# -*- coding: utf-8 -*-
"""
Unit tests for reverse URL lookups.
"""
from __future__ import unicode_literals
import sys
import unittest
from admin_scripts.tests import AdminScriptTestCase
from django.conf import settings
from django.conf.urls import include, url
from django.contrib.auth.models import User
from django.core.exceptions import ImproperlyConfigured, ViewDoesNotExist
from django.core.urlresolvers import (
NoReverseMatch, RegexURLPattern, RegexURLResolver, Resolver404,
ResolverMatch, get_callable, get_resolver, resolve, reverse, reverse_lazy,
)
from django.http import (
HttpRequest, HttpResponsePermanentRedirect, HttpResponseRedirect,
)
from django.shortcuts import redirect
from django.test import (
SimpleTestCase, TestCase, ignore_warnings, override_settings,
)
from django.test.utils import override_script_prefix
from django.utils import six
from django.utils.deprecation import (
RemovedInDjango20Warning, RemovedInDjango110Warning,
)
from . import middleware, urlconf_outer, views
from .views import empty_view
resolve_test_data = (
# These entries are in the format: (path, url_name, app_name, namespace, view_name, func, args, kwargs)
# Simple case
('/normal/42/37/', 'normal-view', '', '', 'normal-view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
('/view_class/42/37/', 'view-class', '', '', 'view-class', views.view_class_instance, tuple(), {'arg1': '42', 'arg2': '37'}),
('/included/normal/42/37/', 'inc-normal-view', '', '', 'inc-normal-view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
('/included/view_class/42/37/', 'inc-view-class', '', '', 'inc-view-class', views.view_class_instance, tuple(), {'arg1': '42', 'arg2': '37'}),
# Unnamed args are dropped if you have *any* kwargs in a pattern
('/mixed_args/42/37/', 'mixed-args', '', '', 'mixed-args', views.empty_view, tuple(), {'arg2': '37'}),
('/included/mixed_args/42/37/', 'inc-mixed-args', '', '', 'inc-mixed-args', views.empty_view, tuple(), {'arg2': '37'}),
('/included/12/mixed_args/42/37/', 'inc-mixed-args', '', '', 'inc-mixed-args', views.empty_view, tuple(), {'arg2': '37'}),
# Unnamed views should have None as the url_name. Regression data for #21157.
('/unnamed/normal/42/37/', None, '', '', 'urlpatterns_reverse.views.empty_view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
('/unnamed/view_class/42/37/', None, '', '', 'urlpatterns_reverse.views.ViewClass', views.view_class_instance, tuple(), {'arg1': '42', 'arg2': '37'}),
# If you have no kwargs, you get an args list.
('/no_kwargs/42/37/', 'no-kwargs', '', '', 'no-kwargs', views.empty_view, ('42', '37'), {}),
('/included/no_kwargs/42/37/', 'inc-no-kwargs', '', '', 'inc-no-kwargs', views.empty_view, ('42', '37'), {}),
('/included/12/no_kwargs/42/37/', 'inc-no-kwargs', '', '', 'inc-no-kwargs', views.empty_view, ('12', '42', '37'), {}),
# Namespaces
('/test1/inner/42/37/', 'urlobject-view', 'testapp', 'test-ns1', 'test-ns1:urlobject-view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
('/included/test3/inner/42/37/', 'urlobject-view', 'testapp', 'test-ns3', 'test-ns3:urlobject-view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
('/ns-included1/normal/42/37/', 'inc-normal-view', '', 'inc-ns1', 'inc-ns1:inc-normal-view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
('/included/test3/inner/42/37/', 'urlobject-view', 'testapp', 'test-ns3', 'test-ns3:urlobject-view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
('/default/inner/42/37/', 'urlobject-view', 'testapp', 'testapp', 'testapp:urlobject-view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
('/other2/inner/42/37/', 'urlobject-view', 'nodefault', 'other-ns2', 'other-ns2:urlobject-view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
('/other1/inner/42/37/', 'urlobject-view', 'nodefault', 'other-ns1', 'other-ns1:urlobject-view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
# Nested namespaces
('/ns-included1/test3/inner/42/37/', 'urlobject-view', 'testapp', 'inc-ns1:test-ns3', 'inc-ns1:test-ns3:urlobject-view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
('/ns-included1/ns-included4/ns-included2/test3/inner/42/37/', 'urlobject-view', 'testapp', 'inc-ns1:inc-ns4:inc-ns2:test-ns3', 'inc-ns1:inc-ns4:inc-ns2:test-ns3:urlobject-view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
('/app-included/test3/inner/42/37/', 'urlobject-view', 'inc-app:testapp', 'inc-app:test-ns3', 'inc-app:test-ns3:urlobject-view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
('/app-included/ns-included4/ns-included2/test3/inner/42/37/', 'urlobject-view', 'inc-app:testapp', 'inc-app:inc-ns4:inc-ns2:test-ns3', 'inc-app:inc-ns4:inc-ns2:test-ns3:urlobject-view', views.empty_view, tuple(), {'arg1': '42', 'arg2': '37'}),
# Namespaces capturing variables
('/inc70/', 'inner-nothing', '', 'inc-ns5', 'inc-ns5:inner-nothing', views.empty_view, tuple(), {'outer': '70'}),
('/inc78/extra/foobar/', 'inner-extra', '', 'inc-ns5', 'inc-ns5:inner-extra', views.empty_view, tuple(), {'outer': '78', 'extra': 'foobar'}),
)
test_data = (
('places', '/places/3/', [3], {}),
('places', '/places/3/', ['3'], {}),
('places', NoReverseMatch, ['a'], {}),
('places', NoReverseMatch, [], {}),
('places?', '/place/', [], {}),
('places+', '/places/', [], {}),
('places*', '/place/', [], {}),
('places2?', '/', [], {}),
('places2+', '/places/', [], {}),
('places2*', '/', [], {}),
('places3', '/places/4/', [4], {}),
('places3', '/places/harlem/', ['harlem'], {}),
('places3', NoReverseMatch, ['harlem64'], {}),
('places4', '/places/3/', [], {'id': 3}),
('people', NoReverseMatch, [], {}),
('people', '/people/adrian/', ['adrian'], {}),
('people', '/people/adrian/', [], {'name': 'adrian'}),
