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from django.conf import settings
from django.core.checks.messages import Error, Warning
from django.core.checks.urls import (
E006, check_url_config, check_url_namespaces_unique, check_url_settings,
get_warning_for_invalid_pattern,
)
from django.test import SimpleTestCase
from django.test.utils import override_settings
class CheckUrlConfigTests(SimpleTestCase):
@override_settings(ROOT_URLCONF='check_framework.urls.no_warnings')
def test_no_warnings(self):
result = check_url_config(None)
self.assertEqual(result, [])
@override_settings(ROOT_URLCONF='check_framework.urls.no_warnings_i18n')
def test_no_warnings_i18n(self):
self.assertEqual(check_url_config(None), [])
@override_settings(ROOT_URLCONF='check_framework.urls.warning_in_include')
def test_check_resolver_recursive(self):
# The resolver is checked recursively (examining URL patterns in include()).
result = check_url_config(None)
self.assertEqual(len(result), 1)
warning = result[0]
self.assertEqual(warning.id, 'urls.W001')
@override_settings(ROOT_URLCONF='check_framework.urls.include_with_dollar')
def test_include_with_dollar(self):
result = check_url_config(None)
self.assertEqual(len(result), 1)
warning = result[0]
self.assertEqual(warning.id, 'urls.W001')
self.assertEqual(warning.msg, (
"Your URL pattern '^include-with-dollar$' uses include with a "
"route ending with a '$'. Remove the dollar from the route to "
"avoid problems including URLs."
))
@override_settings(ROOT_URLCONF='check_framework.urls.contains_tuple')
def test_contains_tuple_not_url_instance(self):
result = check_url_config(None)
warning = result[0]
self.assertEqual(warning.id, 'urls.E004')
self.assertRegex(warning.msg, (
r"^Your URL pattern \('\^tuple/\$', <function <lambda> at 0x(\w+)>\) is "
r"invalid. Ensure that urlpatterns is a list of path\(\) and/or re_path\(\) "
r"instances\.$"
))
@override_settings(ROOT_URLCONF='check_framework.urls.include_contains_tuple')
def test_contains_included_tuple(self):
result = check_url_config(None)
warning = result[0]
self.assertEqual(warning.id, 'urls.E004')
self.assertRegex(warning.msg, (
r"^Your URL pattern \('\^tuple/\$', <function <lambda> at 0x(\w+)>\) is "
r"invalid. Ensure that urlpatterns is a list of path\(\) and/or re_path\(\) "
r"instances\.$"
))
@override_settings(ROOT_URLCONF='check_framework.urls.beginning_with_slash')
def test_beginning_with_slash(self):
msg = (
"Your URL pattern '%s' has a route beginning with a '/'. Remove "
"this slash as it is unnecessary. If this pattern is targeted in "
"an include(), ensure the include() pattern has a trailing '/'."
)
warning1, warning2 = check_url_config(None)
self.assertEqual(warning1.id, 'urls.W002')
self.assertEqual(warning1.msg, msg % '/path-starting-with-slash/')
self.assertEqual(warning2.id, 'urls.W002')
self.assertEqual(warning2.msg, msg % '/url-starting-with-slash/$')
@override_settings(
ROOT_URLCONF='check_framework.urls.beginning_with_slash',
APPEND_SLASH=False,
)
def test_beginning_with_slash_append_slash(self):
# It can be useful to start a URL pattern with a slash when
# APPEND_SLASH=False (#27238).
result = check_url_config(None)
self.assertEqual(result, [])
@override_settings(ROOT_URLCONF='check_framework.urls.name_with_colon')
def test_name_with_colon(self):
result = check_url_config(None)
self.assertEqual(len(result), 1)
warning = result[0]
self.assertEqual(warning.id, 'urls.W003')
expected_msg = "Your URL pattern '^$' [name='name_with:colon'] has a name including a ':'."
self.assertIn(expected_msg, warning.msg)
@override_settings(ROOT_URLCONF=None)
def test_no_root_urlconf_in_settings(self):
delattr(settings, 'ROOT_URLCONF')
result = check_url_config(None)
self.assertEqual(result, [])
def test_get_warning_for_invalid_pattern_string(self):
warning = get_warning_for_invalid_pattern('')[0]
self.assertEqual(
warning.hint,
"Try removing the string ''. The list of urlpatterns should "
"not have a prefix string as the first element.",
)
def test_get_warning_for_invalid_pattern_tuple(self):
warning = get_warning_for_invalid_pattern((r'^$', lambda x: x))[0]
self.assertEqual(warning.hint, "Try using path() instead of a tuple.")
