How about initializing `firstPerson` and `secondPerson` in `berfore()` method so you can be certain that those variables are the same for each test? It's easy to modify one of them in one test by mistake and because of that other tests will suffer. This can be really hard to debug. I can see that you're not using them in every test below so another way is to add `final` clause for each of them or just create a `prepareTwoPeople()` method and call it in tests that is using them.

I don't know, maybe I'm a little bit too cautious. What do you think?