Opt-in for parallel-execution on a class level, instead of current assembly level

[thomasstormark3shape]

Both Xunit and Nunit has the option to opt-in for parallel test execution on a class-level or method level.

With MSTest its only possible to set [assembly: Parallelize(…)], and then opting out for each class or method by [DoNotParallelize].

When you have an old large test project with houndreds of test classes, and you find out that a lot does NOT parallelize - it would be good to gradually opt-in during migration period, and finally go for assembly level default parallelize.

Any thoughts on this feature?

[Youssef1313]

Thanks for opening this. I'm going to convert this to an issue to track this feature request.

[nohwnd]

moved to issue #5555