' else 'linux'
langlocales = {}
for suffix in ['other', 'default']:
try:
envar = 'NIKOLA_LOCALE_' + suffix.upper()
s = os.environ[envar]
parts = s.split(',')
lang = parts[0].strip()
try:
locale_n = str(parts[1].strip())
locale.setlocale(locale.LC_ALL, locale_n)
except Exception:
msg = ("Environment variable {0} fails to specify a valid <lang>,<locale>." +
"Check your syntax, check that python supports that locale in your host.")
nikola.utils.LOGGER.error(msg.format(envar))
sys.exit(1)
except KeyError:
lang, locale_n = defaults[os_id][suffix]
langlocales[suffix] = (lang, locale_n)
if (langlocales['default'][0] == langlocales['other'][0] or
langlocales['default'][1] == langlocales['other'][1]): # NOQA
# the mix of defaults and enviro is not good
msg = ('Locales for testing should differ in lang and locale, else ' +
'the test would we weak. Check your environment settings for ' +
'NIKOLA_LOCALE_DEFAULT and NIKOLA_LOCALE_OTHER')
nikola.utils.LOGGER.error(msg)
setattr(cls, 'langlocales', langlocales)
@classmethod
def initialize_locales_for_testing(cls, variant):
"""initializes nikola.utils.LocaleBorg"""
if not hasattr(cls, 'langlocales'):
cls.initialize()
default_lang = cls.langlocales['default'][0]
locales = {}
locales[default_lang] = cls.langlocales['default'][1]
if variant == 'unilingual':
pass
elif variant == 'bilingual':
locales[cls.langlocales['other'][0]] = cls.langlocales['other'][1]
else:
raise ValueError('Unknown locale variant')
nikola.utils.LocaleBorg.reset()
nikola.utils.LocaleBorg.initialize(locales, default_lang)
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