element-web/test/unit-tests/favicon-test.ts

54 lines
1.6 KiB
TypeScript

/*
Copyright 2024 New Vector Ltd.
Copyright 2022 The Matrix.org Foundation C.I.C.
SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
Please see LICENSE files in the repository root for full details.
*/
import "jest-canvas-mock";
import Favicon from "../../src/favicon";
jest.useFakeTimers();
describe("Favicon", () => {
beforeEach(() => {
const head = document.createElement("head");
window.document.documentElement.prepend(head);
});
it("should create a link element if one doesn't yet exist", () => {
const favicon = new Favicon();
expect(favicon).toBeTruthy();
const link = window.document.querySelector("link")!;
expect(link.rel).toContain("icon");
});
it("should draw a badge if called with a non-zero value", () => {
const favicon = new Favicon();
favicon.badge(123);
jest.runAllTimers();
expect(favicon["context"].__getDrawCalls()).toMatchSnapshot();
});
it("should clear a badge if called with a zero value", () => {
const favicon = new Favicon();
favicon.badge(123);
jest.runAllTimers();
favicon.badge(0);
expect(favicon["context"].__getDrawCalls()).toMatchSnapshot();
});
it("should recreate link element for firefox and opera", () => {
window["InstallTrigger"] = {};
window["opera"] = {};
const favicon = new Favicon();
const originalLink = window.document.querySelector("link");
favicon.badge(123);
jest.runAllTimers();
const newLink = window.document.querySelector("link");
expect(originalLink).not.toStrictEqual(newLink);
});
});