}

    @Test
    public void test_encode() {
        assertNull(permissionHelper.encode(null));
        assertNull(permissionHelper.encode(""));
        assertNull(permissionHelper.encode(" "));
        assertNull(permissionHelper.encode("{user}"));
        assertNull(permissionHelper.encode("{role}"));
        assertNull(permissionHelper.encode("{group}"));
        assertNull(permissionHelper.encode("(allow)"));

    public void test_userPager_initialization() {
        final UserPager pager = new UserPager();
        assertNull(pager.id);
        assertEquals(1, pager.getCurrentPageNumber());
    }

    @Test
    public void test_user_surnameDefaultsToName() {
        final User user = new User();
        user.setName("testuser");
        assertNull(user.getSurname());

        // When surname is blank, convertEmptyToNull converts it to null

        assertEquals(25, jobLogPager.getPageSize());
        assertEquals(1, jobLogPager.getCurrentPageNumber());
        assertNull(jobLogPager.id);
        assertNull(jobLogPager.jobName);
        assertNull(jobLogPager.jobStatus);
        assertNull(jobLogPager.target);
        assertNull(jobLogPager.scriptType);

        jobLogPager.setAllRecordCount(999);
        assertEquals(999, jobLogPager.getAllRecordCount());

        assertEquals(25, webAuthPager.getPageSize());
        assertEquals(1, webAuthPager.getCurrentPageNumber());
        assertNull(webAuthPager.id);
        assertNull(webAuthPager.port);
        assertNull(webAuthPager.username);
        assertNull(webAuthPager.webConfigId);
        assertNull(webAuthPager.versionNo);

        webAuthPager.setAllRecordCount(999);
        assertEquals(999, webAuthPager.getAllRecordCount());

    }

    @Test
    public void test_crawlingInfo_entity() {
        final CrawlingInfo info = new CrawlingInfo();
        assertNull(info.getId());
        assertNull(info.getSessionId());
        assertNull(info.getName());
        assertNull(info.getExpiredTime());
        assertNull(info.getCreatedTime());

        info.setId("info-id");
        info.setSessionId("session-123");
        info.setName("Test Crawl");

    @Test
    public void test_assistCurrentDBDef() {
        DBDef result = invokerAssistant.assistCurrentDBDef();
        assertNull(result);
    }

    // Test assistDataSource
    @Test
    public void test_assistDataSource() {
        DataSource result = invokerAssistant.assistDataSource();
        assertNull(result);
    }

    // Test assistDBMetaProvider
    @Test
    public void test_assistDBMetaProvider() {

        final LlmChatResponse response = new LlmChatResponse();
        assertNull(response.getContent());
        assertNull(response.getFinishReason());
        assertNull(response.getPromptTokens());
        assertNull(response.getCompletionTokens());
        assertNull(response.getTotalTokens());
        assertNull(response.getModel());
    }

    @Test
    public void test_constructorWithContent() {

        assertNull(languageHelper.getSupportedLanguage("fr"));
        assertNull(languageHelper.getSupportedLanguage("de"));
        assertNull(languageHelper.getSupportedLanguage("unknown"));
    }

    @Test
    public void test_getSupportedLanguage_blank() {
        assertNull(languageHelper.getSupportedLanguage(null));
        assertNull(languageHelper.getSupportedLanguage(""));

        assertEquals(1, boostdocpager.getCurrentPageNumber());
        assertNull(boostdocpager.id);
        assertNull(boostdocpager.urlExpr);
        assertNull(boostdocpager.boostExpr);
        assertNull(boostdocpager.sortOrder);
        assertNull(boostdocpager.createdBy);
        assertNull(boostdocpager.createdTime);
        assertNull(boostdocpager.versionNo);

        boostdocpager.setAllRecordCount(999);

        assertEquals(1, duplicatehostpager.getCurrentPageNumber());
        assertNull(duplicatehostpager.id);
        assertNull(duplicatehostpager.regularName);
        assertNull(duplicatehostpager.duplicateHostName);
        assertNull(duplicatehostpager.sortOrder);
        assertNull(duplicatehostpager.createdBy);
        assertNull(duplicatehostpager.createdTime);
        assertNull(duplicatehostpager.versionNo);