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281 lines
12 KiB
Python
281 lines
12 KiB
Python
import uuid
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from django.core.exceptions import ImproperlyConfigured
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from django.test import SimpleTestCase
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from django.test.utils import override_settings
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from django.urls import Resolver404, path, resolve, reverse
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from .converters import DynamicConverter
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from .views import empty_view
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included_kwargs = {'base': b'hello', 'value': b'world'}
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converter_test_data = (
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# ('url', ('url_name', 'app_name', {kwargs})),
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# aGVsbG8= is 'hello' encoded in base64.
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('/base64/aGVsbG8=/', ('base64', '', {'value': b'hello'})),
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('/base64/aGVsbG8=/subpatterns/d29ybGQ=/', ('subpattern-base64', '', included_kwargs)),
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('/base64/aGVsbG8=/namespaced/d29ybGQ=/', ('subpattern-base64', 'namespaced-base64', included_kwargs)),
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)
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@override_settings(ROOT_URLCONF='urlpatterns.path_urls')
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class SimplifiedURLTests(SimpleTestCase):
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def test_path_lookup_without_parameters(self):
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match = resolve('/articles/2003/')
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self.assertEqual(match.url_name, 'articles-2003')
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self.assertEqual(match.args, ())
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self.assertEqual(match.kwargs, {})
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self.assertEqual(match.route, 'articles/2003/')
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def test_path_lookup_with_typed_parameters(self):
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match = resolve('/articles/2015/')
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self.assertEqual(match.url_name, 'articles-year')
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self.assertEqual(match.args, ())
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self.assertEqual(match.kwargs, {'year': 2015})
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self.assertEqual(match.route, 'articles/<int:year>/')
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def test_path_lookup_with_multiple_parameters(self):
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match = resolve('/articles/2015/04/12/')
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self.assertEqual(match.url_name, 'articles-year-month-day')
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self.assertEqual(match.args, ())
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self.assertEqual(match.kwargs, {'year': 2015, 'month': 4, 'day': 12})
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self.assertEqual(match.route, 'articles/<int:year>/<int:month>/<int:day>/')
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def test_two_variable_at_start_of_path_pattern(self):
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match = resolve('/en/foo/')
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self.assertEqual(match.url_name, 'lang-and-path')
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self.assertEqual(match.kwargs, {'lang': 'en', 'url': 'foo'})
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self.assertEqual(match.route, '<lang>/<path:url>/')
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def test_re_path(self):
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match = resolve('/regex/1/')
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self.assertEqual(match.url_name, 'regex')
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self.assertEqual(match.kwargs, {'pk': '1'})
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self.assertEqual(match.route, '^regex/(?P<pk>[0-9]+)/$')
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def test_re_path_with_optional_parameter(self):
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for url, kwargs in (
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('/regex_optional/1/2/', {'arg1': '1', 'arg2': '2'}),
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('/regex_optional/1/', {'arg1': '1'}),
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):
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with self.subTest(url=url):
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match = resolve(url)
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self.assertEqual(match.url_name, 'regex_optional')
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self.assertEqual(match.kwargs, kwargs)
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self.assertEqual(
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match.route,
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r'^regex_optional/(?P<arg1>\d+)/(?:(?P<arg2>\d+)/)?',
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)
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def test_re_path_with_missing_optional_parameter(self):
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match = resolve('/regex_only_optional/')
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self.assertEqual(match.url_name, 'regex_only_optional')
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self.assertEqual(match.kwargs, {})
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self.assertEqual(match.args, ())
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self.assertEqual(
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match.route,
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r'^regex_only_optional/(?:(?P<arg1>\d+)/)?',
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)
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def test_path_lookup_with_inclusion(self):
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match = resolve('/included_urls/extra/something/')
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self.assertEqual(match.url_name, 'inner-extra')
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self.assertEqual(match.route, 'included_urls/extra/<extra>/')
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def test_path_lookup_with_empty_string_inclusion(self):
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match = resolve('/more/99/')
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self.assertEqual(match.url_name, 'inner-more')
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self.assertEqual(match.route, r'^more/(?P<extra>\w+)/$')
