How can I test asynchronous code in Java?

How can I test asynchronous code in Java?

You can use frameworks like JUnit along with CompletableFuture or libraries like Awaitility to test async code.

Can you give me an example using JUnit and CompletableFuture?

Sure! You can create a test method that uses CompletableFuture to run your async code and then assert the result.

What about using Mockito for mocking in async tests?

Mockito can be very useful! You can mock dependencies and use them in your async methods to isolate tests.

Are there any best practices for async testing in Java?

Yes, keep your tests isolated, avoid using Thread.sleep, and ensure you handle exceptions properly.