In some places and teams I've worked with, I've been asked what % of test coverage we want to shoot for and I've never had a good answer. I personally try to write tests that I think help define or validate a piece of code I work on.
When I run a code coverage scan in Android Studio, it's usually quite a low percentage. However it seems odd to me that you'd have a test for an immutable model that tests all fields.
What do you think? How would you measure coverage?