Index: CherryPy-3.1.2/cherrypy/test/test_session.py
===================================================================
--- CherryPy-3.1.2.orig/cherrypy/test/test_session.py
+++ CherryPy-3.1.2/cherrypy/test/test_session.py
@@ -10,6 +10,7 @@ import time
 
 import cherrypy
 from cherrypy.lib import sessions
+from cherrypy.lib.http import response_codes
 
 def http_methods_allowed(methods=['GET', 'HEAD']):
     method = cherrypy.request.method.upper()
@@ -254,7 +255,7 @@ class SessionTest(helper.CPWebCase):
         # before_finalize (save) and on_end (close). So the session
         # code has to survive calling save/close without init.
         self.getPage('/restricted', self.cookies, method='POST')
-        self.assertErrorPage(405, "Specified method is invalid for this server.")
+        self.assertErrorPage(405, response_codes[405][1])
     
     def test_6_regenerate(self):
         self.getPage('/testStr')