mirror of
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418 lines
17 KiB
Python
418 lines
17 KiB
Python
import string
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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 NoReverseMatch, Resolver404, path, re_path, resolve, reverse
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from django.views import View
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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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(
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"/base64/aGVsbG8=/subpatterns/d29ybGQ=/",
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("subpattern-base64", "", included_kwargs),
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),
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(
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"/base64/aGVsbG8=/namespaced/d29ybGQ=/",
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("subpattern-base64", "namespaced-base64", included_kwargs),
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),
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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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self.assertEqual(match.captured_kwargs, {})
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self.assertEqual(match.extra_kwargs, {})
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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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self.assertEqual(match.captured_kwargs, {"year": 2015})
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self.assertEqual(match.extra_kwargs, {})
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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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self.assertEqual(match.captured_kwargs, {"year": 2015, "month": 4, "day": 12})
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self.assertEqual(match.extra_kwargs, {})
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def test_path_lookup_with_multiple_parameters_and_extra_kwarg(self):
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match = resolve("/books/2015/04/12/")
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self.assertEqual(match.url_name, "books-year-month-day")
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self.assertEqual(match.args, ())
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self.assertEqual(
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match.kwargs, {"year": 2015, "month": 4, "day": 12, "extra": True}
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)
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self.assertEqual(match.route, "books/<int:year>/<int:month>/<int:day>/")
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self.assertEqual(match.captured_kwargs, {"year": 2015, "month": 4, "day": 12})
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self.assertEqual(match.extra_kwargs, {"extra": True})
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def test_path_lookup_with_extra_kwarg(self):
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match = resolve("/books/2007/")
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self.assertEqual(match.url_name, "books-2007")
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self.assertEqual(match.args, ())
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self.assertEqual(match.kwargs, {"extra": True})
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self.assertEqual(match.route, "books/2007/")
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self.assertEqual(match.captured_kwargs, {})
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self.assertEqual(match.extra_kwargs, {"extra": True})
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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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self.assertEqual(match.captured_kwargs, {"lang": "en", "url": "foo"})
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self.assertEqual(match.extra_kwargs, {})
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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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self.assertEqual(match.captured_kwargs, {"pk": "1"})
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self.assertEqual(match.extra_kwargs, {})
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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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self.assertEqual(match.captured_kwargs, kwargs)
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self.assertEqual(match.extra_kwargs, {})
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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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self.assertEqual(match.captured_kwargs, {})
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self.assertEqual(match.extra_kwargs, {})
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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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self.assertEqual(match.kwargs, {"extra": "99", "sub-extra": True})
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self.assertEqual(match.captured_kwargs, {"extra": "99"})
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self.assertEqual(match.extra_kwargs, {"sub-extra": True})
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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(
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"articles-year-month-day", kwargs={"year": 2015, "month": 4, "day": 12}
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)
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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_kwargs(self):
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msg = "kwargs argument must be a dict, but got str."
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with self.assertRaisesMessage(TypeError, msg):
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path("hello/", empty_view, "name")
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with self.assertRaisesMessage(TypeError, msg):
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re_path("^hello/$", empty_view, "name")
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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_invalid_view(self):
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msg = "view must be a callable or a list/tuple in the case of include()."
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with self.assertRaisesMessage(TypeError, msg):
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path("articles/", "invalid_view")
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def test_invalid_view_instance(self):
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class EmptyCBV(View):
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pass
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msg = "view must be a callable, pass EmptyCBV.as_view(), not EmptyCBV()."
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with self.assertRaisesMessage(TypeError, msg):
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path("foo", EmptyCBV())
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def test_whitespace_in_route(self):
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msg = (
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"URL route 'space/<int:num>/extra/<str:%stest>' cannot contain "
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"whitespace in angle brackets <…>"
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)
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for whitespace in string.whitespace:
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with self.subTest(repr(whitespace)):
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with self.assertRaisesMessage(ImproperlyConfigured, msg % whitespace):
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path("space/<int:num>/extra/<str:%stest>" % whitespace, empty_view)
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# Whitespaces are valid in paths.
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p = path("space%s/<int:num>/" % string.whitespace, empty_view)
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match = p.resolve("space%s/1/" % string.whitespace)
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self.assertEqual(match.kwargs, {"num": 1})
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def test_path_trailing_newlines(self):
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tests = [
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"/articles/2003/\n",
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"/articles/2010/\n",
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"/en/foo/\n",
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"/included_urls/extra/\n",
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"/regex/1/\n",
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"/users/1/\n",
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]
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for url in tests:
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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.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(
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reverse(url_name, kwargs={url_name: converted_value}),
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converted_url,
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)
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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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(
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"uuid",
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{
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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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)
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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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@DynamicConverter.register_to_url
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def requires_tiny_int(value):
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if value > 5:
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raise ValueError
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return value
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tests = [
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(
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"number_of_args",
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[
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([], {}, "0/"),
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([1], {}, "1/1/"),
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],
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),
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(
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"kwargs_names",
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[
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([], {"a": 1}, "a/1/"),
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([], {"b": 1}, "b/1/"),
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],
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),
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(
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"converter",
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[
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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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),
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(
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"regex",
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[
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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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(
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"converter_to_url",
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[
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([6], {}, "int/6/"),
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([1], {}, "tiny_int/1/"),
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],
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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_integer_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_non_identifier_parameter_name_causes_exception(self):
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msg = (
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"URL route 'b/<int:book.id>/' uses parameter name 'book.id' which "
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"isn't a valid Python identifier."
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)
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with self.assertRaisesMessage(ImproperlyConfigured, msg):
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path(r"b/<int:book.id>/", 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_means_no_match(self):
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@DynamicConverter.register_to_url
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def raises_value_error(value):
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raise ValueError
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with self.assertRaises(NoReverseMatch):
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reverse("dynamic", kwargs={"value": object()})
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def test_reverse_type_error_propagates(self):
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@DynamicConverter.register_to_url
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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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reverse("dynamic", kwargs={"value": object()})
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