Give it time, Go is still pretty new and requires reinventing all those wheels and flexibility-allowances. It's already visible in some areas though - e.g. loo

Give it time, Go is still pretty new and requires reinventing all those wheels and flexibility-allowances. It's already visible in some areas though - e.g. look at the hoops you have to code through to allow decent unit testing of controller-style code. Anything of interest has to be exported and injected, or you simply can't do it. Even Java's significantly better here with its runtime manipulation.