How can I mock APIs in Vue.js testing with Vue Testing Library?

How can I mock APIs in Vue.js testing with Vue Testing Library?

You can use libraries like msw (Mock Service Worker) to mock APIs in your Vue.js tests. It intercepts network requests and allows you to define responses.

Can you show me a simple example of how to set that up?

Sure! First, install msw using npm. Then, create a mock service worker and define your API handlers. In your test file, you can start the worker before your tests and stop it afterward.

What if I want to test error responses?

You can define error responses in your handlers. For example, you can return a 404 status code to simulate a not found error.

Is there a way to test the loading state as well?

Yes, you can simulate loading states by using a delay in your response handlers. This way, you can test how your component behaves while waiting for the API response.