url urlname appname kwargs agvsbg8 is hello encoded in base64 whitespaces are valid in paths reverse works with string parameters reverse also works with native types int uuid etc the converted value might be different for int a leading zero is lost in the conversion u0394 is greek capital letter delta a valid identifier how are errors in converter topython and tourl handled def testresolvevalueerrormeansnomatchself dynamicconverter registertopython def raisesvalueerrorvalue raise valueerror with self assertraisesresolver404 resolvedynamicabc def testresolvetypeerrorpropagatesself dynamicconverter registertopython def raisestypeerrorvalue raise typeerrorthis type error propagates with self assertraisesmessagetypeerror this type error propagates resolvedynamicabc def testreversevalueerrormeansnomatchself dynamicconverter registertourl def raisesvalueerrorvalue raise valueerror with self assertraisesnoreversematch reversedynamic kwargsvalue object def testreversetypeerrorpropagatesself dynamicconverter registertourl def raisestypeerrorvalue raise typeerrorthis type error propagates with self assertraisesmessagetypeerror this type error propagates reversedynamic kwargsvalue object url url_name app_name kwargs agvsbg8 is hello encoded in base64 whitespaces are valid in paths reverse works with string parameters reverse also works with native types int uuid etc the converted value might be different for int a leading zero is lost in the conversion u0394 is greek capital letter delta a valid identifier how are errors in converter to_python and to_url handled
import string
import uuid

from django.core.exceptions import ImproperlyConfigured
from django.test import SimpleTestCase
from django.test.utils import override_settings
from django.urls import NoReverseMatch, Resolver404, path, re_path, resolve, reverse
from django.views import View

from .converters import DynamicConverter
from .views import empty_view

included_kwargs = {"base": b"hello", "value": b"world"}
converter_test_data = (
    
    
    ("/base64/aGVsbG8=/", ("base64", "", {"value": b"hello"})),
    (
        "/base64/aGVsbG8=/subpatterns/d29ybGQ=/",
        ("subpattern-base64", "", included_kwargs),
    ),
    (
        "/base64/aGVsbG8=/namespaced/d29ybGQ=/",
        ("subpattern-base64", "namespaced-base64", included_kwargs),
    ),
)


@override_settings(ROOT_URLCONF="urlpatterns.path_urls")
class SimplifiedURLTests(SimpleTestCase):
    def test_path_lookup_without_parameters(self):
        match = resolve("/articles/2003/")
        self.assertEqual(match.url_name, "articles-2003")
        self.assertEqual(match.args, ())
        self.assertEqual(match.kwargs, {})
        self.assertEqual(match.route, "articles/2003/")
        self.assertEqual(match.captured_kwargs, {})
        self.assertEqual(match.extra_kwargs, {})

    def test_path_lookup_with_typed_parameters(self):
        match = resolve("/articles/2015/")
        self.assertEqual(match.url_name, "articles-year")
        self.assertEqual(match.args, ())
        self.assertEqual(match.kwargs, {"year": 2015})
        self.assertEqual(match.route, "articles/<int:year>/")
        self.assertEqual(match.captured_kwargs, {"year": 2015})
        self.assertEqual(match.extra_kwargs, {})

    def test_path_lookup_with_multiple_parameters(self):
        match = resolve("/articles/2015/04/12/")
        self.assertEqual(match.url_name, "articles-year-month-day")
        self.assertEqual(match.args, ())
        self.assertEqual(match.kwargs, {"year": 2015, "month": 4, "day": 12})
        self.assertEqual(match.route, "articles/<int:year>/<int:month>/<int:day>/")
        self.assertEqual(match.captured_kwargs, {"year": 2015, "month": 4, "day": 12})
        self.assertEqual(match.extra_kwargs, {})

    def test_path_lookup_with_multiple_parameters_and_extra_kwarg(self):
        match = resolve("/books/2015/04/12/")
        self.assertEqual(match.url_name, "books-year-month-day")
        self.assertEqual(match.args, ())
        self.assertEqual(
            match.kwargs, {"year": 2015, "month": 4, "day": 12, "extra": True}
        )
        self.assertEqual(match.route, "books/<int:year>/<int:month>/<int:day>/")
        self.assertEqual(match.captured_kwargs, {"year": 2015, "month": 4, "day": 12})
        self.assertEqual(match.extra_kwargs, {"extra": True})

