What is a primary benefit of Test Driven Development?

Test Driven Development (TDD) is a methodology where developers write tests for a feature before writing the actual code to implement that feature. One of the primary benefits of TDD is that it significantly improves the quality of the code and leads to a reduction in bugs.

When tests are written first, developers clearly define the expected behavior of the code before implementing it. This process not only helps ensure that the code meets the specified requirements but also provides a safety net that prevents future changes from breaking existing functionality. Because tests are continually run as development progresses, issues can be identified and resolved early in the development cycle. This proactive approach to quality leads developers to create more reliable and maintainable software.

By establishing a strong suite of automated tests, TDD fosters a greater sense of confidence among developers, allowing them to refactor code or implement new features with reduced fear of inadvertently introducing defects. Ultimately, this results in higher-quality products that are delivered with fewer bugs, making the TDD approach a valuable practice within software development teams.