text: import React from "react";
  import ReactDOM from "react-dom";
  import App from "./App";
  
  it("renders without crashing", () => {
      const div = document.createElement("div");
      ReactDOM.render( < App / > , div);
      ReactDOM.unmountComponentAtNode(div);
  });
  
  it("displays start text", () => {
      const div = document.createElement("div");
      ReactDOM.render( < App / > , div);
  
      ReactDOM.unmountComponentAtNode(div);
  });