--- title: > 92 changed files with 885 additions and 156 deletions pubDate: 2023-09-29 permalink: >- daily/2023/09/29/92-changed-files-with-885-additions-and-156-deletions tags: - software-development - automated-testing - test-driven-development - refactoring --- Today, I refactored some code on a client's Drupal project I've been working on. This is what the commit says: > Showing 92 changed files with 885 additions and 156 deletions So, it's not a small refactor. As I worked on the custom modules needed for the site, I noticed that some common functionality was spread over multiple modules. This refactor moved that functionality into its own module, which is now a dependency of the others. The code is better, and the responsibilities of the modules are clearer. Whilst a large amount of those additions are adding test modules with test configuration, it's not a small refactor. ## Here's the thing This is what it says at the bottom of the CI pipeline output: > OK (79 tests, 565 assertions) This is the same number of passing tests and assertions I had before I started the refactor, so I know the functionality still works. If I didn't have those tests, I wouldn't have done the refactor.