('people', NoReverseMatch, ['name with spaces'], {}),
('people', NoReverseMatch, [], {'name': 'name with spaces'}),
('people2', '/people/name/', [], {}),
('people2a', '/people/name/fred/', ['fred'], {}),
('people_backref', '/people/nate-nate/', ['nate'], {}),
('people_backref', '/people/nate-nate/', [], {'name': 'nate'}),
('optional', '/optional/fred/', [], {'name': 'fred'}),
('optional', '/optional/fred/', ['fred'], {}),
('named_optional', '/optional/1/', [1], {}),
('named_optional', '/optional/1/', [], {'arg1': 1}),
('named_optional', '/optional/1/2/', [1, 2], {}),
('named_optional', '/optional/1/2/', [], {'arg1': 1, 'arg2': 2}),
('named_optional_terminated', '/optional/1/2/', [1, 2], {}),
('named_optional_terminated', '/optional/1/2/', [], {'arg1': 1, 'arg2': 2}),
('hardcoded', '/hardcoded/', [], {}),
('hardcoded2', '/hardcoded/doc.pdf', [], {}),
('people3', '/people/il/adrian/', [], {'state': 'il', 'name': 'adrian'}),
('people3', NoReverseMatch, [], {'state': 'il'}),
('people3', NoReverseMatch, [], {'name': 'adrian'}),
('people4', NoReverseMatch, [], {'state': 'il', 'name': 'adrian'}),
('people6', '/people/il/test/adrian/', ['il/test', 'adrian'], {}),
('people6', '/people//adrian/', ['adrian'], {}),
('range', '/character_set/a/', [], {}),
('range2', '/character_set/x/', [], {}),
('price', '/price/$10/', ['10'], {}),
('price2', '/price/$10/', ['10'], {}),
('price3', '/price/$10/', ['10'], {}),
('product', '/product/chocolate+($2.00)/', [], {'price': '2.00', 'product': 'chocolate'}),
('headlines', '/headlines/2007.5.21/', [], dict(year=2007, month=5, day=21)),
('windows', r'/windows_path/C:%5CDocuments%20and%20Settings%5Cspam/', [], dict(drive_name='C', path=r'Documents and Settings\spam')),
('special', r'/special_chars/~@+%5C$*%7C/', [r'~@+\$*|'], {}),
('special', r'/special_chars/some%20resource/', [r'some resource'], {}),
('special', r'/special_chars/10%25%20complete/', [r'10% complete'], {}),
('special', r'/special_chars/some%20resource/', [], {'chars': r'some resource'}),
('special', r'/special_chars/10%25%20complete/', [], {'chars': r'10% complete'}),
('special', NoReverseMatch, [''], {}),
('mixed', '/john/0/', [], {'name': 'john'}),
('repeats', '/repeats/a/', [], {}),
('repeats2', '/repeats/aa/', [], {}),
('repeats3', '/repeats/aa/', [], {}),
('insensitive', '/CaseInsensitive/fred', ['fred'], {}),
('test', '/test/1', [], {}),
('test2', '/test/2', [], {}),
('inner-nothing', '/outer/42/', [], {'outer': '42'}),
('inner-nothing', '/outer/42/', ['42'], {}),
('inner-nothing', NoReverseMatch, ['foo'], {}),
('inner-extra', '/outer/42/extra/inner/', [], {'extra': 'inner', 'outer': '42'}),
('inner-extra', '/outer/42/extra/inner/', ['42', 'inner'], {}),
('inner-extra', NoReverseMatch, ['fred', 'inner'], {}),
('inner-no-kwargs', '/outer-no-kwargs/42/inner-no-kwargs/1/', ['42', '1'], {}),
('disjunction', NoReverseMatch, ['foo'], {}),
('inner-disjunction', NoReverseMatch, ['10', '11'], {}),
('extra-places', '/e-places/10/', ['10'], {}),
('extra-people', '/e-people/fred/', ['fred'], {}),
('extra-people', '/e-people/fred/', [], {'name': 'fred'}),
('part', '/part/one/', [], {'value': 'one'}),
('part', '/prefix/xx/part/one/', [], {'value': 'one', 'prefix': 'xx'}),
('part2', '/part2/one/', [], {'value': 'one'}),
('part2', '/part2/', [], {}),
('part2', '/prefix/xx/part2/one/', [], {'value': 'one', 'prefix': 'xx'}),
('part2', '/prefix/xx/part2/', [], {'prefix': 'xx'}),
# Tests for nested groups. Nested capturing groups will only work if you
# *only* supply the correct outer group.
('nested-noncapture', '/nested/noncapture/opt', [], {'p': 'opt'}),
('nested-capture', '/nested/capture/opt/', ['opt/'], {}),
('nested-capture', NoReverseMatch, [], {'p': 'opt'}),
('nested-mixedcapture', '/nested/capture/mixed/opt', ['opt'], {}),
('nested-mixedcapture', NoReverseMatch, [], {'p': 'opt'}),
('nested-namedcapture', '/nested/capture/named/opt/', [], {'outer': 'opt/'}),
('nested-namedcapture', NoReverseMatch, [], {'outer': 'opt/', 'inner': 'opt'}),
('nested-namedcapture', NoReverseMatch, [], {'inner': 'opt'}),
# Regression for #9038
# These views are resolved by method name. Each method is deployed twice -
# once with an explicit argument, and once using the default value on
# the method. This is potentially ambiguous, as you have to pick the
# correct view for the arguments provided.
('urlpatterns_reverse.views.absolute_kwargs_view', '/absolute_arg_view/', [], {}),
('urlpatterns_reverse.views.absolute_kwargs_view', '/absolute_arg_view/10/', [], {'arg1': 10}),
('non_path_include', '/includes/non_path_include/', [], {}),
# Tests for #13154
('defaults', '/defaults_view1/3/', [], {'arg1': 3, 'arg2': 1}),
('defaults', '/defaults_view2/3/', [], {'arg1': 3, 'arg2': 2}),
('defaults', NoReverseMatch, [], {'arg1': 3, 'arg2': 3}),
('defaults', NoReverseMatch, [], {'arg2': 1}),
# Security tests
('security', '/%2Fexample.com/security/', ['/example.com'], {}),
)
class URLObject(object):
urlpatterns = [
url(r'^inner/$', views.empty_view, name='urlobject-view'),
url(r'^inner/(?P<arg1>[0-9]+)/(?P<arg2>[0-9]+)/$', views.empty_view, name='urlobject-view'),
url(r'^inner/\+\\\$\*/$', views.empty_view, name='urlobject-special-view'),
]
def __init__(self, app_name, namespace=None):
self.app_name = app_name
self.namespace = namespace
@property
def urls(self):
return self.urlpatterns, self.app_name, self.namespace
@property
def app_urls(self):
return self.urlpatterns, self.app_name
@override_settings(ROOT_URLCONF='urlpatterns_reverse.no_urls')
class NoURLPatternsTests(SimpleTestCase):
def test_no_urls_exception(self):
"""
RegexURLResolver should raise an exception when no urlpatterns exist.
