Quality Code: Software Testing Principles, Practices, and Patterns

Sometimes Test the Framework

To every rule, there are exceptions. When we talked about frameworks, we talked about things like trust, having tests, guarantees, and correctness. Sometimes, those conditions are not true. Other times, you cannot afford to assume they are true. Let’s look at some times in which you need to test the framework.

Imagine you are part of a team working on a large software system, perhaps a product consisting of millions of lines of code, hundreds of developers, and using hundreds of third-party packages across the entire code base. In any given period of time between releases, perhaps dozens of those packages change and may need to be upgraded. How do you update the packages safely without breaking your system? You can ...