Unit Testing with functions that return random results

Question

I don\'t think that this is specific to a language or framework, but I am using xUnit.net and C#.

I have a function that returns a random date in a certain range. I

Answer 1

Normaly I use exactly your suggested approach: Control the Random generator. Initialize it for test with a default seed (or replace him by a proxy returning numbers which fit my testcases), so I have deterministic/testable behaviour.