I think a good insight of rust and other static languages is it moves a lot of testing into the language itself. I once saw an extension of the testing pyramid

I think a good insight of rust and other static languages is it moves a lot of testing into the language itself. I once saw an extension of the testing pyramid by adding 'static analysis' and I think that's a good way to think about it. With more static analysis baked into the language itself although, comes the trade off of more restrictions and longer compile times.