def test_group(self):
user = User(first_name="John", last_name="Test User", email="*****@*****.**", password="******")
group = Group(name="Group 1")
user.join(group)
self.assert_(user.is_member_of(group))
self.assertEquals(1, len(group.members))
self.assertEquals(1, len(user.groups))
self.assertEqual([user], group.members)
self.assertEqual([group], user.groups)
user.leave(group)
self.assert_(not user.is_member_of(group))
self.assertEquals(0, len(group.members))
self.assertEquals(0, len(user.groups))
