def test_modified_is_older_than_created(self, session): binary = Binary( 'ceph-1.0.rpm', self.p, distro='centos', distro_version='7', arch='x86_64', ) session.commit() initial_created = binary.created.time() binary.ref = 'master' session.commit() binary = Binary.get(1) assert initial_created < binary.modified.time()