import { render } from "@testing-library/react"; import { WrapWithProvider } from "test/jest/test-utils"; import { _TopSites as TopSites } from "content-src/components/TopSites/TopSites"; const DEFAULT_PROPS = { dispatch: jest.fn(), App: { isForStartupCache: {} }, TopSites: { initialized: true, rows: [], editForm: null, showSearchShortcutsForm: false, }, Prefs: { values: {} }, TopSitesRows: 1, TopSitesMaxSitesPerRow: 8, }; describe("", () => { beforeEach(() => { Object.defineProperty(globalThis, "matchMedia", { writable: true, value: () => ({ matches: false, addListener: jest.fn(), removeListener: jest.fn(), }), }); Object.defineProperty(window.performance, "mark", { configurable: true, value: jest.fn(), }); }); it("should render", () => { const { container } = render( ); expect(container.querySelector(".top-sites")).toBeInTheDocument(); }); });