What are some advanced techniques for asynchronous testing?

What are some advanced techniques for asynchronous testing?

Advanced asynchronous testing techniques include using mocks, stubs, and spies, as well as leveraging frameworks like Jest or Mocha.

Can you explain how to use mocks in async testing?

Sure! Mocks simulate the behavior of real objects in a controlled way, allowing you to test asynchronous code without relying on actual implementations.

What are the benefits of using stubs in my tests?

Stubs provide predefined responses to function calls, which helps isolate the code under test and makes tests more predictable.

How do I handle timeouts in async tests?

You can use functions like setTimeout or libraries like async to manage timeouts effectively, ensuring your tests run smoothly.

Are there any best practices for async testing?

Yes, always ensure your tests are deterministic, avoid using real network calls, and clean up after tests to prevent side effects.