def test_get_warning_for_invalid_pattern_other(self):
warning = get_warning_for_invalid_pattern(object())[0]
self.assertIsNone(warning.hint)
@override_settings(ROOT_URLCONF='check_framework.urls.non_unique_namespaces')
def test_check_non_unique_namespaces(self):
result = check_url_namespaces_unique(None)
self.assertEqual(len(result), 2)
non_unique_namespaces = ['app-ns1', 'app-1']
warning_messages = [
"URL namespace '{}' isn't unique. You may not be able to reverse "
"all URLs in this namespace".format(namespace)
for namespace in non_unique_namespaces
]
for warning in result:
self.assertIsInstance(warning, Warning)
self.assertEqual('urls.W005', warning.id)
self.assertIn(warning.msg, warning_messages)
@override_settings(ROOT_URLCONF='check_framework.urls.unique_namespaces')
def test_check_unique_namespaces(self):
result = check_url_namespaces_unique(None)
self.assertEqual(result, [])
class UpdatedToPathTests(SimpleTestCase):
@override_settings(ROOT_URLCONF='check_framework.urls.path_compatibility.contains_re_named_group')
def test_contains_re_named_group(self):
result = check_url_config(None)
self.assertEqual(len(result), 1)
warning = result[0]
self.assertEqual(warning.id, '2_0.W001')
expected_msg = "Your URL pattern '(?P<named_group>\\d+)' has a route"
self.assertIn(expected_msg, warning.msg)
@override_settings(ROOT_URLCONF='check_framework.urls.path_compatibility.beginning_with_caret')
def test_beginning_with_caret(self):
result = check_url_config(None)
self.assertEqual(len(result), 1)
warning = result[0]
self.assertEqual(warning.id, '2_0.W001')
expected_msg = "Your URL pattern '^beginning-with-caret' has a route"
self.assertIn(expected_msg, warning.msg)
@override_settings(ROOT_URLCONF='check_framework.urls.path_compatibility.ending_with_dollar')
def test_ending_with_dollar(self):
result = check_url_config(None)
self.assertEqual(len(result), 1)
warning = result[0]
self.assertEqual(warning.id, '2_0.W001')
expected_msg = "Your URL pattern 'ending-with-dollar$' has a route"
self.assertIn(expected_msg, warning.msg)
class CheckCustomErrorHandlersTests(SimpleTestCase):
@override_settings(ROOT_URLCONF='check_framework.urls.bad_error_handlers')
def test_bad_handlers(self):
result = check_url_config(None)
self.assertEqual(len(result), 4)
for code, num_params, error in zip([400, 403, 404, 500], [2, 2, 2, 1], result):
with self.subTest('handler{}'.format(code)):
self.assertEqual(error, Error(
"The custom handler{} view "
"'check_framework.urls.bad_error_handlers.bad_handler' "
"does not take the correct number of arguments (request{})."
.format(code, ', exception' if num_params == 2 else ''),
id='urls.E007',
))
@override_settings(ROOT_URLCONF='check_framework.urls.bad_error_handlers_invalid_path')
def test_bad_handlers_invalid_path(self):
result = check_url_config(None)
paths = [
'django.views.bad_handler',
'django.invalid_module.bad_handler',
'invalid_module.bad_handler',
'django',
]
hints = [
"Could not import '{}'. View does not exist in module django.views.",
"Could not import '{}'. Parent module django.invalid_module does not exist.",
"No module named 'invalid_module'",
"Could not import '{}'. The path must be fully qualified.",
]
for code, path, hint, error in zip([400, 403, 404, 500], paths, hints, result):
with self.subTest('handler{}'.format(code)):
self.assertEqual(error, Error(
"The custom handler{} view '{}' could not be imported.".format(code, path),
hint=hint.format(path),
id='urls.E008',
))
@override_settings(ROOT_URLCONF='check_framework.urls.good_error_handlers')
def test_good_handlers(self):
result = check_url_config(None)
self.assertEqual(result, [])
class CheckURLSettingsTests(SimpleTestCase):
@override_settings(STATIC_URL='a/', MEDIA_URL='b/')
def test_slash_no_errors(self):
self.assertEqual(check_url_settings(None), [])
@override_settings(STATIC_URL='', MEDIA_URL='')
def test_empty_string_no_errors(self):
self.assertEqual(check_url_settings(None), [])
@override_settings(STATIC_URL='noslash')
def test_static_url_no_slash(self):
self.assertEqual(check_url_settings(None), [E006('STATIC_URL')])
@override_settings(STATIC_URL='slashes//')
def test_static_url_double_slash_allowed(self):
# The check allows for a double slash, presuming the user knows what
# they are doing.
self.assertEqual(check_url_settings(None), [])
@override_settings(MEDIA_URL='noslash')
def test_media_url_no_slash(self):
self.assertEqual(check_url_settings(None), [E006('MEDIA_URL')])
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