Add MapSubject#containsAnyOf
I have a test that can create a map with one of two possible entries.
It would be nice if I could use containsAnyOf like I can with an IterableSubject.
Until such time as that method may be added, you could work around it by using containsAnyOf on the map's entrySet().
Alan's response is better than my first thought, and you should do that :)
In a slightly different situation, you might find it useful to use Fuzzy Truth (a.k.a. comparingValuesUsing): You could specify the key you expect and (essentially) a predicate that matches any of the values you expect.
But hopefully we'll add the thing you really want eventually. Thanks for the request.