- edit DocumentRoot in /private/etc/apache2/httpd.conf and set it to your path, both "DocumentRoot" and "Directory"
- add the following lines
Options Indexes FollowSymLinks Multiviews
(Indexes is so you can view directory)
- change User from _www to your username
This is for single machine and for test only as it will not be highly secure but it's a quick way for not having to do all the permission change on your test web directory.