I have a few methods that are impacted by concurrency. Specifically "Rush" (a.k.a Race) conditions. Should I unit test them or integrate/black-box test them?
I think that setting up a unit test might be a rather difficult task, but also is integration test...
i've found this article and its quite instructive about my question: https://testing.googleblog.com/2014/02/minimizing-unreproducible-bugs.html