[UnityTest] for pre-defined assemblies?

Unity Engine
1

I would like to use some of the new UnityTest tools, but the the issue is I am an older codebase that is very diffucult to move into assembly definition files, and out of the pre-defined assemblies.

Is there anyway at all to do PlayMode integration tests on the pre-defined assembles?

2

I don’t think you can. I tried playing with it just now.
In 2018 you were able to, but I can’t get it working in 2019.

Can you not create a .asmdef file in your Assets folder?
That should be the simplest way to add the ref to your test assembly.