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			786 lines
		
	
	
	
		
			39 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			786 lines
		
	
	
	
		
			39 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
import sys
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from django.conf import settings
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from django.core.signals import got_request_exception
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from django.http import HttpResponse
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from django.template.response import TemplateResponse
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from django.template import Template
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from django.test import TestCase
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class TestException(Exception):
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    pass
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# A middleware base class that tracks which methods have been called
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class TestMiddleware(object):
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    def __init__(self):
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        self.process_request_called = False
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        self.process_view_called = False
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        self.process_response_called = False
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        self.process_template_response_called = False
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        self.process_exception_called = False
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    def process_request(self, request):
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        self.process_request_called = True
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    def process_view(self, request, view_func, view_args, view_kwargs):
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        self.process_view_called = True
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    def process_template_response(self, request, response):
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        self.process_template_response_called = True
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        return response
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    def process_response(self, request, response):
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        self.process_response_called = True
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        return response
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    def process_exception(self, request, exception):
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        self.process_exception_called = True
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# Middleware examples that do the right thing
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class RequestMiddleware(TestMiddleware):
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    def process_request(self, request):
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        super(RequestMiddleware, self).process_request(request)
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        return HttpResponse('Request Middleware')
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class ViewMiddleware(TestMiddleware):
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    def process_view(self, request, view_func, view_args, view_kwargs):
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        super(ViewMiddleware, self).process_view(request, view_func, view_args, view_kwargs)
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        return HttpResponse('View Middleware')
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class ResponseMiddleware(TestMiddleware):
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    def process_response(self, request, response):
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        super(ResponseMiddleware, self).process_response(request, response)
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        return HttpResponse('Response Middleware')
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class TemplateResponseMiddleware(TestMiddleware):
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    def process_template_response(self, request, response):
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        super(TemplateResponseMiddleware, self).process_template_response(request, response)
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        return TemplateResponse(request, Template('Template Response Middleware'))
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class ExceptionMiddleware(TestMiddleware):
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    def process_exception(self, request, exception):
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        super(ExceptionMiddleware, self).process_exception(request, exception)
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        return HttpResponse('Exception Middleware')
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# Sample middlewares that raise exceptions
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class BadRequestMiddleware(TestMiddleware):
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    def process_request(self, request):
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        super(BadRequestMiddleware, self).process_request(request)
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        raise TestException('Test Request Exception')
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class BadViewMiddleware(TestMiddleware):
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    def process_view(self, request, view_func, view_args, view_kwargs):
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        super(BadViewMiddleware, self).process_view(request, view_func, view_args, view_kwargs)
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        raise TestException('Test View Exception')
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class BadTemplateResponseMiddleware(TestMiddleware):
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    def process_template_response(self, request, response):
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        super(BadTemplateResponseMiddleware, self).process_template_response(request, response)
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        raise TestException('Test Template Response Exception')
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class BadResponseMiddleware(TestMiddleware):
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    def process_response(self, request, response):
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        super(BadResponseMiddleware, self).process_response(request, response)
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        raise TestException('Test Response Exception')
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class BadExceptionMiddleware(TestMiddleware):
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    def process_exception(self, request, exception):
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        super(BadExceptionMiddleware, self).process_exception(request, exception)
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        raise TestException('Test Exception Exception')
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class BaseMiddlewareExceptionTest(TestCase):
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    urls = 'middleware_exceptions.urls'
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    def setUp(self):
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        self.exceptions = []
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        got_request_exception.connect(self._on_request_exception)
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        self.client.handler.load_middleware()
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    def tearDown(self):
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        got_request_exception.disconnect(self._on_request_exception)
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        self.exceptions = []
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    def _on_request_exception(self, sender, request, **kwargs):
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        self.exceptions.append(sys.exc_info())
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    def _add_middleware(self, middleware):
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        self.client.handler._request_middleware.insert(0, middleware.process_request)
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        self.client.handler._view_middleware.insert(0, middleware.process_view)
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        self.client.handler._template_response_middleware.append(middleware.process_template_response)
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        self.client.handler._response_middleware.append(middleware.process_response)
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        self.client.handler._exception_middleware.append(middleware.process_exception)
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    def assert_exceptions_handled(self, url, errors, extra_error=None):
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        try:
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            response = self.client.get(url)
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        except TestException:
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            # Test client intentionally re-raises any exceptions being raised
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            # during request handling. Hence actual testing that exception was
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            # properly handled is done by relying on got_request_exception
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            # signal being sent.
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            pass
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        except Exception as e:
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            if type(extra_error) != type(e):
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                self.fail("Unexpected exception: %s" % e)
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        self.assertEqual(len(self.exceptions), len(errors))
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        for i, error in enumerate(errors):
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            exception, value, tb = self.exceptions[i]
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            self.assertEqual(value.args, (error, ))
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    def assert_middleware_usage(self, middleware, request, view, template_response, response, exception):
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        self.assertEqual(middleware.process_request_called, request)
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        self.assertEqual(middleware.process_view_called, view)
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        self.assertEqual(middleware.process_template_response_called, template_response)
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        self.assertEqual(middleware.process_response_called, response)
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        self.assertEqual(middleware.process_exception_called, exception)
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class MiddlewareTests(BaseMiddlewareExceptionTest):
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    def test_process_request_middleware(self):
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        pre_middleware = TestMiddleware()
