diff --git a/pyramid/tests/test_config/test_i18n.py b/pyramid/tests/test_config/test_i18n.py
new file mode 100644
index 0000000000..3fdbf76e34
--- /dev/null
+++ b/pyramid/tests/test_config/test_i18n.py
@@ -0,0 +1,114 @@
+import os
+import unittest
+
+from pyramid.tests.test_config import dummyfactory
+
+here = os.path.dirname(__file__)
+locale = os.path.abspath(
+    os.path.join(here, '..', 'localeapp', 'locale'))
+locale2 = os.path.abspath(
+    os.path.join(here, '..', 'localeapp', 'locale2'))
+locale3 = os.path.abspath(
+    os.path.join(here, '..', 'localeapp', 'locale3'))
+
+class TestI18NConfiguratorMixin(unittest.TestCase):
+    def _makeOne(self, *arg, **kw):
+        from pyramid.config import Configurator
+        config = Configurator(*arg, **kw)
+        return config
+
+    def test_set_locale_negotiator(self):
+        from pyramid.interfaces import ILocaleNegotiator
+        config = self._makeOne(autocommit=True)
+        def negotiator(request): pass
+        config.set_locale_negotiator(negotiator)
+        self.assertEqual(config.registry.getUtility(ILocaleNegotiator),
+                         negotiator)
+
+    def test_set_locale_negotiator_dottedname(self):
+        from pyramid.interfaces import ILocaleNegotiator
+        config = self._makeOne(autocommit=True)
+        config.set_locale_negotiator(
+            'pyramid.tests.test_config.dummyfactory')
+        self.assertEqual(config.registry.getUtility(ILocaleNegotiator),
+                         dummyfactory)
+
+    def test_add_translation_dirs_missing_dir(self):
+        from pyramid.exceptions import ConfigurationError
+        config = self._makeOne()
+        self.assertRaises(ConfigurationError,
+                          config.add_translation_dirs,
+                          '/wont/exist/on/my/system')
+
+    def test_add_translation_dirs_no_specs(self):
+        from pyramid.interfaces import ITranslationDirectories
+        from pyramid.interfaces import IChameleonTranslate
+        config = self._makeOne()
+        config.add_translation_dirs()
+        self.assertEqual(config.registry.queryUtility(ITranslationDirectories),
+                         None)
+        self.assertEqual(config.registry.queryUtility(IChameleonTranslate),
+                         None)
+
+    def test_add_translation_dirs_asset_spec(self):
+        from pyramid.interfaces import ITranslationDirectories
+        config = self._makeOne(autocommit=True)
+        config.add_translation_dirs('pyramid.tests.localeapp:locale')
+        self.assertEqual(config.registry.getUtility(ITranslationDirectories),
+                         [locale])
+
+    def test_add_translation_dirs_asset_spec_existing_translation_dirs(self):
+        from pyramid.interfaces import ITranslationDirectories
+        config = self._makeOne(autocommit=True)
+        directories = ['abc']
+        config.registry.registerUtility(directories, ITranslationDirectories)
+        config.add_translation_dirs('pyramid.tests.localeapp:locale')
+        result = config.registry.getUtility(ITranslationDirectories)
+        self.assertEqual(result, [locale, 'abc'])
+
+    def test_add_translation_dirs_multiple_specs(self):
+        from pyramid.interfaces import ITranslationDirectories
+        config = self._makeOne(autocommit=True)
+        config.add_translation_dirs('pyramid.tests.localeapp:locale',
+                                    'pyramid.tests.localeapp:locale2')
+        self.assertEqual(config.registry.getUtility(ITranslationDirectories),
+                         [locale, locale2])
+
+    def test_add_translation_dirs_multiple_specs_multiple_calls(self):
+        from pyramid.interfaces import ITranslationDirectories
+        config = self._makeOne(autocommit=True)
+        config.add_translation_dirs('pyramid.tests.localeapp:locale',
+                                    'pyramid.tests.localeapp:locale2')
+        config.add_translation_dirs('pyramid.tests.localeapp:locale3')
+        self.assertEqual(config.registry.getUtility(ITranslationDirectories),
+                         [locale3, locale, locale2])
+
+    def test_add_translation_dirs_registers_chameleon_translate(self):
+        from pyramid.interfaces import IChameleonTranslate
+        from pyramid.threadlocal import manager
+        request = DummyRequest()
+        config = self._makeOne(autocommit=True)
+        manager.push({'request':request, 'registry':config.registry})
+        try:
+            config.add_translation_dirs('pyramid.tests.localeapp:locale')
+            translate = config.registry.getUtility(IChameleonTranslate)
+            self.assertEqual(translate('Approve'), u'Approve')
+        finally:
+            manager.pop()
+
+    def test_add_translation_dirs_abspath(self):
+        from pyramid.interfaces import ITranslationDirectories
+        config = self._makeOne(autocommit=True)
+        config.add_translation_dirs(locale)
+        self.assertEqual(config.registry.getUtility(ITranslationDirectories),
+                         [locale])
+
+class DummyRequest:
+    subpath = ()
+    matchdict = None
+    def __init__(self, environ=None):
+        if environ is None:
+            environ = {}
+        self.environ = environ
+        self.params = {}
+        self.cookies = {}
diff --git a/pyramid/tests/test_config/test_init.py b/pyramid/tests/test_config/test_init.py
index 7098e95111..154f249988 100644
--- a/pyramid/tests/test_config/test_init.py
+++ b/pyramid/tests/test_config/test_init.py
@@ -4,14 +4,6 @@
 
