1/ disable/uninstall in your PHP and verify memcache muc env check is not displayed during install and ugprade
2/ enable memcache extension in your PHP and verify the memcache env test is not visible during install and upgrade if memcache server not specified in admin setting
3/ verify the warning appears in environment check and memcache admin setting page after adding server setting in memcache muc config
0/ execute phpunit tests
1/ disable/uninstall in your PHP and verify memcache muc env check is not displayed during install and ugprade
2/ enable memcache extension in your PHP and verify the memcache env test is not visible during install and upgrade if memcache server not specified in admin setting
3/ verify the warning appears in environment check and memcache admin setting page after adding server setting in memcache muc config