- An include could not set a root factory successfully because the

  Configurator constructor unconditionally registered one that would be
  treated as if it were "the word of the user".

3 files changed, 17 insertions, 5 deletions

diff --git a/CHANGES.txt b/CHANGES.txt
index 71b4fbecc..b1aa43539 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -8,6 +8,10 @@ Next release
 
 - Mako rendering exceptions had the wrong value for an error message.
 
+- An include could not set a root factory successfully because the
+  Configurator constructor unconditionally registered one that would be
+  treated as if it were "the word of the user".
+
 1.2a1 (2011-08-24)
 ==================
 
diff --git a/pyramid/config/__init__.py b/pyramid/config/__init__.py
index dc592977b..7575f4b2b 100644
--- a/pyramid/config/__init__.py
+++ b/pyramid/config/__init__.py
@@ -334,7 +334,8 @@ class Configurator(
         for name, renderer in renderers:
             self.add_renderer(name, renderer)
 
-        self.set_root_factory(root_factory)
+        if root_factory is not None:
+            self.set_root_factory(root_factory)
 
         if locale_negotiator:
             self.set_locale_negotiator(locale_negotiator)
diff --git a/pyramid/tests/test_config/test_init.py b/pyramid/tests/test_config/test_init.py
index 0a787275d..da4e9522e 100644
--- a/pyramid/tests/test_config/test_init.py
+++ b/pyramid/tests/test_config/test_init.py
@@ -201,7 +201,15 @@ class ConfiguratorTests(unittest.TestCase):
         config = self._makeOne()
         self.assertEqual(config.registry.queryUtility(IRootFactory), None)
         config.commit()
-        self.assertTrue(config.registry.getUtility(IRootFactory))
+        self.assertEqual(config.registry.queryUtility(IRootFactory), None)
+
+    def test_ctor_with_root_factory(self):
+        from pyramid.interfaces import IRootFactory
+        factory = object()
+        config = self._makeOne(root_factory=factory)
+        self.assertEqual(config.registry.queryUtility(IRootFactory), None)
+        config.commit()
+        self.assertEqual(config.registry.queryUtility(IRootFactory), factory)
 
     def test_ctor_alternate_renderers(self):
         from pyramid.interfaces import IRendererFactory
@@ -512,15 +520,14 @@ class ConfiguratorTests(unittest.TestCase):
         config.setup_registry(authorization_policy=policy)
         config = self.assertRaises(ConfigurationExecutionError, config.commit)
 
-    def test_setup_registry_default_root_factory(self):
+    def test_setup_registry_no_default_root_factory(self):
         from pyramid.registry import Registry
         from pyramid.interfaces import IRootFactory
         reg = Registry()
         config = self._makeOne(reg)
         config.setup_registry()
-        self.assertEqual(reg.queryUtility(IRootFactory), None)
         config.commit()
-        self.assertTrue(reg.getUtility(IRootFactory))
+        self.assertEqual(reg.queryUtility(IRootFactory), None)
 
     def test_setup_registry_dottedname_root_factory(self):
         from pyramid.registry import Registry