@Test
    void verifyOperation() {
        val googleAuth = new DefaultCasGoogleAuthenticator(casProperties, tenantExtractor);
        googleAuth.setCredentialRepository(new DummyCredentialRepository());
        assertNotNull(googleAuth.getCredentialRepository());
        val key = googleAuth.createCredentials("casuser");
        assertNotNull(key);
        assertFalse(googleAuth.authorize(key.getKey(), key.getVerificationCode()));
    }
This is {@link GoogleAuthenticatorServiceTests}.

@author Misagh Moayyed
@since 7.3.0
support/cas-server-support-gauth-core/src/test/java/org/apereo/cas/gauth/GoogleAuthenticatorServiceTests.java