import os
from django.conf import settings
from django.core.exceptions import ImproperlyConfigured
from django.http import HttpResponse, HttpResponsePermanentRedirect
from django.middleware.locale import LocaleMiddleware
from django.template import Context, Template
from django.test import SimpleTestCase, override_settings
from django.test.client import RequestFactory
from django.test.utils import override_script_prefix
from django.urls import clear_url_caches, resolve, reverse, translate_url
from django.utils import translation
class PermanentRedirectLocaleMiddleWare(LocaleMiddleware):
response_redirect_class = HttpResponsePermanentRedirect
@override_settings(
USE_I18N=True,
LOCALE_PATHS=[
os.path.join(os.path.dirname(__file__), "locale"),
],
LANGUAGE_CODE="en-us",
LANGUAGES=[
("nl", "Dutch"),
("en", "English"),
("pt-br", "Brazilian Portuguese"),
],
MIDDLEWARE=[
"django.middleware.locale.LocaleMiddleware",
"django.middleware.common.CommonMiddleware",
],
ROOT_URLCONF="i18n.patterns.urls.default",
TEMPLATES=[
{
"BACKEND": "django.template.backends.django.DjangoTemplates",
"DIRS": [os.path.join(os.path.dirname(__file__), "templates")],
"OPTIONS": {
"context_processors": [
"django.template.context_processors.i18n",
],
},
}
],
)
class URLTestCaseBase(SimpleTestCase):
"""
TestCase base-class for the URL tests.
"""
def setUp(self):
# Make sure the cache is empty before we are doing our tests.
clear_url_caches()
# Make sure we will leave an empty cache for other testcases.
self.addCleanup(clear_url_caches)
class URLPrefixTests(URLTestCaseBase):
"""
Tests if the `i18n_patterns` is adding the prefix correctly.
"""
def test_not_prefixed(self):
with translation.override("en"):
self.assertEqual(reverse("not-prefixed"), "/not-prefixed/")
self.assertEqual(
reverse("not-prefixed-included-url"), "/not-prefixed-include/foo/"
)
with translation.override("nl"):
self.assertEqual(reverse("not-prefixed"), "/not-prefixed/")
self.assertEqual(
reverse("not-prefixed-included-url"), "/not-prefixed-include/foo/"
)
def test_prefixed(self):
with translation.override("en"):
self.assertEqual(reverse("prefixed"), "/en/prefixed/")
with translation.override("nl"):
self.assertEqual(reverse("prefixed"), "/nl/prefixed/")
with translation.override(None):
self.assertEqual(
reverse("prefixed"), "/%s/prefixed/" % settings.LANGUAGE_CODE
)
@override_settings(ROOT_URLCONF="i18n.patterns.urls.wrong")
def test_invalid_prefix_use(self):
msg = "Using i18n_patterns in an included URLconf is not allowed."
with self.assertRaisesMessage(ImproperlyConfigured, msg):
reverse("account:register")
@override_settings(ROOT_URLCONF="i18n.patterns.urls.disabled")
class URLDisabledTests(URLTestCaseBase):
@override_settings(USE_I18N=False)
def test_prefixed_i18n_disabled(self):
with translation.override("en"):
self.assertEqual(reverse("prefixed"), "/prefixed/")
with translation.override("nl"):
self.assertEqual(reverse("prefixed"), "/prefixed/")
class RequestURLConfTests(SimpleTestCase):
@override_settings(ROOT_URLCONF="i18n.patterns.urls.path_unused")
def test_request_urlconf_considered(self):
request = RequestFactory().get("/nl/")
request.urlconf = "i18n.patterns.urls.default"
middleware = LocaleMiddleware(lambda req: HttpResponse())
with translation.override("nl"):
middleware.process_request(request)
self.assertEqual(request.LANGUAGE_CODE, "nl")
@override_settings(ROOT_URLCONF="i18n.patterns.urls.path_unused")
class PathUnusedTests(URLTestCaseBase):
"""
If no i18n_patterns is used in root URLconfs, then no language activation
activation happens based on url prefix.
"""
def test_no_lang_activate(self):
response = self.client.get("/nl/foo/")
self.assertEqual(response.status_code, 200)
self.assertEqual(response.headers["content-language"], "en")
self.assertEqual(response.context["LANGUAGE_CODE"], "en")
class URLTranslationTests(URLTestCaseBase):
"""
Tests if the pattern-strings are translated correctly (within the
`i18n_patterns` and the normal `patterns` function).
