Make it possible to develop tests in a teacher's solution

Describe your feature request

I’m working on a solution for a Java lab (part of Teams for Education), and, of course, I want to test it. This is in Java. But when I click on tests it just says No tests available, and there is no way to create a test there. If I open up the lab, that the students will (eventually) see, there are testing options, but how do I set up testing while I’m developing the solution?

What problem(s) would this feature solve?

Being able to write unit tests! I presume that this is possible and I’m just missing something.

Explain what you were trying to do when you came across the problem leading to this feature request

I was trying to write unit tests while working on a Teacher’s Solution.