@Test
        void verifyOperation() throws Exception {
            val keystore = oidcFederationWebKeystoreService.toJWKSet();
            assertNotNull(keystore);
            val jwksFile = SpringExpressionLanguageValueResolver.getInstance()
                .resolve(casProperties.getAuthn().getOidc().getFederation().getJwksFile());
            val resource = ResourceUtils.getRawResourceFrom(jwksFile);
            assertTrue(resource.exists());
        }
This is {@link OidcFederationDefaultJsonWebKeystoreServiceTests}.

@author Misagh Moayyed
@since 7.3.0
support/cas-server-support-oidc/src/test/java/org/apereo/cas/oidc/federation/OidcFederationDefaultJsonWebKeystoreServiceTests.java