I think they're point is that parameter passing is a performance hit they wanted to avoid. But it didn't make sense to me either. I don't know anything about

I think they're point is that parameter passing is a performance hit they wanted to avoid. But it didn't make sense to me either. I don't know anything about C# but I assume there's some way to use compile time flags to assign static values. Seems like they should be able to mock that way.