I am a beginner in iOS development. Currently, I am on my week 3rd of training in the iOS development and I am glad to admit that it has been a smooth ride to understand iOS concept. I know a bit about Massive View Controllers and how they are much of a headache for this community. So, one fine day I was surfing the web and reading blogs to understand app architectural patterns in iOS. So I just stumbled on this (https://simform.com/mvc-mvp-mvvm-io...). It recommends using MVVM when your team relies on test driven development.

Just wanted to know if anyone can explain to me how MVVM can be used for test-driven development?