import { render } from "@testing-library/react"; import { ComponentPerfTimer } from "content-src/components/ComponentPerfTimer/ComponentPerfTimer"; const perfSvc = { mark: jest.fn(), getMostRecentAbsMarkStartByName: jest.fn() }; describe("", () => { it("should render its children", () => { const { getByText } = render( child content ); expect(getByText("child content")).toBeInTheDocument(); }); });