abhibeckert, 10 months ago

Is that a real example, or a contrived one?

I don’t think it’s normal to write a test for IShape.Area() in your example. You’d only write tests for Rectangle.Area() and Triangle.Area().

Wether or not all of that is in the same file should, in my opinion, depend how many tests there are. If there are “too many” lines of code, split it into multiple files.