How do I set up Jest for testing Redux applications?

How do I set up Jest for testing Redux applications?

To set up Jest for Redux, first install Jest and any necessary testing libraries like React Testing Library.

What configurations do I need in my Jest setup?

You need to configure Jest in your package.json or create a jest.config.js file to specify test environment and coverage.

Can you show me an example test for a Redux action?

Sure! Here's a simple test for a Redux action:

import { myAction } from './actions';

test('should create an action to add a todo', () => {
  const expectedAction = { type: 'ADD_TODO', payload: 'Learn Jest' };
  expect(myAction('Learn Jest')).toEqual(expectedAction);
});