module traffic_fsm_test;     reg clk,rst; traffic_fsm u(.clk(clk),.rst(rst),.red1(red1_test),.yellow1(yellow1_test),.green1(green1_test),                  .red2(red2_test),.yellow2(yellow2_test),.green2(green2_test));    initial       begin         rst=1;         clk=0;         #5 rst=0;         #30 rst=1;        end   always #30 clk=~clk;endmodule