public ServiceTicket grantServiceTicket(final Service service,
                                            final TicketTrackingPolicy trackingPolicy) throws Throwable {
        return grantServiceTicket(ID_GENERATOR.getNewTicketId("ST"), service, null,
            false, trackingPolicy);
    }
Mock ticket-granting ticket.

@author Marvin S. Addison
@since 3.0.0
core/cas-server-core-tickets/src/test/java/org/apereo/cas/mock/MockTicketGrantingTicket.java