I think almost all modern languages end up with granting (unit) testing code free access to everything. The idea of testing only the public interface is about a

I think almost all modern languages end up with granting (unit) testing code free access to everything. The idea of testing only the public interface is about an unique snow flake only meaningful in C++ design, and was never a viable practice at all. Otherwise, I'd say at least one other language follow the similar approach...