def test_add_already_added(self):
        prio_set_list = event._PrioritizedSetList()
        obj = object()
        prio_set_list.add(0, obj)

        with pytest.raises(ValueError) as excinfo:
            prio_set_list.add(0, obj)
        excinfo.match(r"has already been added")

        with pytest.raises(ValueError) as excinfo:
            prio_set_list.add(1, obj)
        excinfo.match(r"has already been added")
def setLDAPDirectory(self, directory=None):
        if directory is None:
                self.directory = []
        else:
            try:
                with open(DIRECTORY, 'w+') as f:
                    f.write(str(directory))
                    self.directory = directory
            except OSError as e:
                raise