Integration tests

I’m really enjoying answering your questions and comments, because it’s making me thing about things I had clearly taken for granted! This week, a question I received via email…

In response to Thinking about APIs reader Richard made this comment directly to me via email:

Have you thought about integration tests? That could solve some of the issues about the changing contracts.

Yes, integration tests — indeed all kinds of automated checking — definitely help to establish our software’s correctness. ...