Home page component.

home-page-component.js

import React from 'react';

const HomePage = ({ count, onIncrementClick = () => {} }) => (
  <main>
    <p className="count" data-testid="count">
      {count}
    </p>
    <button className="increment-button" onClick={onIncrementClick}>
      Increment
    </button>
  </main>
);

export default HomePage;