Testing Legacy Code: Strategies for Resilient and Evolving Rails Applications

Discover strategies for transforming legacy code into maintainable, resilient systems through effective testing in this 34-minute conference talk from RailsConf 2022. Explore the challenges of supporting legacy code and learn how to identify high-impact areas for test implementation. Gain insights into distinguishing between high-value and low-value tests, and master techniques for crafting tests that reduce the cost of future changes. Suitable for developers of all experience levels, this talk provides valuable knowledge for improving legacy code maintenance, with a focus on Rails applications. While familiarity with Rails and automated testing frameworks is beneficial, it is not mandatory to benefit from the concepts presented.