$ mkdir dir1 dir2
$ for i in {1..3}; do touch "dir1/file$i"; done
$ for i in {4..6}; do touch "dir2/file$i"; done
$ sudo chmod 700 *
$ sudo chmod 600 */*
$ setfacl -m user:test1:rwx *
$ setfacl -m user:test2:r-x dir1
$ setfacl -m user:test2:r-- dir1/*
$ setfacl -m user:test3:r-x dir1
$ setfacl -m user:test3:r-- dir1 dir1/*
$ setfacl -m user:test3:rw- dir1/file1 
$ setfacl -m user:test3:r-x dir1/file2
$ setfacl -m user:test4:-wx dir2
$ setfacl -m user:test5:--x *
$ setfacl -m user:test5:rwx */*