Fixed #12571 -- Attached originating WSGIRequest to test client responses.

Originating WSGIRequests are now attached to the ``wsgi_request`` attribute of
the ``HttpResponse`` returned by the testing client.

Thanks rvdrijst for the suggestion.

django/test/client.py

@@ -83,10 +83,9 @@ def closing_iterator_wrapper(iterable, close):
 
 class ClientHandler(BaseHandler):
     """
-    A HTTP Handler that can be used for testing purposes.
+    A HTTP Handler that can be used for testing purposes. Uses the WSGI
-    Uses the WSGI interface to compose requests, but returns the raw
+    interface to compose requests, but returns the raw HttpResponse object with
-    HttpResponse object with the originating WSGIRequest attached to its
+    the originating WSGIRequest attached to its ``wsgi_request`` attribute.
-    ``request_instance`` attribute.
     """
     def __init__(self, enforce_csrf_checks=True, *args, **kwargs):
         self.enforce_csrf_checks = enforce_csrf_checks
@@ -112,7 +111,7 @@ class ClientHandler(BaseHandler):
         response = self.get_response(request)
         # Attach the originating request to the response so that it could be
         # later retrieved.
-        response.request_instance = request
+        response.wsgi_request = request
 
         # We're emulating a WSGI server; we must call the close method
         # on completion.
@@ -555,7 +554,7 @@ class Client(RequestFactory):
             engine = import_module(settings.SESSION_ENGINE)
 
             # Create a fake request that goes through request middleware
-            request = self.request().request_instance
+            request = self.request().wsgi_request
 
             if self.session:
                 request.session = self.session
@@ -589,7 +588,7 @@ class Client(RequestFactory):
         Causes the authenticated user to be logged out.
         """
         # Create a fake request that goes through request middleware
-        request = self.request().request_instance
+        request = self.request().wsgi_request
 
         engine = import_module(settings.SESSION_ENGINE)
         UserModel = get_user_model()

docs/releases/1.7.txt

@@ -579,6 +579,9 @@ Tests
 * :meth:`~django.test.TransactionTestCase.assertNumQueries` now prints
   out the list of executed queries if the assertion fails.
 
+* The ``WSGIRequest`` instance generated by the test handler is now attached to
+  the :attr:`django.test.Response.wsgi_request` attribute.
+
 Validators
 ^^^^^^^^^^
 

docs/topics/testing/tools.txt

@@ -427,6 +427,13 @@ Specifically, a ``Response`` object has the following attributes:
 
         The request data that stimulated the response.
 
+    .. attribute:: wsgi_request
+
+        .. versionadded:: 1.7
+
+        The ``WSGIRequest`` instance generated by the test handler that
+        generated the response.
+
     .. attribute:: status_code
 
         The HTTP status of the response, as an integer. See

tests/test_client/tests.py

@@ -84,6 +84,20 @@ class ClientTest(TestCase):
 
         self.assertEqual(response['X-DJANGO-TEST'], 'Slartibartfast')
 
+    def test_response_attached_request(self):
+        """
+        Check that the returned response has a ``request`` attribute with the
+        originating environ dict and a ``wsgi_request`` with the originating
+        ``WSGIRequest`` instance.
+        """
+        response = self.client.get("/test_client/header_view/")
+
+        self.assertTrue(hasattr(response, 'request'))
+        self.assertTrue(hasattr(response, 'wsgi_request'))
+        for key, value in response.request.items():
+            self.assertIn(key, response.wsgi_request.environ)
+            self.assertEqual(response.wsgi_request.environ[key], value)
+
     def test_raw_post(self):
         "POST raw data (with a content type) to a view"
         test_doc = """<?xml version="1.0" encoding="utf-8"?><library><book><title>Blink</title><author>Malcolm Gladwell</author></book></library>"""