The article discusses the challenges of maintaining a website's CSS as features expand and the need for refactoring to address technical debt. The author highlights the importance of visual regression testing to avoid bugs during this process. Although snapshot testing is a common solution, it can be slow and prone to issues from various uncontrollable factors. Fortunately, Playwright offers built-in visual comparison features that simplify the process, allowing for effective testing without the pitfalls of traditional snapshot methods.
Comparing visual artifacts can be a powerful, if fickle, approach to automated testing.
Clean CSS refactoring helps pay down technical debt and supports future features like dark mode.
Snapshot testing can become difficult and challenging due to numerous uncontrollable factors.
Playwright's visual comparison feature proved to be a useful tool for maintaining visual integrity during refactoring.
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