3.x: Alternative for assertValueSet

[Steppschuh]

While upgrading a large codebase from RxJava2 to RxJava3, I stumbled upon the fact that assertValueSet has been removed from the test consumer. Unfortunately I missed the usage survey in #6153.

Is there any recommended way to assert that a given stream emits expected items in any order?

Here's an example diff for my current workaround while migrating:

PS: I was happy that the migration was very smooth overall, especially because of the detailed documentation. Highly appreciate your efforts!

[akarnokd]

Those methods were turned into internal static methods on a helper class:

https://github.com/ReactiveX/RxJava/blob/3.x/src/test/java/io/reactivex/rxjava3/testsupport/TestHelper.java#L3457-L3477

You can do that or define your own TestSubscriber subclass with extra fluent assertions.