At Graphite, a company initially lacking a robust testing culture, efforts over two years have successfully integrated testing practices into the development process, although challenges with poorly architected tests have emerged. Initially influenced by former engineers from Meta who carried over a lax attitude towards testing, the company has since shifted towards a more rigorous approach, emphasizing the importance of well-structured test architecture for maintainability. Drawing from lessons in "Clean Code," the narrative highlights the pitfalls of neglecting test quality, equating it to having no tests at all, as messy tests can hinder code evolution and increase maintenance burdens. To address these issues, Graphite has adopted strategies like refactoring code to separate logic from side effects, employing domain-specific languages to streamline test cases, parameterizing tests to reduce duplication, and designing tests with clear failure messages for easier debugging. These changes have not only improved test reliability but also optimized the test suite's performance, demonstrating that a disciplined and patient approach can substantially enhance a team’s testing culture.