Unit Tests Don’t Make Features Work — They Keep Them Working

📰 Medium · JavaScript

Learn why unit tests are crucial for maintaining working features, not just confirming existing functionality

intermediate Published 4 Jun 2026
Action Steps
  1. Write unit tests for new features to catch bugs early
  2. Run existing unit tests after making code changes to ensure features still work
  3. Refactor code to make it more testable and maintainable
  4. Use a testing framework to automate unit test execution
  5. Review and update unit tests regularly to keep them relevant
Who Needs to Know This

Developers and QA engineers benefit from understanding the importance of unit tests in ensuring feature reliability and stability over time

Key Insight

💡 Unit tests are essential for maintaining feature reliability and stability, not just initial functionality

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💡 Unit tests don't just confirm code works, they keep it working over time!

Key Takeaways

Learn why unit tests are crucial for maintaining working features, not just confirming existing functionality

Full Article

Here’s a belief a lot of developers carry, often silently: “Unit tests are just extra work that confirms code I already know works.” Continue reading on Medium »
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