What is Jest testing and how do I use it for integration tests?

What is Jest testing and how do I use it for integration tests?

Jest is a JavaScript testing framework that allows you to write tests for your code. For integration tests, you can use Jest to test how different parts of your application work together.

Can you give me an example of an integration test using Jest?

Sure! Here's a simple example: if you have a function that fetches data from an API and another that processes that data, you can write an integration test to ensure they work together correctly.

What tools do I need to set up Jest for integration testing?

You'll need Node.js installed, and then you can install Jest using npm with the command npm install --save-dev jest. You might also want to use additional libraries like supertest for testing HTTP requests.

How do I run my Jest integration tests?

You can run your Jest tests by adding a script in your package.json like this: "test": "jest". Then, just run npm test in your terminal.