77 lines
2.4 KiB
JavaScript
77 lines
2.4 KiB
JavaScript
/*
|
|
* Copyright 2002-2024 the original author or authors.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* https://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
import { expect } from "chai";
|
|
import base64url from "../lib/base64url.js";
|
|
|
|
describe("base64url", () => {
|
|
before(() => {
|
|
// Emulate the atob / btoa base64 encoding/decoding from the browser
|
|
global.window = {
|
|
btoa: (str) => Buffer.from(str, "binary").toString("base64"),
|
|
atob: (b64) => Buffer.from(b64, "base64").toString("binary"),
|
|
};
|
|
});
|
|
|
|
after(() => {
|
|
// Reset window object
|
|
global.window = {};
|
|
});
|
|
|
|
it("decodes", () => {
|
|
// "Zm9vYmFy" is "foobar" in base 64, i.e. f:102 o:111 o:111 b:98 a:97 r:114
|
|
const decoded = base64url.decode("Zm9vYmFy");
|
|
|
|
expect(new Uint8Array(decoded)).to.be.deep.equal(new Uint8Array([102, 111, 111, 98, 97, 114]));
|
|
});
|
|
|
|
it("decodes special characters", () => {
|
|
// Wrap the decode function for easy testing
|
|
const decode = (str) => {
|
|
const decoded = new Uint8Array(base64url.decode(str));
|
|
return Array.from(decoded);
|
|
};
|
|
|
|
// "Pz8/" is "???" in base64, i.e. ?:63 three times
|
|
expect(decode("Pz8/")).to.be.deep.equal(decode("Pz8_"));
|
|
expect(decode("Pz8_")).to.be.deep.equal([63, 63, 63]);
|
|
// "Pj4+" is ">>>" in base64, ie >:62 three times
|
|
expect(decode("Pj4+")).to.be.deep.equal(decode("Pj4-"));
|
|
expect(decode("Pj4-")).to.be.deep.equal([62, 62, 62]);
|
|
});
|
|
|
|
it("encodes", () => {
|
|
const encoded = base64url.encode(Buffer.from("foobar"));
|
|
|
|
expect(encoded).to.be.equal("Zm9vYmFy");
|
|
});
|
|
|
|
it("encodes special +/ characters", () => {
|
|
const encode = (str) => base64url.encode(Buffer.from(str));
|
|
|
|
expect(encode("???")).to.be.equal("Pz8_");
|
|
expect(encode(">>>")).to.be.equal("Pj4-");
|
|
});
|
|
|
|
it("is stable", () => {
|
|
const base = "tyRDnKxdj7uWOT5jrchXu54lo6nf3bWOUvMQnGOXk7g";
|
|
|
|
expect(base64url.encode(base64url.decode(base))).to.be.equal(base);
|
|
});
|
|
});
|