from __future__ import unicode_literals import os from django.core.exceptions import ImproperlyConfigured from django.test import SimpleTestCase, mock, override_settings from django.urls import LocaleRegexProvider from django.utils import translation from django.utils._os import upath here = os.path.dirname(upath(os.path.abspath(__file__))) @override_settings(LOCALE_PATHS=[os.path.join(here, 'translations', 'locale')]) class LocaleRegexProviderTests(SimpleTestCase): def setUp(self): translation.trans_real._translations = {} def tearDown(self): translation.trans_real._translations = {} def test_translated_regex_compiled_per_language(self): provider = LocaleRegexProvider(translation.gettext_lazy('^foo/$')) with translation.override('de'): de_compiled = provider.regex # compiled only once per language error = AssertionError('tried to compile url regex twice for the same language') with mock.patch('django.urls.resolvers.re.compile', side_effect=error): de_compiled_2 = provider.regex with translation.override('fr'): fr_compiled = provider.regex self.assertEqual(fr_compiled.pattern, '^foo-fr/$') self.assertEqual(de_compiled.pattern, '^foo-de/$') self.assertEqual(de_compiled, de_compiled_2) def test_regex_compile_error(self): """Regex errors are re-raised as ImproperlyConfigured.""" provider = LocaleRegexProvider('*') msg = '"*" is not a valid regular expression: nothing to repeat' with self.assertRaisesMessage(ImproperlyConfigured, msg): provider.regex