What are the best practices for using Jest in my projects?

What are the best practices for using Jest in my projects?

Some best practices for using Jest include organizing your tests, using descriptive test names, and leveraging snapshot testing.

How should I organize my test files?

It's recommended to keep your test files close to the source files they test, often in a __tests__ folder or alongside the components.

What are snapshot tests and when should I use them?

Snapshot tests capture the rendered output of a component and compare it to a saved version. Use them for components that don't change often.

Can you give me an example of a good test case?

Sure! A good test case checks if a button renders correctly and responds to clicks, ensuring the expected behavior.

How can I improve the performance of my Jest tests?

You can improve performance by running tests in parallel, using --runInBand for resource-heavy tests, and optimizing your test setup.