diff -r 058bb3dc685f -r 0b59724cb3f2 cubicweb/sobjects/test/unittest_register_user.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cubicweb/sobjects/test/unittest_register_user.py	Sat Jan 16 13:48:51 2016 +0100
@@ -0,0 +1,95 @@
+# copyright 2003-2014 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
+#
+# This file is part of CubicWeb.
+#
+# CubicWeb is free software: you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation, either version 2.1 of the License, or (at your option)
+# any later version.
+#
+# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
+"""unittest for cubicweb.dbapi"""
+
+from cubicweb import ValidationError
+from cubicweb.web import Unauthorized
+from cubicweb.devtools.testlib import CubicWebTC
+
+
+class RegisterUserTC(CubicWebTC):
+
+    def test_register_user_service(self):
+        acc = self.admin_access
+        with acc.client_cnx() as cnx:
+            cnx.call_service('register_user', login=u'foo1', password=u'bar1',
+                             email=u'foo1@bar1.com', firstname=u'Foo1',
+                             surname=u'Bar1')
+
+        acc = self.new_access('anon')
+        with acc.client_cnx() as cnx:
+            self.assertRaises(Unauthorized, cnx.call_service, 'register_user',
+                              login=u'foo2', password=u'bar2',
+                              email=u'foo2@bar2.com', firstname=u'Foo2', surname=u'Bar2')
+
+        with self.repo.internal_cnx() as cnx:
+            cnx.call_service('register_user', login=u'foo3',
+                             password=u'bar3', email=u'foo3@bar3.com',
+                             firstname=u'Foo3', surname=u'Bar3')
+            # same login
+            with self.assertRaises(ValidationError):
+                cnx.call_service('register_user', login=u'foo3',
+                                 password=u'bar3')
+
+    def test_register_user_attributes(self):
+        with self.repo.internal_cnx() as cnx:
+            cnx.call_service('register_user', login=u'foo3',
+                             password=u'bar3', email=u'foo3@bar3.com',
+                             firstname=u'Foo3', surname=u'Bar3')
+            cnx.commit()
+
+        with self.admin_access.client_cnx() as cnx:
+            user = cnx.find('CWUser', login=u'foo3').one()
+            self.assertEqual(user.firstname, u'Foo3')
+            self.assertEqual(user.use_email[0].address, u'foo3@bar3.com')
+
+    def test_register_user_groups(self):
+        with self.repo.internal_cnx() as cnx:
+            # default
+            cnx.call_service('register_user', login=u'foo_user',
+                             password=u'bar_user', email=u'foo_user@bar_user.com',
+                             firstname=u'Foo_user', surname=u'Bar_user')
+
+            # group kwarg
+            cnx.call_service('register_user', login=u'foo_admin',
+                             password=u'bar_admin', email=u'foo_admin@bar_admin.com',
+                             firstname=u'Foo_admin', surname=u'Bar_admin',
+                             groups=('managers', 'users'))
+
+            # class attribute
+            from cubicweb.sobjects import services
+            services.RegisterUserService.default_groups = ('guests',)
+            cnx.call_service('register_user', login=u'foo_guest',
+                             password=u'bar_guest', email=u'foo_guest@bar_guest.com',
+                             firstname=u'Foo_guest', surname=u'Bar_guest')
+            cnx.commit()
+
+        with self.admin_access.client_cnx() as cnx:
+            user = cnx.find('CWUser', login=u'foo_user').one()
+            self.assertEqual([g.name for g in user.in_group], ['users'])
+
+            admin = cnx.find('CWUser', login=u'foo_admin').one()
+            self.assertEqual(sorted(g.name for g in admin.in_group), ['managers', 'users'])
+
+            guest = cnx.find('CWUser', login=u'foo_guest').one()
+            self.assertEqual([g.name for g in guest.in_group], ['guests'])
+
+
+if __name__ == '__main__':
+    from logilab.common.testlib import unittest_main
+    unittest_main()