From Wikipedia!

Editors are users who have the extra ability to check pending changes to determine if they should be accepted, reverted or fixed through editing.

Users in the editor group can:

  • Edit semi-protected pages (autoconfirmed)
  • Have one's own edits automatically marked as "checked" (autoreview)
  • Mark revisions as being "checked" (review)
  • View recent changes patrol marks (patrolmarks)
  • View the list of pages with pending changes

A list of all patrollers on Test Wikipedia is unavailable, see Special:ListUsers.