"""
def test_no_prefix_translated(self):
with translation.override("en"):
self.assertEqual(reverse("no-prefix-translated"), "/translated/")
self.assertEqual(
reverse("no-prefix-translated-regex"), "/translated-regex/"
)
self.assertEqual(
reverse("no-prefix-translated-slug", kwargs={"slug": "yeah"}),
"/translated/yeah/",
)
with translation.override("nl"):
self.assertEqual(reverse("no-prefix-translated"), "/vertaald/")
self.assertEqual(reverse("no-prefix-translated-regex"), "/vertaald-regex/")
self.assertEqual(
reverse("no-prefix-translated-slug", kwargs={"slug": "yeah"}),
"/vertaald/yeah/",
)
with translation.override("pt-br"):
self.assertEqual(reverse("no-prefix-translated"), "/traduzidos/")
self.assertEqual(
reverse("no-prefix-translated-regex"), "/traduzidos-regex/"
)
self.assertEqual(
reverse("no-prefix-translated-slug", kwargs={"slug": "yeah"}),
"/traduzidos/yeah/",
)
def test_users_url(self):
with translation.override("en"):
self.assertEqual(reverse("users"), "/en/users/")
with translation.override("nl"):
self.assertEqual(reverse("users"), "/nl/gebruikers/")
self.assertEqual(reverse("prefixed_xml"), "/nl/prefixed.xml")
with translation.override("pt-br"):
self.assertEqual(reverse("users"), "/pt-br/usuarios/")
def test_translate_url_utility(self):
with translation.override("en"):
self.assertEqual(
translate_url("/en/nonexistent/", "nl"), "/en/nonexistent/"
)
self.assertEqual(translate_url("/en/users/", "nl"), "/nl/gebruikers/")
# Namespaced URL
self.assertEqual(
translate_url("/en/account/register/", "nl"), "/nl/profiel/registreren/"
)
# path() URL pattern
self.assertEqual(
translate_url("/en/account/register-as-path/", "nl"),
"/nl/profiel/registreren-als-pad/",
)
self.assertEqual(translation.get_language(), "en")
# re_path() URL with parameters.
self.assertEqual(
translate_url("/en/with-arguments/regular-argument/", "nl"),
"/nl/with-arguments/regular-argument/",
)
self.assertEqual(
translate_url(
"/en/with-arguments/regular-argument/optional.html", "nl"
),
"/nl/with-arguments/regular-argument/optional.html",
)
# path() URL with parameter.
self.assertEqual(
translate_url("/en/path-with-arguments/regular-argument/", "nl"),
"/nl/path-with-arguments/regular-argument/",
)
with translation.override("nl"):
self.assertEqual(translate_url("/nl/gebruikers/", "en"), "/en/users/")
self.assertEqual(translation.get_language(), "nl")
def test_reverse_translated_with_captured_kwargs(self):
with translation.override("en"):
match = resolve("/translated/apo/")
# Links to the same page in other languages.
tests = [
("nl", "/vertaald/apo/"),
("pt-br", "/traduzidos/apo/"),
]
for lang, expected_link in tests:
with translation.override(lang):
self.assertEqual(
reverse(
match.url_name, args=match.args, kwargs=match.captured_kwargs
),
expected_link,
)
def test_locale_not_interepreted_as_regex(self):
with translation.override("e("):
# Would previously error:
# re.error: missing ), unterminated subpattern at position 1
reverse("users")
class URLNamespaceTests(URLTestCaseBase):
"""
Tests if the translations are still working within namespaces.
"""
def test_account_register(self):
with translation.override("en"):
self.assertEqual(reverse("account:register"), "/en/account/register/")
self.assertEqual(
reverse("account:register-as-path"), "/en/account/register-as-path/"
)
with translation.override("nl"):
self.assertEqual(reverse("account:register"), "/nl/profiel/registreren/")
self.assertEqual(
reverse("account:register-as-path"), "/nl/profiel/registreren-als-pad/"
)
class URLRedirectTests(URLTestCaseBase):
"""
Tests if the user gets redirected to the right URL when there is no
language-prefix in the request URL.
