fix tests

Author: Tobias Zanke

djangodav/views/tests.py

@@ -327,7 +327,7 @@ def test_get_obj(self):
         self.assertEqual(resp['Last-Modified'], "Wed, 24 Dec 2014 06:00:00 +0000")
         self.assertEqual(resp.content, "C" * 42)
 
-    @patch('djangodav.views.render_to_response', Mock(return_value=HttpResponse('listing')))
+    @patch('django.views.generic.get.TemplateView.get', Mock(return_value=HttpResponse('listing')))
     def test_head_object(self):
         path = '/object.txt'
         v = DavView(path=path, base_url='/base', _allowed_methods=Mock(return_value=['ALL']), acl_class=FullAcl)
@@ -338,7 +338,7 @@ def test_head_object(self):
         self.assertEqual("", resp.content)
         self.assertEqual("0", resp['Content-Length'])
 
-    @patch('djangodav.views.views.render_to_response', Mock(return_value=HttpResponse('listing')))
+    @patch('django.views.generic.get.TemplateView.get', Mock(return_value=HttpResponse('listing')))
     def test_get_collection(self):
         path = '/collection/'
         v = DavView(path=path, acl_class=FullAcl, base_url='/base', _allowed_methods=Mock(return_value=['ALL']))