public void SelectNode_EnsurePath()
{
var node = new SelectNode();
node.EnsurePath("first");
node.EnsurePath("second", "thing");
node.EnsurePath("second", "another2", "id");
node.EnsurePath("second", "another2", "config_id");
node.EnsurePath("no_paren");
node.EnsurePath("third");
node.EnsurePath("third", "stuff");
node.EnsurePath("another", "id");
var actual = node.ToString();
Assert.AreEqual("first,second(thing,another2(id,config_id)),no_paren,third(stuff),another(id)", actual);
}