Test 1 Log in as an administrator. Visit the page yoursite/cache/admin.php. Scroll down to 'Summary of cache lock instances' and add a new lock instance with the name 'lockname'. Once added scroll down to the same section and click on the 'Delete' link. In the URL change 'lock=lockname' to 'lock=invalidlock' and click enter to visit the altered URL. Check that a message notifying you that you entered an invalid lock appears rather than '[ [invalidlock] ]'. Test 2 Log in as an administrator. Visit the page yoursite/cache/admin.php. Click on the link 'Add instance', enter 'storename' as the Store name then click 'Save changes'. Under 'Configured store instances' click on 'Delete store' next to the newly created store. In the URL change 'store=storename' to 'store=invalidstore' and click enter to visit the altered URL. Check that a message notifying you that you entered an invalid store appears rather than '[ [invalidstore] ]'.