import React from "react"; import { render } from "@testing-library/react"; import { UnsupportedRenderer } from "./UnsupportedRenderer"; describe("component UnsupportedRenderer", () => { it("must display mime-type not supported", () => { const { getByText } = render( , ); expect(getByText("Rendering of this type of attachment is not supported.")).toBeDefined(); expect(getByText("Please check your mime-type: application/epub+zip")).toBeDefined(); }); });