from project import *
from s0_base import *

p = "test_operation"

if is_project_open(p):
    close_project(p)

if have_project(p):
    delete_project(p)

create_project(p)
open_project(p)

add_node(p, "n-1", JUNCTION)
add_node(p, "n-2", JUNCTION)
add_node(p, "n-3", JUNCTION)
execute_undo(p)
add_node(p, "n-3", JUNCTION)
add_node(p, "n-4", JUNCTION)
execute_undo(p)
execute_redo(p)

close_project(p)
delete_project(p)