LdapUser user4 = new LdapUser(testEnv, null);
        assertNull(user4.getName());
    }

    @Test
    public void test_getEnvironment() {
        // Test getEnvironment returns the correct environment
        Hashtable<String, String> env = ldapUser.getEnvironment();
        assertSame(testEnv, env);
        assertEquals("test.value", env.get("test.key"));

        // Test with empty environment

    }

    /**
     * Returns the environment for LDAP connection.
     *
     * @return The environment for LDAP connection.
     */
    public Hashtable<String, String> getEnvironment() {
        return env;
    }

    @Override
    public boolean isEditable() {
        return ComponentUtil.getFessConfig().isLdapAdminEnabled(name);
    }

        final Set<String> subRoleSet = new HashSet<>();
        final Set<String> sAMAccountGroupNameSet = new HashSet<>();
        search(bindDn, filter, new String[] { fessConfig.getLdapMemberofAttribute() }, () -> ldapUser.getEnvironment(), result -> {
            processSearchRoles(result, entryDn -> {
                final String roleName = getSearchRoleName(entryDn);
                final String roleType = updateSearchRoles(roleSet, entryDn, roleName);