How to combine verifyNoInteractions with timeout

[Nico Van Belle]

I have a piece of java code that runs in a CompletableFuture#runAsync block and I want to verify that in this block, a specific service is never called.

Normally to verify that it is actually called, I can use the timeout VerificationMode to assert when the runAsync is likely completed

verify(myService, timeout(500)).methodX(param);

But in my case I want to check if the service had no interactions. Normally this is done with verifyNoInteractions(myService); but this fires immediately and has a high chance for false positives.

The workaround is that, for every method in the service, I type use the times(0) VerificationMode e.g.:

verify(myService, timeout(500).times(0)).methodX(param); 

verify(myService, timeout(500).times(0)).methodY(param); 

verify(myService, timeout(500).times(0)).methodZ(param);

But this is an awful idea for all obvious reasons.

I know another possibility would be adding Thread.sleep(500); but I want to use the Mockito API if possible. 

I just have not seen it done elsewhere.

Thank you for your support!