tests/rpc/unix.ys - third_party/yosys - Git at Google

 !python3 frontend.py unix-socket frontend.sock & sleep 0.1
 connect_rpc -path frontend.sock
 read_verilog design.v
 hierarchy -top top
 flatten
 select -assert-count 1 t:$neg
	!python3 frontend.py unix-socket frontend.sock & sleep 0.1
	connect_rpc -path frontend.sock
	read_verilog design.v
	hierarchy -top top
	flatten
	select -assert-count 1 t:$neg