.NET unit testing packages | I am getting back into a bit more .NET after a few-years of not using it full-time and am wondering what the good unit testing packages are these days.


I'm familiar with NUnit (a few years ago) and have played briefly around with [IronRuby](https://en.wikipedia.org/wiki/IronRuby), with the goal of getting something like [RSpec](https://en.wikipedia.org/wiki/RSpec) going, but I don't know much beyond that.


I realize I could google for this and call it a day, but I believe I'm likely to get a better and more informed response from asking a question here :-)


Suggestions?