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|
import sys
from django.conf import settings
from django.core.signals import got_request_exception
from django.http import HttpResponse
from django.template.response import TemplateResponse
from django.template import Template
from django.test import TestCase
from django.test.utils import override_settings
class TestException(Exception):
pass
# A middleware base class that tracks which methods have been called
class TestMiddleware(object):
def __init__(self):
self.process_request_called = False
self.process_view_called = False
self.process_response_called = False
self.process_template_response_called = False
self.process_exception_called = False
def process_request(self, request):
self.process_request_called = True
def process_view(self, request, view_func, view_args, view_kwargs):
self.process_view_called = True
def process_template_response(self, request, response):
self.process_template_response_called = True
return response
def process_response(self, request, response):
self.process_response_called = True
return response
def process_exception(self, request, exception):
self.process_exception_called = True
# Middleware examples that do the right thing
class RequestMiddleware(TestMiddleware):
def process_request(self, request):
super(RequestMiddleware, self).process_request(request)
return HttpResponse('Request Middleware')
class ViewMiddleware(TestMiddleware):
def process_view(self, request, view_func, view_args, view_kwargs):
super(ViewMiddleware, self).process_view(request, view_func, view_args, view_kwargs)
return HttpResponse('View Middleware')
class ResponseMiddleware(TestMiddleware):
def process_response(self, request, response):
super(ResponseMiddleware, self).process_response(request, response)
return HttpResponse('Response Middleware')
class TemplateResponseMiddleware(TestMiddleware):
def process_template_response(self, request, response):
super(TemplateResponseMiddleware, self).process_template_response(request, response)
return TemplateResponse(request, Template('Template Response Middleware'))
class ExceptionMiddleware(TestMiddleware):
def process_exception(self, request, exception):
super(ExceptionMiddleware, self).process_exception(request, exception)
return HttpResponse('Exception Middleware')
# Sample middlewares that raise exceptions
class BadRequestMiddleware(TestMiddleware):
def process_request(self, request):
super(BadRequestMiddleware, self).process_request(request)
raise TestException('Test Request Exception')
class BadViewMiddleware(TestMiddleware):
def process_view(self, request, view_func, view_args, view_kwargs):
super(BadViewMiddleware, self).process_view(request, view_func, view_args, view_kwargs)
raise TestException('Test View Exception')
class BadTemplateResponseMiddleware(TestMiddleware):
def process_template_response(self, request, response):
super(BadTemplateResponseMiddleware, self).process_template_response(request, response)
raise TestException('Test Template Response Exception')
class BadResponseMiddleware(TestMiddleware):
def process_response(self, request, response):
super(BadResponseMiddleware, self).process_response(request, response)
raise TestException('Test Response Exception')
class BadExceptionMiddleware(TestMiddleware):
def process_exception(self, request, exception):
super(BadExceptionMiddleware, self).process_exception(request, exception)
raise TestException('Test Exception Exception')
class BaseMiddlewareExceptionTest(TestCase):
urls = 'middleware_exceptions.urls'
def setUp(self):
self.exceptions = []
got_request_exception.connect(self._on_request_exception)
self.client.handler.load_middleware()
def tearDown(self):
got_request_exception.disconnect(self._on_request_exception)
self.exceptions = []
def _on_request_exception(self, sender, request, **kwargs):
self.exceptions.append(sys.exc_info())
def _add_middleware(self, middleware):
self.client.handler._request_middleware.insert(0, middleware.process_request)
self.client.handler._view_middleware.insert(0, middleware.process_view)
self.client.handler._template_response_middleware.append(middleware.process_template_response)
self.client.handler._response_middleware.append(middleware.process_response)
self.client.handler._exception_middleware.append(middleware.process_exception)
def assert_exceptions_handled(self, url, errors, extra_error=None):
try:
self.client.get(url)
except TestException:
# Test client intentionally re-raises any exceptions being raised
# during request handling. Hence actual testing that exception was
# properly handled is done by relying on got_request_exception
# signal being sent.
pass
except Exception as e:
if type(extra_error) != type(e):
self.fail("Unexpected exception: %s" % e)
self.assertEqual(len(self.exceptions), len(errors))
for i, error in enumerate(errors):
exception, value, tb = self.exceptions[i]
self.assertEqual(value.args, (error, ))
def assert_middleware_usage(self, middleware, request, view, template_response, response, exception):
self.assertEqual(middleware.process_request_called, request)
self.assertEqual(middleware.process_view_called, view)
self.assertEqual(middleware.process_template_response_called, template_response)
self.assertEqual(middleware.process_response_called, response)
self.assertEqual(middleware.process_exception_called, exception)
class MiddlewareTests(BaseMiddlewareExceptionTest):
def test_process_request_middleware(self):
pre_middleware = TestMiddleware()
middleware = RequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, False, True, False)
self.assert_middleware_usage(middleware, True, False, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, False, True, False)
def test_process_view_middleware(self):
pre_middleware = TestMiddleware()
middleware = ViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, False, False, True, False)
def test_process_response_middleware(self):
pre_middleware = TestMiddleware()
middleware = ResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, True, False, True, False)
def test_process_template_response_middleware(self):
pre_middleware = TestMiddleware()
middleware = TemplateResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/template_response/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, True, True, False)
self.assert_middleware_usage(middleware, True, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, True, True, True, False)
def test_process_exception_middleware(self):
pre_middleware = TestMiddleware()
middleware = ExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, True, False, True, False)
def test_process_request_middleware_not_found(self):
pre_middleware = TestMiddleware()
middleware = RequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, False, True, False)
self.assert_middleware_usage(middleware, True, False, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, False, True, False)
def test_process_view_middleware_not_found(self):
pre_middleware = TestMiddleware()
middleware = ViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, False, False, True, False)
def test_process_template_response_middleware_not_found(self):
pre_middleware = TestMiddleware()
middleware = TemplateResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, True)
self.assert_middleware_usage(middleware, True, True, False, True, True)
self.assert_middleware_usage(post_middleware, True, True, False, True, True)
def test_process_response_middleware_not_found(self):
pre_middleware = TestMiddleware()
middleware = ResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, True)
self.assert_middleware_usage(middleware, True, True, False, True, True)
self.assert_middleware_usage(post_middleware, True, True, False, True, True)
def test_process_exception_middleware_not_found(self):
pre_middleware = TestMiddleware()
middleware = ExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(middleware, True, True, False, True, True)
self.assert_middleware_usage(post_middleware, True, True, False, True, True)
def test_process_request_middleware_exception(self):
pre_middleware = TestMiddleware()
middleware = RequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, False, True, False)
self.assert_middleware_usage(middleware, True, False, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, False, True, False)
def test_process_view_middleware_exception(self):
pre_middleware = TestMiddleware()
middleware = ViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, False, False, True, False)
def test_process_response_middleware_exception(self):
pre_middleware = TestMiddleware()
middleware = ResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', ['Error in view'], Exception())
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, True)
self.assert_middleware_usage(middleware, True, True, False, True, True)
self.assert_middleware_usage(post_middleware, True, True, False, True, True)
def test_process_exception_middleware_exception(self):
pre_middleware = TestMiddleware()
middleware = ExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(middleware, True, True, False, True, True)
self.assert_middleware_usage(post_middleware, True, True, False, True, True)
def test_process_request_middleware_null_view(self):
pre_middleware = TestMiddleware()
middleware = RequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, False, True, False)
self.assert_middleware_usage(middleware, True, False, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, False, True, False)
def test_process_view_middleware_null_view(self):
pre_middleware = TestMiddleware()
middleware = ViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, False, False, True, False)
def test_process_response_middleware_null_view(self):
pre_middleware = TestMiddleware()
middleware = ResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', [
"The view middleware_exceptions.views.null_view didn't return an HttpResponse object.",
],
ValueError())
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, True, False, True, False)
def test_process_exception_middleware_null_view(self):
pre_middleware = TestMiddleware()
middleware = ExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', [
"The view middleware_exceptions.views.null_view didn't return an HttpResponse object."
],
ValueError())
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, True, False, True, False)
def test_process_request_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
middleware = RequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, False, True, False)
self.assert_middleware_usage(middleware, True, False, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, False, True, False)
def test_process_view_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
middleware = ViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, False, False, True, False)
def test_process_response_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
middleware = ResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, True)
self.assert_middleware_usage(middleware, True, True, False, True, True)
self.assert_middleware_usage(post_middleware, True, True, False, True, True)
def test_process_exception_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
middleware = ExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(middleware, True, True, False, True, True)
self.assert_middleware_usage(post_middleware, True, True, False, True, True)
def test_process_template_response_error(self):
middleware = TestMiddleware()
self._add_middleware(middleware)
self.assert_exceptions_handled('/middleware_exceptions/template_response_error/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(middleware, True, True, True, True, False)
class BadMiddlewareTests(BaseMiddlewareExceptionTest):
def test_process_request_bad_middleware(self):
pre_middleware = TestMiddleware()
bad_middleware = BadRequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', ['Test Request Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, False, True, False)
self.assert_middleware_usage(bad_middleware, True, False, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, False, True, False)
def test_process_view_bad_middleware(self):
pre_middleware = TestMiddleware()