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def test_path_lookup_with_double_inclusion(self):
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match = resolve('/included_urls/more/some_value/')
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self.assertEqual(match.url_name, 'inner-more')
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self.assertEqual(match.route, r'included_urls/more/(?P<extra>\w+)/$')
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def test_path_reverse_without_parameter(self):
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url = reverse('articles-2003')
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self.assertEqual(url, '/articles/2003/')
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def test_path_reverse_with_parameter(self):
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url = reverse('articles-year-month-day', kwargs={'year': 2015, 'month': 4, 'day': 12})
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self.assertEqual(url, '/articles/2015/4/12/')
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@override_settings(ROOT_URLCONF='urlpatterns.path_base64_urls')
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def test_converter_resolve(self):
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for url, (url_name, app_name, kwargs) in converter_test_data:
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with self.subTest(url=url):
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match = resolve(url)
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self.assertEqual(match.url_name, url_name)
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self.assertEqual(match.app_name, app_name)
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self.assertEqual(match.kwargs, kwargs)
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@override_settings(ROOT_URLCONF='urlpatterns.path_base64_urls')
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def test_converter_reverse(self):
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for expected, (url_name, app_name, kwargs) in converter_test_data:
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if app_name:
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url_name = '%s:%s' % (app_name, url_name)
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with self.subTest(url=url_name):
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url = reverse(url_name, kwargs=kwargs)
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self.assertEqual(url, expected)
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@override_settings(ROOT_URLCONF='urlpatterns.path_base64_urls')
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def test_converter_reverse_with_second_layer_instance_namespace(self):
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kwargs = included_kwargs.copy()
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kwargs['last_value'] = b'world'
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url = reverse('instance-ns-base64:subsubpattern-base64', kwargs=kwargs)
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self.assertEqual(url, '/base64/aGVsbG8=/subpatterns/d29ybGQ=/d29ybGQ=/')
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def test_path_inclusion_is_matchable(self):
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match = resolve('/included_urls/extra/something/')
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self.assertEqual(match.url_name, 'inner-extra')
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self.assertEqual(match.kwargs, {'extra': 'something'})
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def test_path_inclusion_is_reversible(self):
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url = reverse('inner-extra', kwargs={'extra': 'something'})
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self.assertEqual(url, '/included_urls/extra/something/')
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def test_invalid_converter(self):
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msg = "URL route 'foo/<nonexistent:var>/' uses invalid converter 'nonexistent'."
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with self.assertRaisesMessage(ImproperlyConfigured, msg):
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path('foo/<nonexistent:var>/', empty_view)
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def test_space_in_route(self):
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msg = "URL route 'space/<int: num>' cannot contain whitespace."
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with self.assertRaisesMessage(ImproperlyConfigured, msg):
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path('space/<int: num>', empty_view)
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@override_settings(ROOT_URLCONF='urlpatterns.converter_urls')
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class ConverterTests(SimpleTestCase):
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def test_matching_urls(self):
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def no_converter(x):
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return x
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test_data = (
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('int', {'0', '1', '01', 1234567890}, int),
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('str', {'abcxyz'}, no_converter),
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('path', {'allows.ANY*characters'}, no_converter),
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('slug', {'abcxyz-ABCXYZ_01234567890'}, no_converter),
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('uuid', {'39da9369-838e-4750-91a5-f7805cd82839'}, uuid.UUID),
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)
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for url_name, url_suffixes, converter in test_data:
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for url_suffix in url_suffixes:
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url = '/%s/%s/' % (url_name, url_suffix)
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with self.subTest(url=url):
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match = resolve(url)
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self.assertEqual(match.url_name, url_name)
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self.assertEqual(match.kwargs, {url_name: converter(url_suffix)})
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# reverse() works with string parameters.
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string_kwargs = {url_name: url_suffix}
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self.assertEqual(reverse(url_name, kwargs=string_kwargs), url)
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# reverse() also works with native types (int, UUID, etc.).
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if converter is not no_converter:
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# The converted value might be different for int (a
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# leading zero is lost in the conversion).
