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red_black_node_test.ts
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red_black_node_test.ts
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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { assertStrictEquals } from "../testing/asserts.ts";
import { RedBlackNode } from "./red_black_node.ts";
Deno.test("[collections/RedBlackNode] constructor and from", () => {
const parent: RedBlackNode<number> = new RedBlackNode(null, 5);
const child: RedBlackNode<number> = new RedBlackNode(parent, 7);
parent.left = child;
assertStrictEquals(parent.red, true);
parent.red = false;
const parentClone: RedBlackNode<number> = RedBlackNode.from(parent);
const childClone: RedBlackNode<number> = RedBlackNode.from(child);
assertStrictEquals(parent.parent, null);
assertStrictEquals(parent.left, child);
assertStrictEquals(parent.right, null);
assertStrictEquals(parent.value, 5);
assertStrictEquals(parent.red, false);
assertStrictEquals(child.parent, parent);
assertStrictEquals(child.left, null);
assertStrictEquals(child.right, null);
assertStrictEquals(child.value, 7);
assertStrictEquals(child.red, true);
assertStrictEquals(parentClone.parent, null);
assertStrictEquals(parentClone.left, child);
assertStrictEquals(parentClone.right, null);
assertStrictEquals(parentClone.value, 5);
assertStrictEquals(parentClone.red, false);
assertStrictEquals(childClone.parent, parent);
assertStrictEquals(childClone.left, null);
assertStrictEquals(childClone.right, null);
assertStrictEquals(childClone.value, 7);
assertStrictEquals(childClone.red, true);
});