I feel like you are still making the case for it. “Should I promote the logic of the dependency to the calling module?” No, I shouldn’t. That’s why I made th

I feel like you are still making the case for it. “Should I promote the logic of the dependency to the calling module?” No, I shouldn’t. That’s why I made them a dependency. They could be dependent to many modules, or there could be many implementations based on ioc implementations or a some random factory or strategy pattern. Or maybe I do not control the dependency as it is external to our platform. I can understand all too well the engineering bias to do less work. “But now all my tests are broken” may be the correct result. With that said without concrete examples too argue about it’s hard to say if we are even disagreeing. The articles examples were wanting and to what level you break up your code is a hard fought learning exercise. Some don’t care, some say no more than fits on a screen, and on the other end some people use an NPM package to find out if a number is even.