Test 5 - OG page, test user does not belong to the OG but ACL set
Same as You do not have access to view this node but this page will belong to an OG. This is to test how ACL and OG interact. Ideally, ACLs should take over the OG setting.
ATTENTION: Since OG and ACL are both complex modules superseding the standard Drupal's normal access privileges, setting both OG and ACL may have some unpredictable effects. For example, this page is seen by Anonymous (as the access is granted via the OG access control) and the lack of ACL for Anonymous is ignored. A standard page with ACL alone (like in You do not have access to view this node) would however be invisible to Anonymous users as he ACL module would be "alone" to take over the standard access permissions.