When should I use mocking or stubbing in testing?

When should I use mocking or stubbing in testing?

Mocking and stubbing are used in testing to isolate components. Use mocking when you need to verify interactions, and stubbing when you want to provide controlled responses.

Can you give me an example of when to use each?

Sure! Use a stub when you want to simulate a database call that returns a fixed response. Use a mock to check if a method was called with specific parameters.

What are the benefits of using them?

They help in isolating tests, making them faster and more reliable by avoiding dependencies on external systems.

Are there any downsides to using mocks or stubs?

Yes, overusing them can lead to tests that are too rigid and may not reflect real-world scenarios.