use insta::assert_snapshot;
#[test]
fn deep() {
use super::Tree;
let mut tree = Tree::create_and_init(0);
let start = tree.add_child(tree.root(), 1);
let mut deeper = start;
for i in 2..10 {
deeper = tree.add_child(deeper, i);
}
assert_snapshot!(tree.ascii(&|d| d.to_string()), @r###"
0
└─ 1
└─ 2
└─ 3
└─ 4
└─ 5
└─ 6
└─ 7
└─ 8
└─ 9
"###);
assert_snapshot!(tree.dump_used(), @"[0] 0, [1] 1, [2] 2, [3] 3, [4] 4, [5] 5, [6] 6, [7] 7, [8] 8, [9] 9");
tree.discard(start, |_| {});
assert_eq!(tree.ascii(&|d| d.to_string()), " 0\n");
assert_snapshot!(tree.dump_used(), @"[0] 0");
}