Testing Hooks Subjects.jsx

// ✅ This is covered by Jooks.
// It is a function starting by "use" and using basic hooks internally.
const useMyHook = () => {
  const [first, setFirst] = useState('alpha');
  const update = () => {
    setFirst(first + 'a');
  };
  return { first, update };
};

// 🚫 This is NOT covered by Jooks.
// This is a component that is using a basic hook, not a custom hook.
const MyComponent = () => {
  const [first, setFirst] = useState('alpha');
  return (
    <div>{first}</div>  
  );
}