86 lines
2.6 KiB
TypeScript
86 lines
2.6 KiB
TypeScript
// Copyright (C) 2016 Dmitry Chestnykh
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// MIT License. See LICENSE file for details.
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import { encode, decode, encodeURLSafe, decodeURLSafe } from "./base64";
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const testVectors: [number[], string][] = [
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// https://tools.ietf.org/html/rfc4648
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[[], ""],
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[[102], "Zg=="],
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[[102, 111], "Zm8="],
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[[102, 111, 111], "Zm9v"],
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[[102, 111, 111, 98], "Zm9vYg=="],
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[[102, 111, 111, 98, 97], "Zm9vYmE="],
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[[102, 111, 111, 98, 97, 114], "Zm9vYmFy"],
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// "hello world"
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[[104, 101, 108, 108, 111, 32, 119, 111, 114, 108, 100], "aGVsbG8gd29ybGQ="],
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// zeros
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[[0], "AA=="],
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[[0, 0], "AAA="],
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[[0, 0, 0], "AAAA"],
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[[0, 0, 0, 0], "AAAAAA=="],
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[[0, 0, 0, 0, 0], "AAAAAAA="],
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[[0, 0, 0, 0, 0, 0], "AAAAAAAA"],
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// random
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[
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[111, 16, 164, 40, 38, 216, 61, 120, 247, 118, 115, 82, 77, 65, 170, 155],
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"bxCkKCbYPXj3dnNSTUGqmw=="
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],
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[
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[216, 8, 213, 125, 61, 133, 254, 192, 132, 229, 47, 151, 14, 63, 142, 230, 59, 143, 232, 228],
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"2AjVfT2F/sCE5S+XDj+O5juP6OQ="
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]
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];
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const badVectors = [
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"=",
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"==",
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"Zg===",
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"AAA",
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"=Zm8",
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"что"
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];
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describe("Base64", () => {
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it("should correctly encode test vectors", () => {
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testVectors.forEach((v) => {
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const input = new Uint8Array(v[0] as Array<number>);
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expect(encode(input)).toBe(v[1]);
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});
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});
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it("should correctly decode test vectors", () => {
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testVectors.forEach((v) => {
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const output = new Uint8Array(v[0] as Array<number>);
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expect(decode(v[1] as string).toString()).toBe(output.toString());
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});
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});
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it("should throw when decoding incorrect strings", () => {
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badVectors.forEach((v) => {
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expect(() => decode(v)).toThrow();
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});
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});
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});
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describe("Base64 URL-safe", () => {
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// Converts strings from standard to URL-safe encoding.
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const urlSafe = (s: string) => s.replace(/\+/g, "-").replace(/\//g, "_");
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it("should correctly encode test vectors", () => {
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testVectors.forEach((v) => {
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const input = new Uint8Array(v[0] as Array<number>);
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expect(encodeURLSafe(input)).toBe(urlSafe(v[1] as string));
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});
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});
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it("should correctly decode test vectors", () => {
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testVectors.forEach((v) => {
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const output = new Uint8Array(v[0] as Array<number>);
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expect(decodeURLSafe(urlSafe(v[1] as string)).toString()).toBe(output.toString());
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});
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});
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it("should throw when decoding incorrect strings", () => {
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badVectors.forEach((v) => {
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expect(() => decodeURLSafe(urlSafe(v))).toThrow();
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});
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});
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});
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