Maintaining quality
The previous sections detailed various types of tests and metrics that can be used for describing the quality of an application. With these in mind, it is time to start thinking about the tools that can be used for maintaining high quality or even increasing quality.
Code reviews
One of the most powerful tools for guarding code quality is a code review. When working with Git, a pull request needs to be performed to merge the changes of a developer back into the mainline. A pull request allows one or more other developers to review all changes and comment on them. The developer that opened the pull request can review the comments and make changes accordingly, increasing the quality of the changes while they keep working.
For code reviews to work at their best, it is important not to see them as a gate that you must get your changes through with as little effort as possible. It is much more fruitful to have an open attitude based on the assumption that everyone...
