This article explains how to use the Benchmark module in Ruby to measure and report execution time for code snippets. It includes examples of different benchmarking methods and how to interpret the results. Instructions for installation and contribution to the module are also provided.

Undercover is a Ruby gem that helps developers identify untested methods, classes, and blocks by analyzing git diffs and SimpleCov coverage reports. It works with any Ruby CI pipeline or locally as a CLI tool, providing automated warnings for untested code changes to ensure timely test writing. The gem can be easily integrated into applications by adding it to the Gemfile and configuring it with SimpleCov.