odin-default-js-exercises/11_getTheTitles/solution/getTheTitles-solution.spec.js

const getTheTitles = require('./getTheTitles-solution');

describe('getTheTitles', () => {
  const books = [
    {
      title: 'Book',
      author: 'Name',
    },
    {
      title: 'Book2',
      author: 'Name2',
    },
  ];

  test('gets titles', () => {
    expect(getTheTitles(books)).toEqual(['Book', 'Book2']);
  });
});