final String url = authenticator.getOicTokenServerUrl();
        assertEquals("https://accounts.google.com/o/oauth2/token", url);
    }

    @Test
    public void test_getOicClientId_default() {
        final String clientId = authenticator.getOicClientId();
        assertEquals("", clientId);
    }

    @Test
    public void test_getOicClientSecret_default() {