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converted_value = match.kwargs[url_name]
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converted_url = '/%s/%s/' % (url_name, converted_value)
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self.assertEqual(reverse(url_name, kwargs={url_name: converted_value}), converted_url)
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def test_nonmatching_urls(self):
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test_data = (
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('int', {'-1', 'letters'}),
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('str', {'', '/'}),
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('path', {''}),
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('slug', {'', 'stars*notallowed'}),
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('uuid', {
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'',
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'9da9369-838e-4750-91a5-f7805cd82839',
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'39da9369-838-4750-91a5-f7805cd82839',
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'39da9369-838e-475-91a5-f7805cd82839',
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'39da9369-838e-4750-91a-f7805cd82839',
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'39da9369-838e-4750-91a5-f7805cd8283',
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}),
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)
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for url_name, url_suffixes in test_data:
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for url_suffix in url_suffixes:
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url = '/%s/%s/' % (url_name, url_suffix)
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with self.subTest(url=url), self.assertRaises(Resolver404):
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resolve(url)
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@override_settings(ROOT_URLCONF='urlpatterns.path_same_name_urls')
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class SameNameTests(SimpleTestCase):
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def test_matching_urls_same_name(self):
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tests = [
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('number_of_args', [
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([], {}, '0/'),
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([1], {}, '1/1/'),
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]),
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('kwargs_names', [
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([], {'a': 1}, 'a/1/'),
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([], {'b': 1}, 'b/1/'),
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]),
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('converter', [
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(['a/b'], {}, 'path/a/b/'),
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(['a b'], {}, 'str/a%20b/'),
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(['a-b'], {}, 'slug/a-b/'),
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(['2'], {}, 'int/2/'),
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(
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['39da9369-838e-4750-91a5-f7805cd82839'],
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{},
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'uuid/39da9369-838e-4750-91a5-f7805cd82839/'
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),
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]),
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('regex', [
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(['ABC'], {}, 'uppercase/ABC/'),
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(['abc'], {}, 'lowercase/abc/'),
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]),
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]
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for url_name, cases in tests:
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for args, kwargs, url_suffix in cases:
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expected_url = '/%s/%s' % (url_name, url_suffix)
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with self.subTest(url=expected_url):
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self.assertEqual(
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reverse(url_name, args=args, kwargs=kwargs),
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expected_url,
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)
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class ParameterRestrictionTests(SimpleTestCase):
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def test_non_identifier_parameter_name_causes_exception(self):
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msg = (
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"URL route 'hello/<int:1>/' uses parameter name '1' which isn't "
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"a valid Python identifier."
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)
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with self.assertRaisesMessage(ImproperlyConfigured, msg):
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path(r'hello/<int:1>/', lambda r: None)
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def test_allows_non_ascii_but_valid_identifiers(self):
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# \u0394 is "GREEK CAPITAL LETTER DELTA", a valid identifier.
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p = path('hello/<str:\u0394>/', lambda r: None)
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match = p.resolve('hello/1/')
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self.assertEqual(match.kwargs, {'\u0394': '1'})
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@override_settings(ROOT_URLCONF='urlpatterns.path_dynamic_urls')
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class ConversionExceptionTests(SimpleTestCase):
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"""How are errors in Converter.to_python() and to_url() handled?"""
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def test_resolve_value_error_means_no_match(self):
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@DynamicConverter.register_to_python
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def raises_value_error(value):
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raise ValueError()
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with self.assertRaises(Resolver404):
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resolve('/dynamic/abc/')
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def test_resolve_type_error_propagates(self):
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@DynamicConverter.register_to_python
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def raises_type_error(value):
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raise TypeError('This type error propagates.')
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with self.assertRaisesMessage(TypeError, 'This type error propagates.'):
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resolve('/dynamic/abc/')
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def test_reverse_value_error_propagates(self):
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@DynamicConverter.register_to_url
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def raises_value_error(value):
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raise ValueError('This value error propagates.')
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with self.assertRaisesMessage(ValueError, 'This value error propagates.'):
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reverse('dynamic', kwargs={'value': object()})
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