test1-tests.js

// App.test.js
import React from "react";
import Enzyme, { mount } from "enzyme";
import Adapter from "enzyme-adapter-react-16";

import data from "./data.json";
import App from "./App";

Enzyme.configure({ adapter: new Adapter() });

describe("App", () => {
  const wrapper = mount(<App />);

  test("Renders all the Questions provided in the data", () => {
    // - when
    const questionComp = wrapper.find("Question");
    const totalQuestions = data.results.length;
    // - then
    expect(questionComp).toHaveLength(totalQuestions);
  });

});