Coding, Unit Tests, and Pull Requests

The source code and unit tests are the most visible outputs of the construction phase. However, this chapter is not about how to write source code; rather, it is about the process for writing code, unit testing it, and then merging it into a stable branch. The key thing about this process is that, just like the Software Detailed Design activities, the coding and unit tests are done on a just-in-time basis.