    def test_path_lookup_with_extra_kwarg(self):
        match = resolve("/books/2007/")
        self.assertEqual(match.url_name, "books-2007")
        self.assertEqual(match.args, ())
        self.assertEqual(match.kwargs, {"extra": True})
        self.assertEqual(match.route, "books/2007/")
        self.assertEqual(match.captured_kwargs, {})
        self.assertEqual(match.extra_kwargs, {"extra": True})

    def test_two_variable_at_start_of_path_pattern(self):
        match = resolve("/en/foo/")
        self.assertEqual(match.url_name, "lang-and-path")
        self.assertEqual(match.kwargs, {"lang": "en", "url": "foo"})
        self.assertEqual(match.route, "<lang>/<path:url>/")
        self.assertEqual(match.captured_kwargs, {"lang": "en", "url": "foo"})
        self.assertEqual(match.extra_kwargs, {})

    def test_re_path(self):
        match = resolve("/regex/1/")
        self.assertEqual(match.url_name, "regex")
        self.assertEqual(match.kwargs, {"pk": "1"})
        self.assertEqual(match.route, "^regex/(?P<pk>[0-9]+)/$")
        self.assertEqual(match.captured_kwargs, {"pk": "1"})
        self.assertEqual(match.extra_kwargs, {})

    def test_re_path_with_optional_parameter(self):
        for url, kwargs in (
            ("/regex_optional/1/2/", {"arg1": "1", "arg2": "2"}),
            ("/regex_optional/1/", {"arg1": "1"}),
        ):
            with self.subTest(url=url):
                match = resolve(url)
                self.assertEqual(match.url_name, "regex_optional")
                self.assertEqual(match.kwargs, kwargs)
                self.assertEqual(
                    match.route,
                    r"^regex_optional/(?P<arg1>\d+)/(?:(?P<arg2>\d+)/)?",
                )
                self.assertEqual(match.captured_kwargs, kwargs)
                self.assertEqual(match.extra_kwargs, {})

    def test_re_path_with_missing_optional_parameter(self):
        match = resolve("/regex_only_optional/")
        self.assertEqual(match.url_name, "regex_only_optional")
        self.assertEqual(match.kwargs, {})
        self.assertEqual(match.args, ())
        self.assertEqual(
            match.route,
            r"^regex_only_optional/(?:(?P<arg1>\d+)/)?",
        )
        self.assertEqual(match.captured_kwargs, {})
        self.assertEqual(match.extra_kwargs, {})

    def test_path_lookup_with_inclusion(self):
        match = resolve("/included_urls/extra/something/")
        self.assertEqual(match.url_name, "inner-extra")
        self.assertEqual(match.route, "included_urls/extra/<extra>/")

    def test_path_lookup_with_empty_string_inclusion(self):
        match = resolve("/more/99/")
        self.assertEqual(match.url_name, "inner-more")
        self.assertEqual(match.route, r"^more/(?P<extra>\w+)/$")
        self.assertEqual(match.kwargs, {"extra": "99", "sub-extra": True})
        self.assertEqual(match.captured_kwargs, {"extra": "99"})
        self.assertEqual(match.extra_kwargs, {"sub-extra": True})

    def test_path_lookup_with_double_inclusion(self):
        match = resolve("/included_urls/more/some_value/")
        self.assertEqual(match.url_name, "inner-more")
        self.assertEqual(match.route, r"included_urls/more/(?P<extra>\w+)/$")

    def test_path_reverse_without_parameter(self):
        url = reverse("articles-2003")
        self.assertEqual(url, "/articles/2003/")

    def test_path_reverse_with_parameter(self):
        url = reverse(
            "articles-year-month-day", kwargs={"year": 2015, "month": 4, "day": 12}
        )
        self.assertEqual(url, "/articles/2015/4/12/")

    @override_settings(ROOT_URLCONF="urlpatterns.path_base64_urls")
    def test_converter_resolve(self):
        for url, (url_name, app_name, kwargs) in converter_test_data:
            with self.subTest(url=url):
                match = resolve(url)
                self.assertEqual(match.url_name, url_name)
                self.assertEqual(match.app_name, app_name)
                self.assertEqual(match.kwargs, kwargs)

    @override_settings(ROOT_URLCONF="urlpatterns.path_base64_urls")
    def test_converter_reverse(self):
        for expected, (url_name, app_name, kwargs) in converter_test_data:
            if app_name:
                url_name = "%s:%s" % (app_name, url_name)
            with self.subTest(url=url_name):
                url = reverse(url_name, kwargs=kwargs)
                self.assertEqual(url, expected)

