}

    @Test
    public void test_changePassword_withNullUsername() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public boolean isLdapAdminEnabled(String username) {
                return true;
            }
        });
        LdapManager ldapManager = new LdapManager();
        ldapManager.init();

        // Null username should return false

        super.setupHtmlData(runtime);
        runtime.registerData("helpLink", systemHelper.getHelpLink(fessConfig.getOnlineHelpNameUser()));
        runtime.registerData("ldapAdminEnabled", fessConfig.isLdapAdminEnabled());
    }

    @Override
    protected String getActionRole() {
        return ROLE;
    }

    // ===================================================================================