redux-subscriber | Subscribe to changes in any part of redux state | State Container library

1. Install all these dependencies in dev. In my case I am using typescript, if you are using javascript, skip types. Run npm i -D and all these dependencies.

   @types/enzyme @types/enzyme-adapter-react-16 enzyme enzyme-adapter-react-16 jest-environment-enzyme jest-enzyme @testing-library/jest-dom @testing-library/react @testing-library/user-event @types/jest ts-jest

2. In root of your project, create a file named jest.config.js and inside put this code :

module.exports = { preset: 'ts-jest', testEnvironment: 'node', modulePathIgnorePatterns: ["/dist/"], };

1. In the same root of the project, create a file called jest.config.unit.js and put this code there: