> Can you certify this library with memcapable ?
As I understand memcapable corresponds to memcached protocol implementations. There is corresponding test tool in libmemcached source tree, which is used to check server, e.g. text/binary protocols, etc. Since lua-libmemcached is an interface wrapper to the libmemcached it uses libmemcached implementation to communicate to memcached server.
The lua-memcached comes with a number of test cases that cover all possible interface cases. While it is relatively new, it still remains under `dev` tag, however work is 98% complete.