Unit Testing: Spying on Unity's Own Static Functions

I've been getting into unit testing in a big way through my day job, and I'm getting the hang of applying it to Unity. One thing I can't find anything about is latching on to Unity's own static functions. The function I'm looking at currently is

Random.Range

I would like to do two things with this function in my test.

• I want to tell it to spit out a specific series of values for each time it is called (e.g. I call it five times, and I want the output to consistently be 4, 5, 1, 3, 2).
• I want to know that Random.Range was called five times, and bonus points if I can confirm that it was called with a particular set of arguments.

I can fake the first requirement by specifying a seed before calling, but I'd really like to know if there is a better way.

I'm using NUnit and NSubstitute.

 

Using seed for that purpose sounds like a proper solution to me.

BTW, Unity ships with a test framework as well:

• https://docs.unity3d.com/Manual/testing-editortestsrunner.html
• https://docs.unity3d.com/Manual/PlaymodeTestFramework.html

 

Thanks Peter77, I've been using Unity's built-in test functionality.
I was hoping there would be a better way to handle Random functionality. The example here describes almost what I want to do (on the same function as it happens), but solves this by abstracting the functionality of Random into its own service - something I want to avoid doing because it seems excessive, given it won't provide any more functionality, and would require discipline in using the service rather than just typing in Random.Range.