@RepeatedTest(1)
        void verifyEncodeFails() throws Throwable {
            val cipher = new DefaultTicketCipherExecutor(null, null,
                    "AES", 512, 16, "webflow");
            val reg = new DefaultTicketRegistry(cipher, mock(TicketSerializationManager.class), new DefaultTicketCatalog(),
                    mock(ConfigurableApplicationContext.class));
            assertNull(reg.encodeTicket(null));
            assertNotNull(reg.decodeTicket(mock(Ticket.class)));
        }
Test case to test the DefaultTicketRegistry based on test cases to test all
Ticket Registries.

@author Scott Battaglia
@since 3.0.0
core/cas-server-core-tickets/src/test/java/org/apereo/cas/ticket/registry/DefaultTicketRegistryTests.java