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Diffstat (limited to 'tests/middleware_exceptions/tests.py')
| -rw-r--r-- | tests/middleware_exceptions/tests.py | 786 |
1 files changed, 786 insertions, 0 deletions
diff --git a/tests/middleware_exceptions/tests.py b/tests/middleware_exceptions/tests.py new file mode 100644 index 0000000000..586aa0f004 --- /dev/null +++ b/tests/middleware_exceptions/tests.py @@ -0,0 +1,786 @@ +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 + +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 = 'regressiontests.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: + response = 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 regressiontests.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 regressiontests.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 regressiontests.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 regressiontests.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 = 'regressiontests.middleware_exceptions.urls' + + def test_missing_root_urlconf(self): + try: + original_ROOT_URLCONF = settings.ROOT_URLCONF + del settings.ROOT_URLCONF + except AttributeError: + original_ROOT_URLCONF = _missing + self.assertRaises(AttributeError, + self.client.get, "/middleware_exceptions/view/" + ) + + if original_ROOT_URLCONF is not _missing: + settings.ROOT_URLCONF = original_ROOT_URLCONF |