What are the best practices for mocking in Jest?

What are the best practices for mocking in Jest?

When mocking in Jest, it's important to keep your tests isolated, use clear naming conventions, and avoid over-mocking.

Can you explain why over-mocking is a problem?

Over-mocking can lead to tests that are too rigid and don't accurately reflect real-world scenarios, making them less reliable.

What tools can I use alongside Jest for better mocking?

You can use libraries like sinon for spies and stubs, or mock-fs for mocking file system operations.

How do I mock a module in Jest?

You can mock a module using jest.mock('moduleName') at the top of your test file to replace its implementation.