 import os
 
-here = os.path.dirname(__file__)
-locale = os.path.abspath(
-    os.path.join(here, '..', 'localeapp', 'locale'))
-locale2 = os.path.abspath(
-    os.path.join(here, '..', 'localeapp', 'locale2'))
-locale3 = os.path.abspath(
-    os.path.join(here, '..', 'localeapp', 'locale3'))
-
 from pyramid.tests.test_config import dummy_tween_factory
 from pyramid.tests.test_config import dummyfactory
 from pyramid.tests.test_config import dummy_include
@@ -812,92 +804,6 @@ def test_set_default_permission(self):
         self.assertEqual(config.registry.getUtility(IDefaultPermission),
                          'view')
 
-    def test_set_locale_negotiator(self):
-        from pyramid.interfaces import ILocaleNegotiator
-        config = self._makeOne(autocommit=True)
-        def negotiator(request): pass
-        config.set_locale_negotiator(negotiator)
-        self.assertEqual(config.registry.getUtility(ILocaleNegotiator),
-                         negotiator)
-
-    def test_set_locale_negotiator_dottedname(self):
-        from pyramid.interfaces import ILocaleNegotiator
-        config = self._makeOne(autocommit=True)
-        config.set_locale_negotiator(
-            'pyramid.tests.test_config.dummyfactory')
-        self.assertEqual(config.registry.getUtility(ILocaleNegotiator),
-                         dummyfactory)
-
-    def test_add_translation_dirs_missing_dir(self):
-        from pyramid.exceptions import ConfigurationError
-        config = self._makeOne()
-        self.assertRaises(ConfigurationError,
-                          config.add_translation_dirs,
-                          '/wont/exist/on/my/system')
-
-    def test_add_translation_dirs_no_specs(self):
-        from pyramid.interfaces import ITranslationDirectories
-        from pyramid.interfaces import IChameleonTranslate
-        config = self._makeOne()
-        config.add_translation_dirs()
-        self.assertEqual(config.registry.queryUtility(ITranslationDirectories),
-                         None)
-        self.assertEqual(config.registry.queryUtility(IChameleonTranslate),
-                         None)
-
-    def test_add_translation_dirs_asset_spec(self):
-        from pyramid.interfaces import ITranslationDirectories
-        config = self._makeOne(autocommit=True)
-        config.add_translation_dirs('pyramid.tests.localeapp:locale')
-        self.assertEqual(config.registry.getUtility(ITranslationDirectories),
-                         [locale])
-
-    def test_add_translation_dirs_asset_spec_existing_translation_dirs(self):
-        from pyramid.interfaces import ITranslationDirectories
-        config = self._makeOne(autocommit=True)
-        directories = ['abc']
-        config.registry.registerUtility(directories, ITranslationDirectories)
-        config.add_translation_dirs('pyramid.tests.localeapp:locale')
-        result = config.registry.getUtility(ITranslationDirectories)
-        self.assertEqual(result, [locale, 'abc'])
-
-    def test_add_translation_dirs_multiple_specs(self):
-        from pyramid.interfaces import ITranslationDirectories
-        config = self._makeOne(autocommit=True)
-        config.add_translation_dirs('pyramid.tests.localeapp:locale',
-                                    'pyramid.tests.localeapp:locale2')
-        self.assertEqual(config.registry.getUtility(ITranslationDirectories),
-                         [locale, locale2])
-
-    def test_add_translation_dirs_multiple_specs_multiple_calls(self):
-        from pyramid.interfaces import ITranslationDirectories
-        config = self._makeOne(autocommit=True)
-        config.add_translation_dirs('pyramid.tests.localeapp:locale',
-                                    'pyramid.tests.localeapp:locale2')
-        config.add_translation_dirs('pyramid.tests.localeapp:locale3')
-        self.assertEqual(config.registry.getUtility(ITranslationDirectories),
-                         [locale3, locale, locale2])
-
-    def test_add_translation_dirs_registers_chameleon_translate(self):
-        from pyramid.interfaces import IChameleonTranslate
-        from pyramid.threadlocal import manager
-        request = DummyRequest()
-        config = self._makeOne(autocommit=True)
-        manager.push({'request':request, 'registry':config.registry})
-        try:
-            config.add_translation_dirs('pyramid.tests.localeapp:locale')
-            translate = config.registry.getUtility(IChameleonTranslate)
-            self.assertEqual(translate('Approve'), u'Approve')
-        finally:
-            manager.pop()
-
-    def test_add_translation_dirs_abspath(self):
-        from pyramid.interfaces import ITranslationDirectories
-        config = self._makeOne(autocommit=True)
-        config.add_translation_dirs(locale)
-        self.assertEqual(config.registry.getUtility(ITranslationDirectories),
-                         [locale])
-
     def test_add_renderer(self):
         from pyramid.interfaces import IRendererFactory
         config = self._makeOne(autocommit=True)
@@ -1559,7 +1465,6 @@ def test_global_registries(self):
         global_registries.remove(config2.registry)
         self.assertEqual(global_registries.last, config1.registry)
 
-
 class DummyRequest:
     subpath = ()
     matchdict = None