"""
resolver = RegexURLResolver(r'^$', settings.ROOT_URLCONF)
self.assertRaisesMessage(
ImproperlyConfigured,
"The included urlconf 'urlpatterns_reverse.no_urls' does not "
"appear to have any patterns in it. If you see valid patterns in "
"the file then the issue is probably caused by a circular import.",
getattr, resolver, 'url_patterns'
)
@override_settings(ROOT_URLCONF='urlpatterns_reverse.urls')
class URLPatternReverse(SimpleTestCase):
@ignore_warnings(category=RemovedInDjango110Warning)
def test_urlpattern_reverse(self):
for name, expected, args, kwargs in test_data:
try:
got = reverse(name, args=args, kwargs=kwargs)
except NoReverseMatch:
self.assertEqual(expected, NoReverseMatch)
else:
self.assertEqual(got, expected)
def test_reverse_none(self):
# Reversing None should raise an error, not return the last un-named view.
self.assertRaises(NoReverseMatch, reverse, None)
@override_script_prefix('/{{invalid}}/')
def test_prefix_braces(self):
self.assertEqual(
'/%7B%7Binvalid%7D%7D/includes/non_path_include/',
reverse('non_path_include')
)
def test_prefix_parenthesis(self):
# Parentheses are allowed and should not cause errors or be escaped
with override_script_prefix('/bogus)/'):
self.assertEqual(
'/bogus)/includes/non_path_include/',
reverse('non_path_include')
)
with override_script_prefix('/(bogus)/'):
self.assertEqual(
'/(bogus)/includes/non_path_include/',
reverse('non_path_include')
)
@override_script_prefix('/bump%20map/')
def test_prefix_format_char(self):
self.assertEqual(
'/bump%2520map/includes/non_path_include/',
reverse('non_path_include')
)
@override_script_prefix('/%7Eme/')
def test_non_urlsafe_prefix_with_args(self):
# Regression for #20022, adjusted for #24013 because ~ is an unreserved
# character. Tests whether % is escaped.
self.assertEqual('/%257Eme/places/1/', reverse('places', args=[1]))
def test_patterns_reported(self):
# Regression for #17076
try:
# this url exists, but requires an argument
reverse("people", args=[])
except NoReverseMatch as e:
pattern_description = r"1 pattern(s) tried: ['people/(?P<name>\\w+)/$']"
self.assertIn(pattern_description, str(e))
else:
# we can't use .assertRaises, since we want to inspect the
# exception
self.fail("Expected a NoReverseMatch, but none occurred.")
@override_script_prefix('/script:name/')
def test_script_name_escaping(self):
self.assertEqual(
reverse('optional', args=['foo:bar']),
'/script:name/optional/foo:bar/'
)
def test_reverse_returns_unicode(self):
name, expected, args, kwargs = test_data[0]
self.assertIsInstance(
reverse(name, args=args, kwargs=kwargs),
six.text_type
)
class ResolverTests(unittest.TestCase):
@ignore_warnings(category=RemovedInDjango20Warning)
def test_resolver_repr(self):
"""
Test repr of RegexURLResolver, especially when urlconf_name is a list
(#17892).
"""
# Pick a resolver from a namespaced urlconf
resolver = get_resolver('urlpatterns_reverse.namespace_urls')
sub_resolver = resolver.namespace_dict['test-ns1'][1]
self.assertIn('<RegexURLPattern list>', repr(sub_resolver))
def test_reverse_lazy_object_coercion_by_resolve(self):
"""
Verifies lazy object returned by reverse_lazy is coerced to
text by resolve(). Previous to #21043, this would raise a TypeError.
"""
urls = 'urlpatterns_reverse.named_urls'
proxy_url = reverse_lazy('named-url1', urlconf=urls)
resolver = get_resolver(urls)
try:
resolver.resolve(proxy_url)
except TypeError:
self.fail('Failed to coerce lazy object to text')
def test_non_regex(self):
"""
Verifies that we raise a Resolver404 if what we are resolving doesn't
meet the basic requirements of a path to match - i.e., at the very
least, it matches the root pattern '^/'. We must never return None
from resolve, or we will get a TypeError further down the line.
Regression for #10834.
"""
self.assertRaises(Resolver404, resolve, '')
self.assertRaises(Resolver404, resolve, 'a')
self.assertRaises(Resolver404, resolve, '\\')
self.assertRaises(Resolver404, resolve, '.')
def test_404_tried_urls_have_names(self):
"""
Verifies that the list of URLs that come back from a Resolver404
exception contains a list in the right format for printing out in
the DEBUG 404 page with both the patterns and URL names, if available.
