FessUserBean user = FessUserBean.empty();
        String logoutUrl = ssoManager.logout(user);
        assertEquals(expectedLogoutUrl, logoutUrl);
    }

    @Test
    public void test_fullScenario_ssoDisabled() {
        currentSsoType = Constants.NONE;

        // Verify SSO is not available
        assertFalse(ssoManager.available());

        // Verify all operations return null