redux-mock-store VS react-native-testing-library

To fix this, the simple way is to mock a redux store. I need to install redux-mock-store and its typing:

For a long time I relied on redux mock store to preload data into my components for rendering during tests. This approach makes it easy to take a snapshot of a component with arbitrary data and ensure that it renders correctly. Where it completely fails is testing interactions.

Redux Toolkit includes a configureStore method that allows you to preload it with state. The createStore method in redux includes this option as well. In the old days I would rely on tools like redux mock store to generate redux stores for testing, but you don't need it. You can generate a store for your tests that includes exactly the same reducers as your app, but also comes pre-loaded with whatever state you need for your tests.

The above example checks the actions executed by someThunkFunction. The mockStore function used in the example comes from the redux-mock-store library.

Testing library: @testing-library/react-native

Has anyone recently done unit tests in RN using jest and https://callstack.github.io/react-native-testing-library/. I’m struggling to mock all the libraries. The example given in testing-library seems to doesn’t need to mock all the libraries but in my case it throws error. I’ve also added ‘transformIgnorePatterns’ in package.json. Any help or repo would be helpful.

This article offers an overview of React Native testing, but there’s so much more to learn! I encourage you to explore other testing techniques and tools, like Snapshot Testing, Detox, and React Native Testing Library. Choose the ones that work best for your project, and keep learning!

Introducing a new tool means introducing a new workflow. This can lead to lower adoption, as developers need to to get familiar with it in the first place. To prevent that from happening, we've based Reassure on https://callstack.github.io/react-native-testing-library/ API as something React Native developers should be familiar with.

Tests with Jest and React Native Testing Library.

The standard is React Native Testing Library for unit and integration tests, and Detox for E2E tests.

Using our experience from developing the React Native Testing Library, we created Reassure—a performance regression testing companion for React and React Native components. We developed it in partnership with Entain – one of the world’s largest sports betting and gaming groups.

I'm building a React Native application with TypeScript. I'm using React Native Testing Library for my component tests.

I faced the following issue https://github.com/callstack/react-native-testing-library/issues/955. Production build is failed and error points to the library from devDependencies.

In this tutorial, we'll be using react native testing library and the main philosophy of this library is focusing on testing how your application works, instead of its implementation.