"""
urls = 'urlpatterns_reverse.named_urls'
# this list matches the expected URL types and names returned when
# you try to resolve a non-existent URL in the first level of included
# URLs in named_urls.py (e.g., '/included/non-existent-url')
url_types_names = [
[{'type': RegexURLPattern, 'name': 'named-url1'}],
[{'type': RegexURLPattern, 'name': 'named-url2'}],
[{'type': RegexURLPattern, 'name': None}],
[{'type': RegexURLResolver}, {'type': RegexURLPattern, 'name': 'named-url3'}],
[{'type': RegexURLResolver}, {'type': RegexURLPattern, 'name': 'named-url4'}],
[{'type': RegexURLResolver}, {'type': RegexURLPattern, 'name': None}],
[{'type': RegexURLResolver}, {'type': RegexURLResolver}],
]
try:
resolve('/included/non-existent-url', urlconf=urls)
self.fail('resolve did not raise a 404')
except Resolver404 as e:
# make sure we at least matched the root ('/') url resolver:
self.assertIn('tried', e.args[0])
tried = e.args[0]['tried']
self.assertEqual(len(e.args[0]['tried']), len(url_types_names), 'Wrong number of tried URLs returned. Expected %s, got %s.' % (len(url_types_names), len(e.args[0]['tried'])))
for tried, expected in zip(e.args[0]['tried'], url_types_names):
for t, e in zip(tried, expected):
self.assertIsInstance(t, e['type']), str('%s is not an instance of %s') % (t, e['type'])
if 'name' in e:
if not e['name']:
self.assertIsNone(t.name, 'Expected no URL name but found %s.' % t.name)
else:
self.assertEqual(t.name, e['name'], 'Wrong URL name. Expected "%s", got "%s".' % (e['name'], t.name))
@override_settings(ROOT_URLCONF='urlpatterns_reverse.reverse_lazy_urls')
class ReverseLazyTest(TestCase):
def test_redirect_with_lazy_reverse(self):
response = self.client.get('/redirect/')
self.assertRedirects(response, "/redirected_to/", status_code=302)
def test_user_permission_with_lazy_reverse(self):
User.objects.create_user('alfred', 'alfred@example.com', password='testpw')
response = self.client.get('/login_required_view/')
self.assertRedirects(response, "/login/?next=/login_required_view/", status_code=302)
self.client.login(username='alfred', password='testpw')
response = self.client.get('/login_required_view/')
self.assertEqual(response.status_code, 200)
def test_inserting_reverse_lazy_into_string(self):
self.assertEqual(
'Some URL: %s' % reverse_lazy('some-login-page'),
'Some URL: /login/'
)
if six.PY2:
self.assertEqual(
b'Some URL: %s' % reverse_lazy('some-login-page'),
'Some URL: /login/'
)
class ReverseLazySettingsTest(AdminScriptTestCase):
"""
Test that reverse_lazy can be used in settings without causing a circular
import error.
"""
def setUp(self):
self.write_settings('settings.py', extra="""
from django.core.urlresolvers import reverse_lazy
LOGIN_URL = reverse_lazy('login')""")
def tearDown(self):
self.remove_settings('settings.py')
def test_lazy_in_settings(self):
out, err = self.run_manage(['check'])
self.assertNoOutput(err)
@override_settings(ROOT_URLCONF='urlpatterns_reverse.urls')
class ReverseShortcutTests(SimpleTestCase):
def test_redirect_to_object(self):
# We don't really need a model; just something with a get_absolute_url
class FakeObj(object):
def get_absolute_url(self):
return "/hi-there/"
res = redirect(FakeObj())
self.assertIsInstance(res, HttpResponseRedirect)
self.assertEqual(res.url, '/hi-there/')
res = redirect(FakeObj(), permanent=True)
self.assertIsInstance(res, HttpResponsePermanentRedirect)
self.assertEqual(res.url, '/hi-there/')
def test_redirect_to_view_name(self):
res = redirect('hardcoded2')
self.assertEqual(res.url, '/hardcoded/doc.pdf')
res = redirect('places', 1)
self.assertEqual(res.url, '/places/1/')
res = redirect('headlines', year='2008', month='02', day='17')
self.assertEqual(res.url, '/headlines/2008.02.17/')
self.assertRaises(NoReverseMatch, redirect, 'not-a-view')
def test_redirect_to_url(self):
res = redirect('/foo/')
self.assertEqual(res.url, '/foo/')
res = redirect('http://example.com/')
self.assertEqual(res.url, 'http://example.com/')
# Assert that we can redirect using UTF-8 strings
res = redirect('/æøå/abc/')
self.assertEqual(res.url, '/%C3%A6%C3%B8%C3%A5/abc/')
# Assert that no imports are attempted when dealing with a relative path
# (previously, the below would resolve in a UnicodeEncodeError from __import__ )
res = redirect('/æøå.abc/')
self.assertEqual(res.url, '/%C3%A6%C3%B8%C3%A5.abc/')
res = redirect('os.path')
self.assertEqual(res.url, 'os.path')
def test_no_illegal_imports(self):
# modules that are not listed in urlpatterns should not be importable
redirect("urlpatterns_reverse.nonimported_module.view")
self.assertNotIn("urlpatterns_reverse.nonimported_module", sys.modules)
@ignore_warnings(category=RemovedInDjango110Warning)
def test_reverse_by_path_nested(self):
# Views that are added to urlpatterns using include() should be
# reversible by dotted path.
self.assertEqual(reverse('urlpatterns_reverse.views.nested_view'), '/includes/nested_path/')
def test_redirect_view_object(self):
from .views import absolute_kwargs_view
res = redirect(absolute_kwargs_view)
self.assertEqual(res.url, '/absolute_arg_view/')
self.assertRaises(NoReverseMatch, redirect, absolute_kwargs_view, wrong_argument=None)
@override_settings(ROOT_URLCONF='urlpatterns_reverse.namespace_urls')
@ignore_warnings(category=RemovedInDjango20Warning)
class NamespaceTests(SimpleTestCase):
def test_ambiguous_object(self):
"Names deployed via dynamic URL objects that require namespaces can't be resolved"
self.assertRaises(NoReverseMatch, reverse, 'urlobject-view')
self.assertRaises(NoReverseMatch, reverse, 'urlobject-view', args=[37, 42])
self.assertRaises(NoReverseMatch, reverse, 'urlobject-view', kwargs={'arg1': 42, 'arg2': 37})
def test_ambiguous_urlpattern(self):
"Names deployed via dynamic URL objects that require namespaces can't be resolved"
self.assertRaises(NoReverseMatch, reverse, 'inner-nothing')
self.assertRaises(NoReverseMatch, reverse, 'inner-nothing', args=[37, 42])
