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from django.core.exceptions import PermissionDenied
from django.template.response import TemplateResponse
from django.test import SimpleTestCase, modify_settings, override_settings
from django.urls import path
class MiddlewareAccessingContent:
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
response = self.get_response(request)
# Response.content should be available in the middleware even with a
# TemplateResponse-based exception response.
assert response.content
return response
def template_response_error_handler(request, exception=None):
return TemplateResponse(request, "test_handler.html", status=403)
def permission_denied_view(request):
raise PermissionDenied
urlpatterns = [
path("", permission_denied_view),
]
handler403 = template_response_error_handler
@override_settings(ROOT_URLCONF="handlers.tests_custom_error_handlers")
@modify_settings(
MIDDLEWARE={
"append": "handlers.tests_custom_error_handlers.MiddlewareAccessingContent"
}
)
class CustomErrorHandlerTests(SimpleTestCase):
def test_handler_renders_template_response(self):
"""
BaseHandler should render TemplateResponse if necessary.
"""
response = self.client.get("/")
self.assertContains(response, "Error handler content", status_code=403)
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