private ListRandom GetListRandom(int countNodes)
{
var list = new ListRandom();
for (int i = 0; i < countNodes; i++)
{
list.AddWithoutRandom(i.ToString());
}
list.ForEachStoppable((ListNode node, ref bool stop) =>
{
node.Random = list.Get(_random.Next(0, list.Count - 1));
});
return(list);
}