JUnit-testing a Spring @Async void service method

Question

I have a Spring service:

@Service
@Transactional
public class SomeService {

    @Async
    public void asyncMethod(Foo foo) {
        // processing takes si         


        

Answer 1

In case your method returns CompletableFuture use join method - documentation CompletableFuture::join.

This method waits for the async method to finish and returns the result. Any encountered exception is rethrown in the main thread.