public void test_getAvailableSmbSidType() throws Exception {
        FessProp.propMap.clear();
        FessConfig fessConfig = new FessConfig.SimpleImpl() {
            @Override
            public String getSmbAvailableSidTypes() {
                return "1,2,5:2";
            }
        };

        assertNull(fessConfig.getAvailableSmbSidType(0));
        assertEquals(1, fessConfig.getAvailableSmbSidType(1));