"""
def test_no_prefix_response(self):
response = self.client.get("/not-prefixed/")
self.assertEqual(response.status_code, 200)
def test_en_redirect(self):
response = self.client.get(
"/account/register/", headers={"accept-language": "en"}
)
self.assertRedirects(response, "/en/account/register/")
response = self.client.get(response.headers["location"])
self.assertEqual(response.status_code, 200)
def test_en_redirect_wrong_url(self):
response = self.client.get(
"/profiel/registreren/", headers={"accept-language": "en"}
)
self.assertEqual(response.status_code, 404)
def test_nl_redirect(self):
response = self.client.get(
"/profiel/registreren/", headers={"accept-language": "nl"}
)
self.assertRedirects(response, "/nl/profiel/registreren/")
response = self.client.get(response.headers["location"])
self.assertEqual(response.status_code, 200)
def test_nl_redirect_wrong_url(self):
response = self.client.get(
"/account/register/", headers={"accept-language": "nl"}
)
self.assertEqual(response.status_code, 404)
def test_pt_br_redirect(self):
response = self.client.get(
"/conta/registre-se/", headers={"accept-language": "pt-br"}
)
self.assertRedirects(response, "/pt-br/conta/registre-se/")
response = self.client.get(response.headers["location"])
self.assertEqual(response.status_code, 200)
def test_pl_pl_redirect(self):
# language from outside of the supported LANGUAGES list
response = self.client.get(
"/account/register/", headers={"accept-language": "pl-pl"}
)
self.assertRedirects(response, "/en/account/register/")
response = self.client.get(response.headers["location"])
self.assertEqual(response.status_code, 200)
@override_settings(
MIDDLEWARE=[
"i18n.patterns.tests.PermanentRedirectLocaleMiddleWare",
"django.middleware.common.CommonMiddleware",
],
)
def test_custom_redirect_class(self):
response = self.client.get(
"/account/register/", headers={"accept-language": "en"}
)
self.assertRedirects(response, "/en/account/register/", 301)
class URLVaryAcceptLanguageTests(URLTestCaseBase):
"""
'Accept-Language' is not added to the Vary header when using prefixed URLs.
"""
def test_no_prefix_response(self):
response = self.client.get("/not-prefixed/")
self.assertEqual(response.status_code, 200)
self.assertEqual(response.get("Vary"), "Accept-Language")
def test_en_redirect(self):
"""
The redirect to a prefixed URL depends on 'Accept-Language' and
'Cookie', but once prefixed no header is set.
"""
response = self.client.get(
"/account/register/", headers={"accept-language": "en"}
)
self.assertRedirects(response, "/en/account/register/")
self.assertEqual(response.get("Vary"), "Accept-Language, Cookie")
response = self.client.get(response.headers["location"])
self.assertEqual(response.status_code, 200)
self.assertFalse(response.get("Vary"))
class URLRedirectWithoutTrailingSlashTests(URLTestCaseBase):
"""
Tests the redirect when the requested URL doesn't end with a slash
(`settings.APPEND_SLASH=True`).
"""
def test_not_prefixed_redirect(self):
response = self.client.get("/not-prefixed", headers={"accept-language": "en"})
self.assertRedirects(response, "/not-prefixed/", 301)
def test_en_redirect(self):
response = self.client.get(
"/account/register", headers={"accept-language": "en"}, follow=True
)
# We only want one redirect, bypassing CommonMiddleware
self.assertEqual(response.redirect_chain, [("/en/account/register/", 302)])
self.assertRedirects(response, "/en/account/register/", 302)
response = self.client.get(
"/prefixed.xml", headers={"accept-language": "en"}, follow=True
)
self.assertRedirects(response, "/en/prefixed.xml", 302)
class URLRedirectWithoutTrailingSlashSettingTests(URLTestCaseBase):
"""
Tests the redirect when the requested URL doesn't end with a slash
(`settings.APPEND_SLASH=False`).
"""
@override_settings(APPEND_SLASH=False)
def test_not_prefixed_redirect(self):
response = self.client.get("/not-prefixed", headers={"accept-language": "en"})
self.assertEqual(response.status_code, 404)
@override_settings(APPEND_SLASH=False)
def test_en_redirect(self):
response = self.client.get(
"/account/register-without-slash", headers={"accept-language": "en"}
)
self.assertRedirects(response, "/en/account/register-without-slash", 302)
response = self.client.get(response.headers["location"])
self.assertEqual(response.status_code, 200)
class URLResponseTests(URLTestCaseBase):
"""Tests if the response has the correct language code."""