self.assertRaises(NoReverseMatch, reverse, 'inner-nothing', kwargs={'arg1': 42, 'arg2': 37})
def test_non_existent_namespace(self):
"Non-existent namespaces raise errors"
self.assertRaises(NoReverseMatch, reverse, 'blahblah:urlobject-view')
self.assertRaises(NoReverseMatch, reverse, 'test-ns1:blahblah:urlobject-view')
def test_normal_name(self):
"Normal lookups work as expected"
self.assertEqual('/normal/', reverse('normal-view'))
self.assertEqual('/normal/37/42/', reverse('normal-view', args=[37, 42]))
self.assertEqual('/normal/42/37/', reverse('normal-view', kwargs={'arg1': 42, 'arg2': 37}))
self.assertEqual('/+%5C$*/', reverse('special-view'))
def test_simple_included_name(self):
"Normal lookups work on names included from other patterns"
self.assertEqual('/included/normal/', reverse('inc-normal-view'))
self.assertEqual('/included/normal/37/42/', reverse('inc-normal-view', args=[37, 42]))
self.assertEqual('/included/normal/42/37/', reverse('inc-normal-view', kwargs={'arg1': 42, 'arg2': 37}))
self.assertEqual('/included/+%5C$*/', reverse('inc-special-view'))
def test_namespace_object(self):
"Dynamic URL objects can be found using a namespace"
self.assertEqual('/test1/inner/', reverse('test-ns1:urlobject-view'))
self.assertEqual('/test1/inner/37/42/', reverse('test-ns1:urlobject-view', args=[37, 42]))
self.assertEqual('/test1/inner/42/37/', reverse('test-ns1:urlobject-view', kwargs={'arg1': 42, 'arg2': 37}))
self.assertEqual('/test1/inner/+%5C$*/', reverse('test-ns1:urlobject-special-view'))
def test_app_object(self):
"Dynamic URL objects can return a (pattern, app_name) 2-tuple, and include() can set the namespace"
self.assertEqual('/newapp1/inner/', reverse('new-ns1:urlobject-view'))
self.assertEqual('/newapp1/inner/37/42/', reverse('new-ns1:urlobject-view', args=[37, 42]))
self.assertEqual('/newapp1/inner/42/37/', reverse('new-ns1:urlobject-view', kwargs={'arg1': 42, 'arg2': 37}))
self.assertEqual('/newapp1/inner/+%5C$*/', reverse('new-ns1:urlobject-special-view'))
def test_app_object_default_namespace(self):
"Namespace defaults to app_name when including a (pattern, app_name) 2-tuple"
self.assertEqual('/new-default/inner/', reverse('newapp:urlobject-view'))
self.assertEqual('/new-default/inner/37/42/', reverse('newapp:urlobject-view', args=[37, 42]))
self.assertEqual('/new-default/inner/42/37/', reverse('newapp:urlobject-view', kwargs={'arg1': 42, 'arg2': 37}))
self.assertEqual('/new-default/inner/+%5C$*/', reverse('newapp:urlobject-special-view'))
def test_embedded_namespace_object(self):
"Namespaces can be installed anywhere in the URL pattern tree"
self.assertEqual('/included/test3/inner/', reverse('test-ns3:urlobject-view'))
self.assertEqual('/included/test3/inner/37/42/', reverse('test-ns3:urlobject-view', args=[37, 42]))
self.assertEqual('/included/test3/inner/42/37/', reverse('test-ns3:urlobject-view', kwargs={'arg1': 42, 'arg2': 37}))
self.assertEqual('/included/test3/inner/+%5C$*/', reverse('test-ns3:urlobject-special-view'))
def test_namespace_pattern(self):
"Namespaces can be applied to include()'d urlpatterns"
self.assertEqual('/ns-included1/normal/', reverse('inc-ns1:inc-normal-view'))
self.assertEqual('/ns-included1/normal/37/42/', reverse('inc-ns1:inc-normal-view', args=[37, 42]))
self.assertEqual('/ns-included1/normal/42/37/', reverse('inc-ns1:inc-normal-view', kwargs={'arg1': 42, 'arg2': 37}))
self.assertEqual('/ns-included1/+%5C$*/', reverse('inc-ns1:inc-special-view'))
def test_app_name_pattern(self):
"Namespaces can be applied to include()'d urlpatterns that set an app_name attribute"
self.assertEqual('/app-included1/normal/', reverse('app-ns1:inc-normal-view'))
self.assertEqual('/app-included1/normal/37/42/', reverse('app-ns1:inc-normal-view', args=[37, 42]))
self.assertEqual('/app-included1/normal/42/37/', reverse('app-ns1:inc-normal-view', kwargs={'arg1': 42, 'arg2': 37}))
self.assertEqual('/app-included1/+%5C$*/', reverse('app-ns1:inc-special-view'))
def test_namespace_pattern_with_variable_prefix(self):
"When using an include with namespaces when there is a regex variable in front of it"
self.assertEqual('/ns-outer/42/normal/', reverse('inc-outer:inc-normal-view', kwargs={'outer': 42}))
self.assertEqual('/ns-outer/42/normal/', reverse('inc-outer:inc-normal-view', args=[42]))
self.assertEqual('/ns-outer/42/normal/37/4/', reverse('inc-outer:inc-normal-view', kwargs={'outer': 42, 'arg1': 37, 'arg2': 4}))
self.assertEqual('/ns-outer/42/normal/37/4/', reverse('inc-outer:inc-normal-view', args=[42, 37, 4]))
self.assertEqual('/ns-outer/42/+%5C$*/', reverse('inc-outer:inc-special-view', kwargs={'outer': 42}))
self.assertEqual('/ns-outer/42/+%5C$*/', reverse('inc-outer:inc-special-view', args=[42]))
def test_multiple_namespace_pattern(self):
"Namespaces can be embedded"
self.assertEqual('/ns-included1/test3/inner/', reverse('inc-ns1:test-ns3:urlobject-view'))
self.assertEqual('/ns-included1/test3/inner/37/42/', reverse('inc-ns1:test-ns3:urlobject-view', args=[37, 42]))
self.assertEqual('/ns-included1/test3/inner/42/37/', reverse('inc-ns1:test-ns3:urlobject-view', kwargs={'arg1': 42, 'arg2': 37}))
self.assertEqual('/ns-included1/test3/inner/+%5C$*/', reverse('inc-ns1:test-ns3:urlobject-special-view'))
def test_nested_namespace_pattern(self):
"Namespaces can be nested"
self.assertEqual('/ns-included1/ns-included4/ns-included1/test3/inner/', reverse('inc-ns1:inc-ns4:inc-ns1:test-ns3:urlobject-view'))
self.assertEqual('/ns-included1/ns-included4/ns-included1/test3/inner/37/42/', reverse('inc-ns1:inc-ns4:inc-ns1:test-ns3:urlobject-view', args=[37, 42]))
self.assertEqual('/ns-included1/ns-included4/ns-included1/test3/inner/42/37/', reverse('inc-ns1:inc-ns4:inc-ns1:test-ns3:urlobject-view', kwargs={'arg1': 42, 'arg2': 37}))
self.assertEqual('/ns-included1/ns-included4/ns-included1/test3/inner/+%5C$*/', reverse('inc-ns1:inc-ns4:inc-ns1:test-ns3:urlobject-special-view'))
def test_app_lookup_object(self):
