I am using Mocha, Chai, Karma, Sinon, Webpack for Unit tests.
I followed this link to configure my testing environment for React-Redux Code.
How to implement
redux-mock-store is an awesome tool to test redux connected components in react
const containerElement = shallow(());
Create fake store and mount the component
You may refer to this article Testing redux store connected React Components using Jest and Enzyme | TDD | REACT | REACT NATIVE