import { describe, expect, test } from "vitest";
import { stringToBase64URL, stringFromBase64URL, stringFromUTF8, codepointToUTF8, } from "./base64url";
const EXAMPLES = [
    "a",
    "ab",
    "abc",
    "abcd",
    "hello world",
    "нешто на кирилица",
    "something with emojis 🤙🏾 ",
    "Supabaseは、オープンソースの Firebase 代替製品です。エンタープライズグレードのオープンソースツールを使って、Firebase の機能を構築しています。",
];
describe("stringToBase64URL", () => {
    EXAMPLES.forEach((example) => {
        test(`encode "${example}"`, () => {
            expect(stringToBase64URL(example)).toEqual(Buffer.from(example).toString("base64url"));
        });
    });
});
describe("stringFromBase64URL", () => {
    EXAMPLES.forEach((example) => {
        test(`decode "${example}"`, () => {
            expect(stringFromBase64URL("\r\t\n " + Buffer.from(example).toString("base64url"))).toEqual(example);
        });
    });
    test("decode with invalid Base64-URL character", () => {
        expect(() => {
            stringFromBase64URL("*");
        }).toThrow(new Error(`Invalid Base64-URL character "*" at position 0`));
    });
});
const BAD_UTF8 = [
    [0xf8], // 11111000
    [0xff], // 11111111
    [0x80], // 10000000
    [0xf8, 1], // 11110000 00000001
    [0xe0, 1], // 11100000 00000001
    [0xc0, 1], // 11100000 00000001
];
describe("stringFromUTF8", () => {
    BAD_UTF8.forEach((example) => {
        test(`should recognize bad UTF-8 sequence ${example.map((x) => x.toString(16)).join(" ")}`, () => {
            expect(() => {
                const state = { utf8seq: 0, codepoint: 0 };
                example.forEach((byte) => {
                    stringFromUTF8(byte, state, () => { });
                });
            }).toThrow(new Error("Invalid UTF-8 sequence"));
        });
    });
});
describe("codepointToUTF8", () => {
    test("invalid codepoints above 0x10ffff", () => {
        const invalidCodepoint = 0x10ffff + 1;
        expect(() => {
            codepointToUTF8(invalidCodepoint, () => {
                throw new Error("Should not becalled");
            });
        }).toThrow(new Error(`Unrecognized Unicode codepoint: ${invalidCodepoint.toString(16)}`));
    });
});
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