"A default application namespace can be used for lookup"
self.assertEqual('/default/inner/', reverse('testapp:urlobject-view'))
self.assertEqual('/default/inner/37/42/', reverse('testapp:urlobject-view', args=[37, 42]))
self.assertEqual('/default/inner/42/37/', reverse('testapp:urlobject-view', kwargs={'arg1': 42, 'arg2': 37}))
self.assertEqual('/default/inner/+%5C$*/', reverse('testapp:urlobject-special-view'))
def test_app_lookup_object_with_default(self):
"A default application namespace is sensitive to the 'current' app can be used for lookup"
self.assertEqual('/included/test3/inner/', reverse('testapp:urlobject-view', current_app='test-ns3'))
self.assertEqual('/included/test3/inner/37/42/', reverse('testapp:urlobject-view', args=[37, 42], current_app='test-ns3'))
self.assertEqual('/included/test3/inner/42/37/', reverse('testapp:urlobject-view', kwargs={'arg1': 42, 'arg2': 37}, current_app='test-ns3'))
self.assertEqual('/included/test3/inner/+%5C$*/', reverse('testapp:urlobject-special-view', current_app='test-ns3'))
def test_app_lookup_object_without_default(self):
"An application namespace without a default is sensitive to the 'current' app can be used for lookup"
self.assertEqual('/other2/inner/', reverse('nodefault:urlobject-view'))
self.assertEqual('/other2/inner/37/42/', reverse('nodefault:urlobject-view', args=[37, 42]))
self.assertEqual('/other2/inner/42/37/', reverse('nodefault:urlobject-view', kwargs={'arg1': 42, 'arg2': 37}))
self.assertEqual('/other2/inner/+%5C$*/', reverse('nodefault:urlobject-special-view'))
self.assertEqual('/other1/inner/', reverse('nodefault:urlobject-view', current_app='other-ns1'))
self.assertEqual('/other1/inner/37/42/', reverse('nodefault:urlobject-view', args=[37, 42], current_app='other-ns1'))
self.assertEqual('/other1/inner/42/37/', reverse('nodefault:urlobject-view', kwargs={'arg1': 42, 'arg2': 37}, current_app='other-ns1'))
self.assertEqual('/other1/inner/+%5C$*/', reverse('nodefault:urlobject-special-view', current_app='other-ns1'))
def test_special_chars_namespace(self):
self.assertEqual('/+%5C$*/included/normal/', reverse('special:inc-normal-view'))
self.assertEqual('/+%5C$*/included/normal/37/42/', reverse('special:inc-normal-view', args=[37, 42]))
self.assertEqual('/+%5C$*/included/normal/42/37/', reverse('special:inc-normal-view', kwargs={'arg1': 42, 'arg2': 37}))
self.assertEqual('/+%5C$*/included/+%5C$*/', reverse('special:inc-special-view'))
def test_namespaces_with_variables(self):
"Namespace prefixes can capture variables: see #15900"
self.assertEqual('/inc70/', reverse('inc-ns5:inner-nothing', kwargs={'outer': '70'}))
self.assertEqual('/inc78/extra/foobar/', reverse('inc-ns5:inner-extra', kwargs={'outer': '78', 'extra': 'foobar'}))
self.assertEqual('/inc70/', reverse('inc-ns5:inner-nothing', args=['70']))
self.assertEqual('/inc78/extra/foobar/', reverse('inc-ns5:inner-extra', args=['78', 'foobar']))
def test_nested_app_lookup(self):
"A nested current_app should be split in individual namespaces (#24904)"
self.assertEqual('/ns-included1/test4/inner/', reverse('inc-ns1:testapp:urlobject-view'))
self.assertEqual('/ns-included1/test4/inner/37/42/', reverse('inc-ns1:testapp:urlobject-view', args=[37, 42]))
self.assertEqual(
'/ns-included1/test4/inner/42/37/',
reverse('inc-ns1:testapp:urlobject-view', kwargs={'arg1': 42, 'arg2': 37})
)
self.assertEqual('/ns-included1/test4/inner/+%5C$*/', reverse('inc-ns1:testapp:urlobject-special-view'))
self.assertEqual(
'/ns-included1/test3/inner/',
reverse('inc-ns1:testapp:urlobject-view', current_app='inc-ns1:test-ns3')
)
self.assertEqual(
'/ns-included1/test3/inner/37/42/',
reverse('inc-ns1:testapp:urlobject-view', args=[37, 42], current_app='inc-ns1:test-ns3')
)
self.assertEqual(
'/ns-included1/test3/inner/42/37/',
reverse('inc-ns1:testapp:urlobject-view', kwargs={'arg1': 42, 'arg2': 37}, current_app='inc-ns1:test-ns3')
)
self.assertEqual(
'/ns-included1/test3/inner/+%5C$*/',
reverse('inc-ns1:testapp:urlobject-special-view', current_app='inc-ns1:test-ns3')
)
def test_current_app_no_partial_match(self):
"current_app should either match the whole path or shouldn't be used"
self.assertEqual(
'/ns-included1/test4/inner/',
reverse('inc-ns1:testapp:urlobject-view', current_app='non-existant:test-ns3')
)
self.assertEqual(
'/ns-included1/test4/inner/37/42/',
reverse('inc-ns1:testapp:urlobject-view', args=[37, 42], current_app='non-existant:test-ns3')
)
self.assertEqual(
'/ns-included1/test4/inner/42/37/',
reverse('inc-ns1:testapp:urlobject-view', kwargs={'arg1': 42, 'arg2': 37},
current_app='non-existant:test-ns3')
)
self.assertEqual(
'/ns-included1/test4/inner/+%5C$*/',
reverse('inc-ns1:testapp:urlobject-special-view', current_app='non-existant:test-ns3')
)
@override_settings(ROOT_URLCONF=urlconf_outer.__name__)
class RequestURLconfTests(SimpleTestCase):
def test_urlconf(self):
response = self.client.get('/test/me/')
self.assertEqual(response.status_code, 200)
self.assertEqual(response.content, b'outer:/test/me/,inner:/inner_urlconf/second_test/')
response = self.client.get('/inner_urlconf/second_test/')
self.assertEqual(response.status_code, 200)
response = self.client.get('/second_test/')
self.assertEqual(response.status_code, 404)
@override_settings(
MIDDLEWARE_CLASSES=[
'%s.ChangeURLconfMiddleware' % middleware.__name__,
]
)
def test_urlconf_overridden(self):
response = self.client.get('/test/me/')
self.assertEqual(response.status_code, 404)
response = self.client.get('/inner_urlconf/second_test/')
self.assertEqual(response.status_code, 404)
response = self.client.get('/second_test/')
self.assertEqual(response.status_code, 200)
self.assertEqual(response.content, b'outer:,inner:/second_test/')
@override_settings(
MIDDLEWARE_CLASSES=[
'%s.NullChangeURLconfMiddleware' % middleware.__name__,
]
)
def test_urlconf_overridden_with_null(self):
"""
Overriding request.urlconf with None will fall back to the default
URLconf.
