def test_closed_claim(self):
        """
        get_first_claim should return None if claim case is closed
        """
        claim_id = claim_case(DOMAIN, self.restore_user, self.host_case_id,
                              host_type=self.host_case_type, host_name=self.host_case_name)
        self._close_case(claim_id)
        first_claim = get_first_claim(DOMAIN, self.user.user_id, self.host_case_id)
        self.assertIsNone(first_claim)