[] anonymous page creation and editing, verify change in content (verifying access to old revisions requires variable support) via [[API:Edit]]
[] re-parse of dependent pages (red links turning blue, missing templates getting used after being created) via [[API:Edit]] and then fetching the rendered page from the article path (index.php?title=xyz)
[] page history with edit summary, size diff (testing minor edits and user names requires variables for login) see [[API:Revisions]]
[] recent changes with edit summary, size diff, etc [[API:RecentChanges]]
[] renaming/moving a page (basic) via [[API:Move]]
[] diffs (use relative revision ids) via [[API:Compare]]
[] changing preferences
[] undo
[] diffs with fixed revision IDs (test special case for last and first revision)
[] auto-patrolling
[] listing users
[] page protection (effectiveness, levels)
[] newtalk notifications
[] site stats (may need support for arithmetic functions)