Jest

Mock Your Hooks to Make Testing Simpler

Mocking with Jest can have a weird learning curve. Let's see how to mock those hooks.

Jest: How to Update Snapshot Tests

Testing with Jest in TypeScript and Node.js for Beginners

How to Mock AWS S3 in a Jest (Unit) Test

Storybook Snapshot Testing

Automatic Jest Snapshot Testing with Storybook Stories

Mocking imported constants/methods in JavaScript with Jest

Testing React Router with Jest

How to write unit tests that check if you're routing requests correctly using React Router with Jest

Creating Axios mock requests in Jest

How to create your own reusable axios mock request function for Jest.

Unit Testing Node.js + Mongoose Using Jest

Jest Spies and Mocks in Explained via Examples

Make your JavaScript tests deeper, leaner, and faster with these two Jest methods

How to Unit Test Express Middleware