What are the best practices for setting up Jest?

What are the best practices for setting up Jest?

When setting up Jest, it's important to ensure your configuration is optimized for your project. Start by installing Jest via npm or yarn.

Should I use a specific configuration file?

Yes, using a configuration file like jest.config.js allows you to customize settings such as test environment, coverage thresholds, and module paths.

How can I organize my tests effectively?

Organizing tests by feature or module is a good practice. You can create a tests directory or place test files alongside the components they test.

What about mocking in Jest?

Mocking is crucial for isolating tests. Use Jest's built-in mocking functions to mock modules and functions, ensuring your tests are reliable.