@Test
    void verifyOperation() throws Throwable {
        val config = mock(ConnectionConfig.class);
        val operation = mock(SearchOperation.class);
        val fetcher = new LdaptiveResourceCRLFetcher(config, operation, "attribute");
        assertNull(fetcher.fetch(new URI("https://github.com")));
        assertNull(fetcher.fetch(new URI("https://github.com").toURL()));
        assertNull(fetcher.fetch("https://github.com"));
    }
Test cases for {@link LdaptiveResourceCRLFetcher}

@author Misagh Moayyed
@since 4.1
support/cas-server-support-x509/src/test/java/org/apereo/cas/adaptors/x509/authentication/ldap/LdaptiveResourceCRLFetcherTests.java