assertEquals("zh_TW", systemHelper.normalizeLang(value));

        value = "zh_TW";
        assertEquals("zh_TW", systemHelper.normalizeLang(value));
    }

    public void test_createSearchRole() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public boolean isLdapIgnoreNetbiosName() {