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        middleware = RequestMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/view/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True,  False, False, True, False)
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        self.assert_middleware_usage(middleware,      True,  False, False, True, False)
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        self.assert_middleware_usage(post_middleware, False, False, False, True, False)
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    def test_process_view_middleware(self):
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        pre_middleware = TestMiddleware()
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        middleware = ViewMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/view/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True, True,  False, True, False)
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        self.assert_middleware_usage(middleware,      True, True,  False, True, False)
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        self.assert_middleware_usage(post_middleware, True, False, False, True, False)
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    def test_process_response_middleware(self):
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        pre_middleware = TestMiddleware()
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        middleware = ResponseMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/view/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True, True, False, True, False)
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        self.assert_middleware_usage(middleware,      True, True, False, True, False)
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        self.assert_middleware_usage(post_middleware, True, True, False, True, False)
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    def test_process_template_response_middleware(self):
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        pre_middleware = TestMiddleware()
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        middleware = TemplateResponseMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/template_response/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True, True, True, True, False)
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        self.assert_middleware_usage(middleware,      True, True, True, True, False)
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        self.assert_middleware_usage(post_middleware, True, True, True, True, False)
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    def test_process_exception_middleware(self):
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        pre_middleware = TestMiddleware()
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        middleware = ExceptionMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/view/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True, True, False, True, False)
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        self.assert_middleware_usage(middleware,      True, True, False, True, False)
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        self.assert_middleware_usage(post_middleware, True, True, False, True, False)
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    def test_process_request_middleware_not_found(self):
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        pre_middleware = TestMiddleware()
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        middleware = RequestMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True,  False, False, True, False)
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        self.assert_middleware_usage(middleware,      True,  False, False, True, False)
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        self.assert_middleware_usage(post_middleware, False, False, False, True, False)
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    def test_process_view_middleware_not_found(self):
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        pre_middleware = TestMiddleware()
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        middleware = ViewMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True, True,  False, True, False)
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        self.assert_middleware_usage(middleware,      True, True,  False, True, False)
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        self.assert_middleware_usage(post_middleware, True, False, False, True, False)
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    def test_process_template_response_middleware_not_found(self):
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        pre_middleware = TestMiddleware()
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        middleware = TemplateResponseMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True, True, False, True, True)
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        self.assert_middleware_usage(middleware,      True, True, False, True, True)
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        self.assert_middleware_usage(post_middleware, True, True, False, True, True)
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    def test_process_response_middleware_not_found(self):
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        pre_middleware = TestMiddleware()
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        middleware = ResponseMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True, True, False, True, True)
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        self.assert_middleware_usage(middleware,      True, True, False, True, True)
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        self.assert_middleware_usage(post_middleware, True, True, False, True, True)
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    def test_process_exception_middleware_not_found(self):
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        pre_middleware = TestMiddleware()
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        middleware = ExceptionMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/not_found/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True, True, False, True, False)
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        self.assert_middleware_usage(middleware,      True, True, False, True, True)
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        self.assert_middleware_usage(post_middleware, True, True, False, True, True)
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    def test_process_request_middleware_exception(self):
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        pre_middleware = TestMiddleware()
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        middleware = RequestMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/error/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True,  False, False, True, False)
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        self.assert_middleware_usage(middleware,      True,  False, False, True, False)
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        self.assert_middleware_usage(post_middleware, False, False, False, True, False)
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    def test_process_view_middleware_exception(self):
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        pre_middleware = TestMiddleware()
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        middleware = ViewMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/error/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True, True,  False, True, False)
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        self.assert_middleware_usage(middleware,      True, True,  False, True, False)
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        self.assert_middleware_usage(post_middleware, True, False, False, True, False)
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    def test_process_response_middleware_exception(self):
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        pre_middleware = TestMiddleware()
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        middleware = ResponseMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/error/', ['Error in view'], Exception())
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True, True, False, True, True)
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        self.assert_middleware_usage(middleware,      True, True, False, True, True)
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        self.assert_middleware_usage(post_middleware, True, True, False, True, True)
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 | 
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    def test_process_exception_middleware_exception(self):
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        pre_middleware = TestMiddleware()
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        middleware = ExceptionMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/error/', [])
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						|
 | 
						|
        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True, True, False, True, False)
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        self.assert_middleware_usage(middleware,      True, True, False, True, True)
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        self.assert_middleware_usage(post_middleware, True, True, False, True, True)
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 | 
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    def test_process_request_middleware_null_view(self):
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        pre_middleware = TestMiddleware()
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        middleware = RequestMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/null_view/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True,  False, False, True, False)
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        self.assert_middleware_usage(middleware,      True,  False, False, True, False)
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        self.assert_middleware_usage(post_middleware, False, False, False, True, False)
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    def test_process_view_middleware_null_view(self):
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        pre_middleware = TestMiddleware()
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        middleware = ViewMiddleware()
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        post_middleware = TestMiddleware()
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        self._add_middleware(post_middleware)
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        self._add_middleware(middleware)
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        self._add_middleware(pre_middleware)
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        self.assert_exceptions_handled('/middleware_exceptions/null_view/', [])
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        # Check that the right middleware methods have been invoked
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        self.assert_middleware_usage(pre_middleware,  True, True,  False, True, False)
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        self.assert_middleware_usage(middleware,      True, True,  False, True, False)
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        self.assert_middleware_usage(post_middleware, True, False, False, True, False)
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 | 
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    def test_process_response_middleware_null_view(self):
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        pre_middleware = TestMiddleware()
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        middleware = ResponseMiddleware()
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        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'
 | 
						|
 | 
						|
    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
 |