How does test driven development help in long-term software maintenance?
[Test driven development](https://www.samyak.com/news-post/test-driven-development/) helps in long-term software maintenance by keeping code clean, tested, and easy to change. Since tests are written before code, every feature is covered from the start. This allows developers to update or refactor code safely without breaking existing functions. [Test driven development ](https://www.samyak.com/news-post/test-driven-development/)also reduces bugs, improves code readability, and acts as live documentation. Over time, this lowers maintenance cost and makes software stable and easy to manage.