django/tests/check_framework/test_translation.py

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from django.core.checks.translation import check_setting_language_code
from django.test import SimpleTestCase, override_settings
class TranslationCheckTests(SimpleTestCase):
@override_settings(LANGUAGE_CODE="eu")
def test_valid_language_code_format_ll_only(self):
result = check_setting_language_code(None)
self.assertEqual(len(result), 0)
@override_settings(LANGUAGE_CODE="")
def test_invalid_language_code_format_ll_only(self):
result = check_setting_language_code(None)
self.assertEqual(len(result), 1)
error = result[0]
self.assertEqual(error.id, 'translation.E001')
self.assertEqual(error.msg, (
"LANGUAGE_CODE in settings.py is eü. It should be in the form ll or ll-cc where ll is the language and cc "
"is the country. Examples include: it, de-at, es, pt-br. The full set of language codes specifications is "
"outlined by https://en.wikipedia.org/wiki/IETF_language_tag#Syntax_of_language_tags"
))
@override_settings(LANGUAGE_CODE="en-US")
def test_valid_language_code_format_ll_cc(self):
result = check_setting_language_code(None)
self.assertEqual(len(result), 0)
@override_settings(LANGUAGE_CODE="en_US")
def test_invalid_language_code_format_ll_cc(self):
result = check_setting_language_code(None)
self.assertEqual(len(result), 1)
error = result[0]
self.assertEqual(error.id, 'translation.E001')
self.assertEqual(error.msg, (
"LANGUAGE_CODE in settings.py is en_US. It should be in the form ll or ll-cc where ll is the language and "
"cc is the country. Examples include: it, de-at, es, pt-br. The full set of language codes specifications "
"is outlined by https://en.wikipedia.org/wiki/IETF_language_tag#Syntax_of_language_tags"
))