resolver for a default urlconf passing no argument and for the settings rooturlconf is the same cached object resolver for a default urlconf passing no argument and for the settings root_urlconf is the same cached object
from django.test import SimpleTestCase
from django.test.utils import override_settings
from django.urls.resolvers import RegexPattern, RoutePattern, get_resolver
from django.utils.translation import gettext_lazy as _


class RegexPatternTests(SimpleTestCase):
    def test_str(self):
        self.assertEqual(str(RegexPattern(_("^translated/$"))), "^translated/$")


class RoutePatternTests(SimpleTestCase):
    def test_str(self):
        self.assertEqual(str(RoutePattern(_("translated/"))), "translated/")


class ResolverCacheTests(SimpleTestCase):
    @override_settings(ROOT_URLCONF="urlpatterns.path_urls")
    def test_resolver_cache_default__root_urlconf(self):
        
        
        self.assertIs(get_resolver(), get_resolver("urlpatterns.path_urls"))
        self.assertIsNot(get_resolver(), get_resolver("urlpatterns.path_dynamic_urls"))