"""
response = self.client.get('/test/me/')
self.assertEqual(response.status_code, 200)
self.assertEqual(response.content, b'outer:/test/me/,inner:/inner_urlconf/second_test/')
response = self.client.get('/inner_urlconf/second_test/')
self.assertEqual(response.status_code, 200)
response = self.client.get('/second_test/')
self.assertEqual(response.status_code, 404)
@override_settings(
MIDDLEWARE_CLASSES=[
'%s.ChangeURLconfMiddleware' % middleware.__name__,
'%s.ReverseInnerInResponseMiddleware' % middleware.__name__,
]
)
def test_reverse_inner_in_response_middleware(self):
"""
Test reversing an URL from the *overridden* URLconf from inside
a response middleware.
"""
response = self.client.get('/second_test/')
self.assertEqual(response.status_code, 200)
self.assertEqual(response.content, b'/second_test/')
@override_settings(
MIDDLEWARE_CLASSES=[
'%s.ChangeURLconfMiddleware' % middleware.__name__,
'%s.ReverseOuterInResponseMiddleware' % middleware.__name__,
]
)
def test_reverse_outer_in_response_middleware(self):
"""
Test reversing an URL from the *default* URLconf from inside
a response middleware.
"""
message = "Reverse for 'outer' with arguments '()' and keyword arguments '{}' not found."
with self.assertRaisesMessage(NoReverseMatch, message):
self.client.get('/second_test/')
@override_settings(
MIDDLEWARE_CLASSES=[
'%s.ChangeURLconfMiddleware' % middleware.__name__,
'%s.ReverseInnerInStreaming' % middleware.__name__,
]
)
def test_reverse_inner_in_streaming(self):
"""
Test reversing an URL from the *overridden* URLconf from inside
a streaming response.
"""
response = self.client.get('/second_test/')
self.assertEqual(response.status_code, 200)
self.assertEqual(b''.join(response), b'/second_test/')
@override_settings(
MIDDLEWARE_CLASSES=[
'%s.ChangeURLconfMiddleware' % middleware.__name__,
'%s.ReverseOuterInStreaming' % middleware.__name__,
]
)
def test_reverse_outer_in_streaming(self):
"""
Test reversing an URL from the *default* URLconf from inside
a streaming response.
"""
message = "Reverse for 'outer' with arguments '()' and keyword arguments '{}' not found."
with self.assertRaisesMessage(NoReverseMatch, message):
self.client.get('/second_test/')
b''.join(self.client.get('/second_test/'))
class ErrorHandlerResolutionTests(SimpleTestCase):
"""Tests for handler400, handler404 and handler500"""
def setUp(self):
urlconf = 'urlpatterns_reverse.urls_error_handlers'
urlconf_callables = 'urlpatterns_reverse.urls_error_handlers_callables'
self.resolver = RegexURLResolver(r'^$', urlconf)
self.callable_resolver = RegexURLResolver(r'^$', urlconf_callables)
def test_named_handlers(self):
handler = (empty_view, {})
self.assertEqual(self.resolver.resolve_error_handler(400), handler)
self.assertEqual(self.resolver.resolve_error_handler(404), handler)
self.assertEqual(self.resolver.resolve_error_handler(500), handler)
def test_callable_handers(self):
handler = (empty_view, {})
self.assertEqual(self.callable_resolver.resolve_error_handler(400), handler)
self.assertEqual(self.callable_resolver.resolve_error_handler(404), handler)
self.assertEqual(self.callable_resolver.resolve_error_handler(500), handler)
@override_settings(ROOT_URLCONF='urlpatterns_reverse.urls_without_full_import')
class DefaultErrorHandlerTests(SimpleTestCase):
def test_default_handler(self):
"If the urls.py doesn't specify handlers, the defaults are used"
try:
response = self.client.get('/test/')
self.assertEqual(response.status_code, 404)
except AttributeError:
self.fail("Shouldn't get an AttributeError due to undefined 404 handler")
try:
self.assertRaises(ValueError, self.client.get, '/bad_view/')
except AttributeError:
self.fail("Shouldn't get an AttributeError due to undefined 500 handler")
@override_settings(ROOT_URLCONF=None)
class NoRootUrlConfTests(SimpleTestCase):
"""Tests for handler404 and handler500 if urlconf is None"""
def test_no_handler_exception(self):
self.assertRaises(ImproperlyConfigured, self.client.get, '/test/me/')
@override_settings(ROOT_URLCONF='urlpatterns_reverse.namespace_urls')
class ResolverMatchTests(SimpleTestCase):
@ignore_warnings(category=RemovedInDjango20Warning)
def test_urlpattern_resolve(self):
for path, url_name, app_name, namespace, view_name, func, args, kwargs in resolve_test_data:
# Test legacy support for extracting "function, args, kwargs"
match_func, match_args, match_kwargs = resolve(path)
self.assertEqual(match_func, func)
self.assertEqual(match_args, args)
self.assertEqual(match_kwargs, kwargs)
