@Test
    void verifyOperation() {
        val ticket = mock(TicketGrantingTicket.class);
        when(ticket.getDescendantTickets()).thenCallRealMethod();
        assertTrue(ticket.getDescendantTickets().isEmpty());
    }
This is {@link TicketGrantingTicketTests}.

@author Misagh Moayyed
@since 6.3.0
api/cas-server-core-api-ticket/src/test/java/org/apereo/cas/ticket/TicketGrantingTicketTests.java