    @override_settings(ROOT_URLCONF="urlpatterns.path_base64_urls")
    def test_converter_reverse_with_second_layer_instance_namespace(self):
        kwargs = included_kwargs.copy()
        kwargs["last_value"] = b"world"
        url = reverse("instance-ns-base64:subsubpattern-base64", kwargs=kwargs)
        self.assertEqual(url, "/base64/aGVsbG8=/subpatterns/d29ybGQ=/d29ybGQ=/")

    def test_path_inclusion_is_matchable(self):
        match = resolve("/included_urls/extra/something/")
        self.assertEqual(match.url_name, "inner-extra")
        self.assertEqual(match.kwargs, {"extra": "something"})

    def test_path_inclusion_is_reversible(self):
        url = reverse("inner-extra", kwargs={"extra": "something"})
        self.assertEqual(url, "/included_urls/extra/something/")

    def test_invalid_kwargs(self):
        msg = "kwargs argument must be a dict, but got str."
        with self.assertRaisesMessage(TypeError, msg):
            path("hello/", empty_view, "name")
        with self.assertRaisesMessage(TypeError, msg):
            re_path("^hello/$", empty_view, "name")

    def test_invalid_converter(self):
        msg = "URL route 'foo/<nonexistent:var>/' uses invalid converter 'nonexistent'."
        with self.assertRaisesMessage(ImproperlyConfigured, msg):
            path("foo/<nonexistent:var>/", empty_view)

    def test_invalid_view(self):
        msg = "view must be a callable or a list/tuple in the case of include()."
        with self.assertRaisesMessage(TypeError, msg):
            path("articles/", "invalid_view")

    def test_invalid_view_instance(self):
        class EmptyCBV(View):
            pass

        msg = "view must be a callable, pass EmptyCBV.as_view(), not EmptyCBV()."
        with self.assertRaisesMessage(TypeError, msg):
            path("foo", EmptyCBV())

    def test_whitespace_in_route(self):
        msg = (
            "URL route 'space/<int:num>/extra/<str:%stest>' cannot contain "
            "whitespace in angle brackets <…>"
        )
        for whitespace in string.whitespace:
            with self.subTest(repr(whitespace)):
                with self.assertRaisesMessage(ImproperlyConfigured, msg % whitespace):
                    path("space/<int:num>/extra/<str:%stest>" % whitespace, empty_view)
        
        p = path("space%s/<int:num>/" % string.whitespace, empty_view)
        match = p.resolve("space%s/1/" % string.whitespace)
        self.assertEqual(match.kwargs, {"num": 1})

    def test_path_trailing_newlines(self):
        tests = [
            "/articles/2003/\n",
            "/articles/2010/\n",
            "/en/foo/\n",
            "/included_urls/extra/\n",
            "/regex/1/\n",
            "/users/1/\n",
        ]
        for url in tests:
            with self.subTest(url=url), self.assertRaises(Resolver404):
                resolve(url)


@override_settings(ROOT_URLCONF="urlpatterns.converter_urls")
class ConverterTests(SimpleTestCase):
    def test_matching_urls(self):
        def no_converter(x):
            return x

        test_data = (
            ("int", {"0", "1", "01", 1234567890}, int),
            ("str", {"abcxyz"}, no_converter),
            ("path", {"allows.ANY*characters"}, no_converter),
            ("slug", {"abcxyz-ABCXYZ_01234567890"}, no_converter),
            ("uuid", {"39da9369-838e-4750-91a5-f7805cd82839"}, uuid.UUID),
        )
        for url_name, url_suffixes, converter in test_data:
            for url_suffix in url_suffixes:
                url = "/%s/%s/" % (url_name, url_suffix)
                with self.subTest(url=url):
                    match = resolve(url)
                    self.assertEqual(match.url_name, url_name)
                    self.assertEqual(match.kwargs, {url_name: converter(url_suffix)})
                    
                    string_kwargs = {url_name: url_suffix}
                    self.assertEqual(reverse(url_name, kwargs=string_kwargs), url)
                    
                    if converter is not no_converter:
                        
