final User user = new User();
        user.setName("testuser");
        assertNull(user.getSurname());

        // When surname is blank, convertEmptyToNull converts it to null
        user.setSurname("");
        assertNull(user.getSurname());

        user.setSurname(user.getName());
        assertEquals("testuser", user.getSurname());
    }

    @Test

    @Test
    public void test_constructor_withValidUsername() {
        // Test with a normal username
        String username = "testuser";
        FessUserNotFoundException exception = new FessUserNotFoundException(username);

        assertNotNull(exception);
        assertEquals("User is not found: testuser", exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test

    }

    public void test_clear() {
        WebAuthPager webAuthPager = new WebAuthPager();
        webAuthPager.id = "testId";
        webAuthPager.port = "8080";
        webAuthPager.username = "testUser";
        webAuthPager.webConfigId = "webConfig1";
        webAuthPager.versionNo = "1";
        webAuthPager.setAllRecordCount(100);
        webAuthPager.setAllPageCount(10);
        webAuthPager.setExistPrePage(true);

        chain.changePasswordResult = true;

        boolean result = chain.changePassword("testuser", "newpassword123");

        assertTrue(result);
        assertEquals(1, chain.changePasswordCalls.size());
        assertEquals("testuser", chain.changePasswordCalls.get(0).getKey());
        assertEquals("newpassword123", chain.changePasswordCalls.get(0).getValue());
    }

        assertEquals(CrudMode.CREATE, form.crudMode.intValue());
    }

    @Test
    public void test_createForm_setName() {
        final CreateForm form = new CreateForm();
        form.name = "testuser";
        assertEquals("testuser", form.name);
    }

    @Test
    public void test_createForm_setPassword() {
        final CreateForm form = new CreateForm();
        form.password = "testpassword";

    }

    public void test_clear() {
        FileAuthPager fileAuthPager = new FileAuthPager();
        fileAuthPager.id = "testId";
        fileAuthPager.port = "445";
        fileAuthPager.username = "testUser";
        fileAuthPager.fileConfigId = "fileConfig1";
        fileAuthPager.versionNo = "1";
        fileAuthPager.setAllRecordCount(100);
        fileAuthPager.setAllPageCount(10);

            @Override
            public String getLdapAdminUserFilter() {
                return "(uid=%s)";
            }
        };

        // Normal name
        assertEquals("(uid=testuser)", fessConfig.getLdapAdminUserFilter("testuser"));

        // Asterisk injection attempt
        assertEquals("(uid=test\\2a)", fessConfig.getLdapAdminUserFilter("test*"));

        // LDAP injection attempt

        assertNull(sslSocketFactory);
    }

    @Test
    public void test_request_withBasicAuth() {
        setupMockConfig("localhost:9200", "testuser", "testpass");

        curlHelper.init();

        CurlRequest request = new CurlRequest(Curl.Method.GET, "http://localhost:9200/test");
        CurlRequest processedRequest = callProtectedRequest(curlHelper, request);

        TestLoginCredential expectedCredential = new TestLoginCredential("testuser", "testpass");
        authenticator.setLoginCredential(expectedCredential);

        // Execute
        LoginCredential result = authenticator.getLoginCredential();

        // Verify
        assertNotNull(result);
        assertEquals(expectedCredential, result);
        assertEquals("testuser", ((TestLoginCredential) result).getUsername());

    }

    @Test
    public void test_getLoginCredential_withValidAuthenticator() {
        currentSsoType = "test";
        final LoginCredential expectedCredential = new TestLoginCredential("testuser");
        testAuthenticator.setLoginCredential(expectedCredential);

        ssoManager = new SsoManager() {
            @Override
            protected String getSsoType() {
                return currentSsoType;