@Test
        void verifyOperation() {
            val spec = new CasProtocolVersionValidationSpecification(
                Set.of(CasProtocolVersions.CAS10), tenantExtractor);
            val registeredService = mock(RegisteredService.class);
            val assertion = CoreValidationTestUtils.getAssertion(registeredService);
            assertTrue(spec.isSatisfiedBy(assertion, new MockHttpServletRequest()));
        }
This is {@link CasProtocolVersionValidationSpecificationTests}.

@author Misagh Moayyed
@since 6.6.0
core/cas-server-core-validation/src/test/java/org/apereo/cas/validation/CasProtocolVersionValidationSpecificationTests.java