I don’t know what the test protocol is, but the Canmore Nordic Centre recently started doing tests for the public: http://www.csicalgary.ca/sport-performance-testing. (Previously, they only tested National Team members.)
I recently had a test done at TCR Sports in Calgary that measured AeT, AnT, and max. Cory (the owner) has been testing for a long time and is very knowledgeable.
And now that I know you’re local to my home town (Canmore), I’m even more curious: Who is @xcskier? 🙂