The article discusses an issue encountered while upgrading an API from Rails 6 to Rails 7, specifically regarding timestamp precision in request specs. It highlights how Rails truncates timestamps to milliseconds, causing test failures. The solution is to adjust the ActiveSupport::JSON::Encoding.time_precision setting to 6, ensuring accurate comparisons and functionality.

The author shares their positive experience with test-driven development (TDD) after a few months, noting improvements in code quality and simplicity. They demonstrate how to effectively test optional dependencies in Ruby using RSpec’s hide_const helper, which simplifies testing by temporarily removing constants. The post concludes with reflections on writing shorter articles.

RSpec is honestly the best testing framework I have ever worked with, and I dread the day I will to switch to a language that

I had to solve an interesting performance issue today, so I thought I might as well document it for the posterity. It involved fixing an