new_client 1 x11
create 1/1
show 1/1

create 1/2 csd
set_parent 1/2 1
can_take_focus 1/2 false
accept_focus 1/2 false
show 1/2

create 1/3 csd
set_parent 1/3 2
show 1/3

wait
assert_stacking 1/1 1/2 1/3

destroy 1/3

wait
assert_stacking 1/1 1/2