# Test ResolverMatch capabilities.
match = resolve(path)
self.assertEqual(match.__class__, ResolverMatch)
self.assertEqual(match.url_name, url_name)
self.assertEqual(match.app_name, app_name)
self.assertEqual(match.namespace, namespace)
self.assertEqual(match.view_name, view_name)
self.assertEqual(match.func, func)
self.assertEqual(match.args, args)
self.assertEqual(match.kwargs, kwargs)
# ... and for legacy purposes:
self.assertEqual(match[0], func)
self.assertEqual(match[1], args)
self.assertEqual(match[2], kwargs)
@ignore_warnings(category=RemovedInDjango20Warning)
def test_resolver_match_on_request(self):
response = self.client.get('/resolver_match/')
resolver_match = response.resolver_match
self.assertEqual(resolver_match.url_name, 'test-resolver-match')
def test_resolver_match_on_request_before_resolution(self):
request = HttpRequest()
self.assertIsNone(request.resolver_match)
@override_settings(ROOT_URLCONF='urlpatterns_reverse.erroneous_urls')
class ErroneousViewTests(SimpleTestCase):
def test_erroneous_resolve(self):
self.assertRaises(ImportError, self.client.get, '/erroneous_inner/')
self.assertRaises(ImportError, self.client.get, '/erroneous_outer/')
self.assertRaises(ViewDoesNotExist, self.client.get, '/missing_inner/')
self.assertRaises(ViewDoesNotExist, self.client.get, '/missing_outer/')
self.assertRaises(ViewDoesNotExist, self.client.get, '/uncallable-dotted/')
self.assertRaises(ViewDoesNotExist, self.client.get, '/uncallable-object/')
# Regression test for #21157
self.assertRaises(ImportError, self.client.get, '/erroneous_unqualified/')
def test_erroneous_reverse(self):
"""
Ensure that a useful exception is raised when a regex is invalid in the
URLConf (#6170).
"""
# The regex error will be hit before NoReverseMatch can be raised
self.assertRaises(ImproperlyConfigured, reverse, 'whatever blah blah')
class ViewLoadingTests(SimpleTestCase):
def test_view_loading(self):
self.assertEqual(get_callable('urlpatterns_reverse.views.empty_view'), empty_view)
# passing a callable should return the callable
self.assertEqual(get_callable(empty_view), empty_view)
def test_exceptions(self):
# A missing view (identified by an AttributeError) should raise
# ViewDoesNotExist, ...
with six.assertRaisesRegex(self, ViewDoesNotExist, ".*View does not exist in.*"):
get_callable('urlpatterns_reverse.views.i_should_not_exist')
# ... but if the AttributeError is caused by something else don't
# swallow it.
with self.assertRaises(AttributeError):
get_callable('urlpatterns_reverse.views_broken.i_am_broken')
class IncludeTests(SimpleTestCase):
url_patterns = [
url(r'^inner/$', views.empty_view, name='urlobject-view'),
url(r'^inner/(?P<arg1>[0-9]+)/(?P<arg2>[0-9]+)/$', views.empty_view, name='urlobject-view'),
url(r'^inner/\+\\\$\*/$', views.empty_view, name='urlobject-special-view'),
]
app_urls = URLObject('inc-app')
def test_include_app_name_but_no_namespace(self):
msg = "Must specify a namespace if specifying app_name."
with self.assertRaisesMessage(ValueError, msg):
include(self.url_patterns, app_name='bar')
def test_include_urls(self):
self.assertEqual(include(self.url_patterns), (self.url_patterns, None, None))
@ignore_warnings(category=RemovedInDjango20Warning)
def test_include_namespace(self):
# no app_name -> deprecated
self.assertEqual(include(self.url_patterns, 'namespace'), (self.url_patterns, None, 'namespace'))
@ignore_warnings(category=RemovedInDjango20Warning)
def test_include_namespace_app_name(self):
# app_name argument to include -> deprecated
self.assertEqual(
include(self.url_patterns, 'namespace', 'app_name'),
(self.url_patterns, 'app_name', 'namespace')
)
@ignore_warnings(category=RemovedInDjango20Warning)
def test_include_3_tuple(self):
# 3-tuple -> deprecated
self.assertEqual(
include((self.url_patterns, 'app_name', 'namespace')),
(self.url_patterns, 'app_name', 'namespace')
)
def test_include_2_tuple(self):
self.assertEqual(
include((self.url_patterns, 'app_name')),
(self.url_patterns, 'app_name', 'app_name')
)
def test_include_2_tuple_namespace(self):
self.assertEqual(
include((self.url_patterns, 'app_name'), namespace='namespace'),
(self.url_patterns, 'app_name', 'namespace')
)
def test_include_app_name(self):
self.assertEqual(
include(self.app_urls),
(self.app_urls, 'inc-app', 'inc-app')
)
def test_include_app_name_namespace(self):
self.assertEqual(
include(self.app_urls, 'namespace'),
(self.app_urls, 'inc-app', 'namespace')
)
@override_settings(ROOT_URLCONF='urlpatterns_reverse.urls')
class LookaheadTests(SimpleTestCase):
def test_valid_resolve(self):
test_urls = [
'/lookahead-/a-city/',
'/lookbehind-/a-city/',
'/lookahead+/a-city/',
'/lookbehind+/a-city/',
]
for test_url in test_urls:
match = resolve(test_url)
self.assertEqual(match.kwargs, {'city': 'a-city'})
def test_invalid_resolve(self):
test_urls = [
'/lookahead-/not-a-city/',
'/lookbehind-/not-a-city/',
'/lookahead+/other-city/',
'/lookbehind+/other-city/',
]
for test_url in test_urls:
with self.assertRaises(Resolver404):
resolve(test_url)
def test_valid_reverse(self):
url = reverse('lookahead-positive', kwargs={'city': 'a-city'})
self.assertEqual(url, '/lookahead+/a-city/')
url = reverse('lookahead-negative', kwargs={'city': 'a-city'})
self.assertEqual(url, '/lookahead-/a-city/')
url = reverse('lookbehind-positive', kwargs={'city': 'a-city'})
self.assertEqual(url, '/lookbehind+/a-city/')
url = reverse('lookbehind-negative', kwargs={'city': 'a-city'})
self.assertEqual(url, '/lookbehind-/a-city/')
def test_invalid_reverse(self):
with self.assertRaises(NoReverseMatch):
reverse('lookahead-positive', kwargs={'city': 'other-city'})
with self.assertRaises(NoReverseMatch):
reverse('lookahead-negative', kwargs={'city': 'not-a-city'})
with self.assertRaises(NoReverseMatch):
reverse('lookbehind-positive', kwargs={'city': 'other-city'})
with self.assertRaises(NoReverseMatch):
reverse('lookbehind-negative', kwargs={'city': 'not-a-city'})