jsdom/test/window/base64.js at 9.3.0 · dominicrico/jsdom

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"use strict";

const jsdom = require("../..").jsdom;

// Tests for window.atob and window.btoa

// Spec: https://html.spec.whatwg.org/multipage/webappapis.html#atob

const plaintext = "Hello, world!";

const base64text = "SGVsbG8sIHdvcmxkIQ==";

exports["window.btoa encodes a string to base64"] = t => {

const window = jsdom().defaultView;

t.strictEqual(window.btoa(plaintext), base64text);

t.done();

};

exports["btoa throws an InvalidCharacterError if any char's code point is above U+00FF"] = t => {

t.expect(2);

const window = jsdom().defaultView;

try {

window.btoa(plaintext + "\u03BB");

} catch (err) {

t.strictEqual(err instanceof window.DOMException, true);

t.strictEqual(err.name, "InvalidCharacterError");

}

t.done();

};

exports["window.atob decodes a base64 string"] = t => {

const window = jsdom().defaultView;

t.strictEqual(window.atob(base64text), plaintext);

t.done();

};

exports["atob throws an InvalidCharacterError if any char's code point is above U+00FF"] = t => {

t.expect(2);

const window = jsdom().defaultView;

try {

window.atob(plaintext + "\u03BB");

} catch (err) {

t.strictEqual(err instanceof window.DOMException, true);

t.strictEqual(err.name, "InvalidCharacterError");

}

t.done();

};