diff --git a/tests/__init__.py b/tests/__init__.py
index 6d1f451..53e0d9b 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -5,20 +5,24 @@ from tests.test_app.sqlalchemy import create_app
 
 class SecurityTest(TestCase):
 
+    APP_KWARGS = {
+        'register_blueprint': True,
+    }
     AUTH_CONFIG = None
 
     def setUp(self):
         super(SecurityTest, self).setUp()
 
-        app = self._create_app(self.AUTH_CONFIG or {})
+        app_kwargs = self.APP_KWARGS
+        app = self._create_app(self.AUTH_CONFIG or {}, **app_kwargs)
         app.debug = False
         app.config['TESTING'] = True
 
         self.app = app
         self.client = app.test_client()
 
-    def _create_app(self, auth_config, register_blueprint=True):
-        return create_app(auth_config, register_blueprint)
+    def _create_app(self, auth_config, **kwargs):
+        return create_app(auth_config, **kwargs)
 
     def _get(self, route, content_type=None, follow_redirects=None, headers=None):
         return self.client.get(route, follow_redirects=follow_redirects,
diff --git a/tests/configured_tests.py b/tests/configured_tests.py
index 45f0fc6..0c6b11d 100644
--- a/tests/configured_tests.py
+++ b/tests/configured_tests.py
@@ -468,13 +468,14 @@ class AsyncMailTaskTests(SecurityTest):
 
 class NoBlueprintTests(SecurityTest):
 
+    APP_KWARGS = {
+        'register_blueprint': False,
+    }
+
     AUTH_CONFIG = {
         'USER_COUNT': 1
     }
 
-    def _create_app(self, auth_config):
-        return super(NoBlueprintTests, self)._create_app(auth_config, False)
-
     def test_login_endpoint_is_404(self):
         r = self._get('/login')
         self.assertEqual(404, r.status_code)
@@ -483,3 +484,18 @@ class NoBlueprintTests(SecurityTest):
         auth = 'Basic ' + base64.b64encode("matt@lp.com:password")
         r = self._get('/http', headers={'Authorization': auth})
         self.assertIn('HTTP Authentication', r.data)
+
+
+class ExtendFormsTest(SecurityTest):
+
+    APP_KWARGS = {
+    }
+
+    AUTH_CONFIG = {
+        'SECURITY_REGISTERABLE': True,
+    }
+
+    def test_register(self):
+        r = self._get('/register')
+        self.assertIn('<h1>Register</h1>', r.data)
+
diff --git a/tests/functional_tests.py b/tests/functional_tests.py
index c9fd8da..49e9be6 100644
--- a/tests/functional_tests.py
+++ b/tests/functional_tests.py
@@ -201,9 +201,9 @@ class DefaultSecurityTests(SecurityTest):
 
 class MongoEngineSecurityTests(DefaultSecurityTests):
 
-    def _create_app(self, auth_config):
+    def _create_app(self, auth_config, **kwargs):
         from tests.test_app.mongoengine import create_app
-        return create_app(auth_config)
+        return create_app(auth_config, **kwargs)
 
 
 class DefaultDatastoreTests(SecurityTest):
@@ -231,6 +231,6 @@ class DefaultDatastoreTests(SecurityTest):
 
 class MongoEngineDatastoreTests(DefaultDatastoreTests):
 
-    def _create_app(self, auth_config):
+    def _create_app(self, auth_config, **kwargs):
         from tests.test_app.mongoengine import create_app
-        return create_app(auth_config)
+        return create_app(auth_config, **kwargs)
diff --git a/tests/test_app/mongoengine.py b/tests/test_app/mongoengine.py
index 52377f2..d40f666 100644
--- a/tests/test_app/mongoengine.py
+++ b/tests/test_app/mongoengine.py
@@ -13,7 +13,7 @@ from flask.ext.security import Security, UserMixin, RoleMixin, \
 from tests.test_app import create_app as create_base_app, populate_data, \
      add_context_processors
 
-def create_app(config):
+def create_app(config, **kwargs):
     app = create_base_app(config)
 
     app.config['MONGODB_SETTINGS'] = dict(
@@ -46,7 +46,7 @@ def create_app(config):
         Role.drop_collection()
         populate_data(app.config.get('USER_COUNT', None))
 
-    app.security = Security(app, MongoEngineUserDatastore(db, User, Role))
+    app.security = Security(app, datastore=MongoEngineUserDatastore(db, User, Role), **kwargs)
 
     add_context_processors(app.security)
 
diff --git a/tests/test_app/sqlalchemy.py b/tests/test_app/sqlalchemy.py
index 0cf2e9c..ec23b01 100644
--- a/tests/test_app/sqlalchemy.py
+++ b/tests/test_app/sqlalchemy.py
@@ -14,10 +14,11 @@ from flask.ext.security import Security, UserMixin, RoleMixin, \
 from tests.test_app import create_app as create_base_app, populate_data, \
      add_context_processors
 
-def create_app(config, register_blueprint=True):
+def create_app(config, **kwargs):
     app = create_base_app(config)
 
-    app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql://root@localhost/flask_security_test'
+    #app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql://root@localhost/flask_security_test'
+    app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite://'
 
     db = SQLAlchemy(app)
 
@@ -50,8 +51,7 @@ def create_app(config, register_blueprint=True):
         db.create_all()
         populate_data(app.config.get('USER_COUNT', None))
 
-    app.security = Security(app, SQLAlchemyUserDatastore(db, User, Role),
-                            register_blueprint=register_blueprint)
+    app.security = Security(app, datastore=SQLAlchemyUserDatastore(db, User, Role), **kwargs)
 
     add_context_processors(app.security)