                        
                        converted_value = match.kwargs[url_name]
                        converted_url = "/%s/%s/" % (url_name, converted_value)
                        self.assertEqual(
                            reverse(url_name, kwargs={url_name: converted_value}),
                            converted_url,
                        )

    def test_nonmatching_urls(self):
        test_data = (
            ("int", {"-1", "letters"}),
            ("str", {"", "/"}),
            ("path", {""}),
            ("slug", {"", "stars*notallowed"}),
            (
                "uuid",
                {
                    "",
                    "9da9369-838e-4750-91a5-f7805cd82839",
                    "39da9369-838-4750-91a5-f7805cd82839",
                    "39da9369-838e-475-91a5-f7805cd82839",
                    "39da9369-838e-4750-91a-f7805cd82839",
                    "39da9369-838e-4750-91a5-f7805cd8283",
                },
            ),
        )
        for url_name, url_suffixes in test_data:
            for url_suffix in url_suffixes:
                url = "/%s/%s/" % (url_name, url_suffix)
                with self.subTest(url=url), self.assertRaises(Resolver404):
                    resolve(url)


@override_settings(ROOT_URLCONF="urlpatterns.path_same_name_urls")
class SameNameTests(SimpleTestCase):
    def test_matching_urls_same_name(self):
        @DynamicConverter.register_to_url
        def requires_tiny_int(value):
            if value > 5:
                raise ValueError
            return value

        tests = [
            (
                "number_of_args",
                [
                    ([], {}, "0/"),
                    ([1], {}, "1/1/"),
                ],
            ),
            (
                "kwargs_names",
                [
                    ([], {"a": 1}, "a/1/"),
                    ([], {"b": 1}, "b/1/"),
                ],
            ),
            (
                "converter",
                [
                    (["a/b"], {}, "path/a/b/"),
                    (["a b"], {}, "str/a%20b/"),
                    (["a-b"], {}, "slug/a-b/"),
                    (["2"], {}, "int/2/"),
                    (
                        ["39da9369-838e-4750-91a5-f7805cd82839"],
                        {},
                        "uuid/39da9369-838e-4750-91a5-f7805cd82839/",
                    ),
                ],
            ),
            (
                "regex",
                [
                    (["ABC"], {}, "uppercase/ABC/"),
                    (["abc"], {}, "lowercase/abc/"),
                ],
            ),
            (
                "converter_to_url",
                [
                    ([6], {}, "int/6/"),
                    ([1], {}, "tiny_int/1/"),
                ],
            ),
        ]
        for url_name, cases in tests:
            for args, kwargs, url_suffix in cases:
                expected_url = "/%s/%s" % (url_name, url_suffix)
                with self.subTest(url=expected_url):
                    self.assertEqual(
                        reverse(url_name, args=args, kwargs=kwargs),
                        expected_url,
                    )


class ParameterRestrictionTests(SimpleTestCase):
    def test_integer_parameter_name_causes_exception(self):
        msg = (
            "URL route 'hello/<int:1>/' uses parameter name '1' which isn't "
            "a valid Python identifier."
        )
        with self.assertRaisesMessage(ImproperlyConfigured, msg):
            path(r"hello/<int:1>/", lambda r: None)

    def test_non_identifier_parameter_name_causes_exception(self):
        msg = (
            "URL route 'b/<int:book.id>/' uses parameter name 'book.id' which "
            "isn't a valid Python identifier."
        )
        with self.assertRaisesMessage(ImproperlyConfigured, msg):
            path(r"b/<int:book.id>/", lambda r: None)

    def test_allows_non_ascii_but_valid_identifiers(self):
        
        p = path("hello/<str:\u0394>/", lambda r: None)
        match = p.resolve("hello/1/")
        self.assertEqual(match.kwargs, {"\u0394": "1"})


@override_settings(ROOT_URLCONF="urlpatterns.path_dynamic_urls")
class ConversionExceptionTests(SimpleTestCase):
    

    def test_resolve_value_error_means_no_match(self):
        @DynamicConverter.register_to_python
        def raises_value_error(value):
            raise ValueError()

        with self.assertRaises(Resolver404):
            resolve("/dynamic/abc/")

    def test_resolve_type_error_propagates(self):
        @DynamicConverter.register_to_python
        def raises_type_error(value):
            raise TypeError("This type error propagates.")

        with self.assertRaisesMessage(TypeError, "This type error propagates."):
            resolve("/dynamic/abc/")

    def test_reverse_value_error_means_no_match(self):
        @DynamicConverter.register_to_url
        def raises_value_error(value):
            raise ValueError

        with self.assertRaises(NoReverseMatch):
            reverse("dynamic", kwargs={"value": object()})

    def test_reverse_type_error_propagates(self):
        @DynamicConverter.register_to_url
        def raises_type_error(value):
            raise TypeError("This type error propagates.")

        with self.assertRaisesMessage(TypeError, "This type error propagates."):
            reverse("dynamic", kwargs={"value": object()})