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django/tests/regressiontests/utils/decorators.py
Luke Plant a482cc0ba3 Fixed #16004 - csrf_protect does not send cookie if view returns TemplateResponse
The root bug was in decorator_from_middleware, and the fix also corrects
bugs with gzip_page and other decorators.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16276 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2011-05-24 21:28:43 +00:00

107 lines
3.7 KiB
Python

from django.http import HttpResponse
from django.middleware.doc import XViewMiddleware
from django.template import Template, Context
from django.template.response import TemplateResponse
from django.test import TestCase, RequestFactory
from django.utils.decorators import decorator_from_middleware
xview_dec = decorator_from_middleware(XViewMiddleware)
@xview_dec
def xview(request):
return HttpResponse()
class ClassXView(object):
def __call__(self, request):
return HttpResponse()
class_xview = xview_dec(ClassXView())
class FullMiddleware(object):
def process_request(self, request):
request.process_request_reached = True
def process_view(sef, request, view_func, view_args, view_kwargs):
request.process_view_reached = True
def process_template_response(self, request, response):
request.process_template_response_reached = True
return response
def process_response(self, request, response):
# This should never receive unrendered content.
request.process_response_content = response.content
request.process_response_reached = True
return response
full_dec = decorator_from_middleware(FullMiddleware)
class DecoratorFromMiddlewareTests(TestCase):
"""
Tests for view decorators created using
``django.utils.decorators.decorator_from_middleware``.
"""
rf = RequestFactory()
def test_process_view_middleware(self):
"""
Test a middleware that implements process_view.
"""
xview(self.rf.get('/'))
def test_callable_process_view_middleware(self):
"""
Test a middleware that implements process_view, operating on a callable class.
"""
class_xview(self.rf.get('/'))
def test_full_dec_normal(self):
"""
Test that all methods of middleware are called for normal HttpResponses
"""
@full_dec
def normal_view(request):
t = Template("Hello world")
return HttpResponse(t.render(Context({})))
request = self.rf.get('/')
response = normal_view(request)
self.assertTrue(getattr(request, 'process_request_reached', False))
self.assertTrue(getattr(request, 'process_view_reached', False))
# process_template_response must not be called for HttpResponse
self.assertFalse(getattr(request, 'process_template_response_reached', False))
self.assertTrue(getattr(request, 'process_response_reached', False))
def test_full_dec_templateresponse(self):
"""
Test that all methods of middleware are called for TemplateResponses in
the right sequence.
"""
@full_dec
def template_response_view(request):
t = Template("Hello world")
return TemplateResponse(request, t, {})
request = self.rf.get('/')
response = template_response_view(request)
self.assertTrue(getattr(request, 'process_request_reached', False))
self.assertTrue(getattr(request, 'process_view_reached', False))
self.assertTrue(getattr(request, 'process_template_response_reached', False))
# response must not be rendered yet.
self.assertFalse(response._is_rendered)
# process_response must not be called until after response is rendered,
# otherwise some decorators like csrf_protect and gzip_page will not
# work correctly. See #16004
self.assertFalse(getattr(request, 'process_response_reached', False))
response.render()
self.assertTrue(getattr(request, 'process_response_reached', False))
# Check that process_response saw the rendered content
self.assertEqual(request.process_response_content, "Hello world")