bad_middleware = BadViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', ['Test View Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, False, False, True, False)
def test_process_template_response_bad_middleware(self):
pre_middleware = TestMiddleware()
bad_middleware = BadTemplateResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/template_response/', ['Test Template Response Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, True, True, True, False)
self.assert_middleware_usage(post_middleware, True, True, True, True, False)
def test_process_response_bad_middleware(self):
pre_middleware = TestMiddleware()
bad_middleware = BadResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', ['Test Response Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, False, False)
self.assert_middleware_usage(bad_middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, True, False, True, False)
def test_process_exception_bad_middleware(self):
pre_middleware = TestMiddleware()
bad_middleware = BadExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/view/', [])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, True, False, True, False)
def test_process_request_bad_middleware_not_found(self):
pre_middleware = TestMiddleware()
bad_middleware = BadRequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', ['Test Request Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, False, True, False)
self.assert_middleware_usage(bad_middleware, True, False, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, False, True, False)
def test_process_view_bad_middleware_not_found(self):
pre_middleware = TestMiddleware()
bad_middleware = BadViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', ['Test View Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, False, False, True, False)
def test_process_response_bad_middleware_not_found(self):
pre_middleware = TestMiddleware()
bad_middleware = BadResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', ['Test Response Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, False, True)
self.assert_middleware_usage(bad_middleware, True, True, False, True, True)
self.assert_middleware_usage(post_middleware, True, True, False, True, True)
def test_process_exception_bad_middleware_not_found(self):
pre_middleware = TestMiddleware()
bad_middleware = BadExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/not_found/', ['Test Exception Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, True, False, True, True)
self.assert_middleware_usage(post_middleware, True, True, False, True, True)
def test_process_request_bad_middleware_exception(self):
pre_middleware = TestMiddleware()
bad_middleware = BadRequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', ['Test Request Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, False, True, False)
self.assert_middleware_usage(bad_middleware, True, False, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, False, True, False)
def test_process_view_bad_middleware_exception(self):
pre_middleware = TestMiddleware()
bad_middleware = BadViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', ['Test View Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, False, False, True, False)
def test_process_response_bad_middleware_exception(self):
pre_middleware = TestMiddleware()
bad_middleware = BadResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', ['Error in view', 'Test Response Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, False, True)
self.assert_middleware_usage(bad_middleware, True, True, False, True, True)
self.assert_middleware_usage(post_middleware, True, True, False, True, True)
def test_process_exception_bad_middleware_exception(self):
pre_middleware = TestMiddleware()
bad_middleware = BadExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/error/', ['Test Exception Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, True, False, True, True)
self.assert_middleware_usage(post_middleware, True, True, False, True, True)
def test_process_request_bad_middleware_null_view(self):
pre_middleware = TestMiddleware()
bad_middleware = BadRequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', ['Test Request Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, False, True, False)
self.assert_middleware_usage(bad_middleware, True, False, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, False, True, False)
def test_process_view_bad_middleware_null_view(self):
pre_middleware = TestMiddleware()
bad_middleware = BadViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', ['Test View Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, False, False, True, False)
def test_process_response_bad_middleware_null_view(self):
pre_middleware = TestMiddleware()
bad_middleware = BadResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', [
"The view middleware_exceptions.views.null_view didn't return an HttpResponse object.",
'Test Response Exception'
])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, False, False)
self.assert_middleware_usage(bad_middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, True, False, True, False)
def test_process_exception_bad_middleware_null_view(self):
pre_middleware = TestMiddleware()
bad_middleware = BadExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/null_view/', [
"The view middleware_exceptions.views.null_view didn't return an HttpResponse object."
],
ValueError())
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, True, False, True, False)
def test_process_request_bad_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
bad_middleware = BadRequestMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', ['Test Request Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, False, False, True, False)
self.assert_middleware_usage(bad_middleware, True, False, False, True, False)
self.assert_middleware_usage(post_middleware, False, False, False, True, False)
def test_process_view_bad_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
bad_middleware = BadViewMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', ['Test View Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, True, False, True, False)
self.assert_middleware_usage(post_middleware, True, False, False, True, False)
def test_process_response_bad_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
bad_middleware = BadResponseMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', ['Test Response Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, False, True)
self.assert_middleware_usage(bad_middleware, True, True, False, True, True)
self.assert_middleware_usage(post_middleware, True, True, False, True, True)
def test_process_exception_bad_middleware_permission_denied(self):
pre_middleware = TestMiddleware()
bad_middleware = BadExceptionMiddleware()
post_middleware = TestMiddleware()
self._add_middleware(post_middleware)
self._add_middleware(bad_middleware)
self._add_middleware(pre_middleware)
self.assert_exceptions_handled('/middleware_exceptions/permission_denied/', ['Test Exception Exception'])
# Check that the right middleware methods have been invoked
self.assert_middleware_usage(pre_middleware, True, True, False, True, False)
self.assert_middleware_usage(bad_middleware, True, True, False, True, True)
self.assert_middleware_usage(post_middleware, True, True, False, True, True)
_missing = object()
class RootUrlconfTests(TestCase):
urls = 'middleware_exceptions.urls'
@override_settings(ROOT_URLCONF=None)
def test_missing_root_urlconf(self):
# Removing ROOT_URLCONF is safe, as override_settings will restore
# the previously defined settings.
del settings.ROOT_URLCONF
self.assertRaises(AttributeError, self.client.get, "/middleware_exceptions/view/")
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