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gh-130655: Increase test coverage of gettext._expand_lang #130656

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Merged
merged 1 commit into from
Feb 28, 2025
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gh-130655: Increase test coverage of gettext._expand_lang #130656

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27 changes: 27 additions & 0 deletions Lib/test/test_gettext.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
import base64
import gettext
import unittest
import unittest.mock
from functools import partial

from test import support
Expand Down Expand Up @@ -691,6 +692,32 @@ def test_cache(self):
self.assertEqual(t.__class__, DummyGNUTranslations)


class ExpandLangTestCase(unittest.TestCase):
def test_expand_lang(self):
# Test all combinations of territory, charset and
# modifier (locale extension)
locales = {
'cs': ['cs'],
'cs_CZ': ['cs_CZ', 'cs'],
'cs.ISO8859-2': ['cs.ISO8859-2', 'cs'],
'cs@euro': ['cs@euro', 'cs'],
'cs_CZ.ISO8859-2': ['cs_CZ.ISO8859-2', 'cs_CZ', 'cs.ISO8859-2',
'cs'],
'cs_CZ@euro': ['cs_CZ@euro', 'cs@euro', 'cs_CZ', 'cs'],
'cs.ISO8859-2@euro': ['cs.ISO8859-2@euro', 'cs@euro',
'cs.ISO8859-2', 'cs'],
'cs_CZ.ISO8859-2@euro': ['cs_CZ.ISO8859-2@euro', 'cs_CZ@euro',
'cs.ISO8859-2@euro', 'cs@euro',
'cs_CZ.ISO8859-2', 'cs_CZ',
'cs.ISO8859-2', 'cs'],
}
for locale, expanded in locales.items():
with self.subTest(locale=locale):
with unittest.mock.patch("locale.normalize",
return_value=locale):
self.assertEqual(gettext._expand_lang(locale), expanded)


class MiscTestCase(unittest.TestCase):
def test__all__(self):
support.check__all__(self, gettext,
Expand Down
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