Recreating Boeing test flights.

So I'm not sure whether Boeing takes every plane that rolls off the line, on a test flight or not, but I would like to create a flight like this in MSFS with the 737 or 777. I would like to try and make the test feel realistic, and I'm wondering what a real test flight might consist of or if there is a specific route they fly.

So is there a standard route they fly for test flights, or any specific things I should be doing during the test that you know of?

Thanks