new_client w wayland new_client x x11 create w/1 show w/1 create w/2 show w/2 wait create x/1 show x/1 create x/2 show x/2 wait assert_stacking w/1 w/2 x/1 x/2 local_activate w/1 assert_stacking w/2 x/1 x/2 w/1 local_activate x/1 assert_stacking w/2 x/2 w/1 x/1 lower x/1 wait assert_stacking x/1 w/2 x/2 w/1