// Copyright (C) 2016 Dmitry Chestnykh
// MIT License. See LICENSE file for details.

import { describe, expect, it } from 'vitest';
import { secretBox, openSecretBox } from "./secretbox.js";
import { encode, decode } from "@stablelib/hex";

describe("secretBox", () => {
    const key = new Uint8Array(32);
    for (let i = 0; i < key.length; i++) {
        key[i] = 1;
    }
    const nonce = new Uint8Array(24);
    for (let i = 0; i < nonce.length; i++) {
        nonce[i] = 2;
    }
    const data = new Uint8Array(64);
    for (let i = 0; i < data.length; i++) {
        data[i] = 3;
    }
    const good = "8442bc313f4626f1359e3b50122b6ce6fe66ddfe7d39d14e637eb4fd5b45beadab55198" +
        "df6ab5368439792a23c87db70acb6156dc5ef957ac04f6276cf6093b84be77ff0849cc" +
        "33e34b7254d5a8f65ad";

    it("should generate correct secretbox", () => {
        expect(encode(secretBox(key, nonce, data), true)).toBe(good);
    });

    it("should open secretbox", () => {
        const result = openSecretBox(key, nonce, decode(good));
        expect(result).not.toBeNull();
        expect(result).toEqual(data);
    });

    it("should not open invalid secretbox", () => {
        const bad = decode(good);
        bad[50] = 0;
        expect(openSecretBox(key, nonce, bad)).toBeNull();
    });
});