def test_not_prefixed_with_prefix(self):
response = self.client.get("/en/not-prefixed/")
self.assertEqual(response.status_code, 404)
def test_en_url(self):
response = self.client.get("/en/account/register/")
self.assertEqual(response.status_code, 200)
self.assertEqual(response.headers["content-language"], "en")
self.assertEqual(response.context["LANGUAGE_CODE"], "en")
def test_nl_url(self):
response = self.client.get("/nl/profiel/registreren/")
self.assertEqual(response.status_code, 200)
self.assertEqual(response.headers["content-language"], "nl")
self.assertEqual(response.context["LANGUAGE_CODE"], "nl")
def test_wrong_en_prefix(self):
response = self.client.get("/en/profiel/registreren/")
self.assertEqual(response.status_code, 404)
def test_wrong_nl_prefix(self):
response = self.client.get("/nl/account/register/")
self.assertEqual(response.status_code, 404)
def test_pt_br_url(self):
response = self.client.get("/pt-br/conta/registre-se/")
self.assertEqual(response.status_code, 200)
self.assertEqual(response.headers["content-language"], "pt-br")
self.assertEqual(response.context["LANGUAGE_CODE"], "pt-br")
def test_en_path(self):
response = self.client.get("/en/account/register-as-path/")
self.assertEqual(response.status_code, 200)
self.assertEqual(response.headers["content-language"], "en")
self.assertEqual(response.context["LANGUAGE_CODE"], "en")
def test_nl_path(self):
response = self.client.get("/nl/profiel/registreren-als-pad/")
self.assertEqual(response.status_code, 200)
self.assertEqual(response.headers["content-language"], "nl")
self.assertEqual(response.context["LANGUAGE_CODE"], "nl")
@override_settings(ROOT_URLCONF="i18n.urls_default_unprefixed", LANGUAGE_CODE="nl")
class URLPrefixedFalseTranslatedTests(URLTestCaseBase):
def test_translated_path_unprefixed_language_other_than_accepted_header(self):
response = self.client.get("/gebruikers/", headers={"accept-language": "en"})
self.assertEqual(response.status_code, 200)
def test_translated_path_unprefixed_language_other_than_cookie_language(self):
self.client.cookies.load({settings.LANGUAGE_COOKIE_NAME: "en"})
response = self.client.get("/gebruikers/")
self.assertEqual(response.status_code, 200)
def test_translated_path_prefixed_language_other_than_accepted_header(self):
response = self.client.get("/en/users/", headers={"accept-language": "nl"})
self.assertEqual(response.status_code, 200)
def test_translated_path_prefixed_language_other_than_cookie_language(self):
self.client.cookies.load({settings.LANGUAGE_COOKIE_NAME: "nl"})
response = self.client.get("/en/users/")
self.assertEqual(response.status_code, 200)
class URLRedirectWithScriptAliasTests(URLTestCaseBase):
"""
#21579 - LocaleMiddleware should respect the script prefix.
"""
def test_language_prefix_with_script_prefix(self):
prefix = "/script_prefix"
with override_script_prefix(prefix):
response = self.client.get(
"/prefixed/", headers={"accept-language": "en"}, SCRIPT_NAME=prefix
)
self.assertRedirects(
response, "%s/en/prefixed/" % prefix, target_status_code=404
)
class URLTagTests(URLTestCaseBase):
"""
Test if the language tag works.
"""
def test_strings_only(self):
t = Template(
"""{% load i18n %}
{% language 'nl' %}{% url 'no-prefix-translated' %}{% endlanguage %}
{% language 'pt-br' %}{% url 'no-prefix-translated' %}{% endlanguage %}"""
)
self.assertEqual(
t.render(Context({})).strip().split(), ["/vertaald/", "/traduzidos/"]
)
def test_context(self):
ctx = Context({"lang1": "nl", "lang2": "pt-br"})
tpl = Template(
"""{% load i18n %}
{% language lang1 %}{% url 'no-prefix-translated' %}{% endlanguage %}
{% language lang2 %}{% url 'no-prefix-translated' %}{% endlanguage %}"""
)
self.assertEqual(
tpl.render(ctx).strip().split(), ["/vertaald/", "/traduzidos/"]
)
def test_args(self):
tpl = Template(
"""
{% load i18n %}
{% language 'nl' %}
{% url 'no-prefix-translated-slug' 'apo' %}{% endlanguage %}
{% language 'pt-br' %}
{% url 'no-prefix-translated-slug' 'apo' %}{% endlanguage %}
"""
)
self.assertEqual(
tpl.render(Context({})).strip().split(),
["/vertaald/apo/", "/traduzidos/apo/"],
)
def test_kwargs(self):
tpl = Template(
"""
{% load i18n %}
{% language 'nl' %}
{% url 'no-prefix-translated-slug' slug='apo' %}{% endlanguage %}
{% language 'pt-br' %}
{% url 'no-prefix-translated-slug' slug='apo' %}{% endlanguage %}
"""
)
self.assertEqual(
tpl.render(Context({})).strip().split(),
["/vertaald/apo/", "/traduzidos/apo/"],
)