/** * @jest-environment jsdom */ import { Application } from "stimulus"; import flash_controller from "../../../app/webpacker/controllers/flash_controller"; describe("FlashController", () => { beforeAll(() => { const application = Application.start(); application.register("flash", flash_controller); }); beforeEach(() => { document.body.innerHTML = `
`; }); describe("autoClose", () => { jest.useFakeTimers(); it("is cleared after about 5 seconds", () => { let element = document.getElementById("element"); expect(element).not.toBe(null); jest.advanceTimersByTime(5500); element = document.getElementById("element"); expect(element).toBe(null); }); }); });