Aug 14, 2023 Written by David Barlev

Test-Driven Development (TDD) Practices: Why You Should Give It a Shot

Test-Driven Development

You know those moments when you’re testing your code and a small mistake ruins hours of hard work? We’ve all been there. But TDD might just be the solution to our problems. Test-Driven Development is the practice where developers write automated tests for their code before even writing it. It’s time to take your coding game to the next level with TDD. 


First off, let’s talk about the benefits TDD practices can bring to the table. When you write tests for your code up front, you have a clear idea of the requirements and the desired outcome. If you’re building a platform, this clarity helps reduce ambiguity. The resulting code will then be of higher quality. TDD also forces developers to write code in small, manageable chunks, making it much easier to test, maintain, and refactor the code. The cherry on top is that in the long run, it’s an internal tool that saves you time by reducing testing time and preventing bugs from appearing in production. So yeah, it’s pretty beneficial.

Best Practices: 

Now that we’ve addressed TDD’s advantages, it’s time to look at best practices. 

1. Start by writing a test that fails

The test should be specific, clear, and easy to understand. Write a test that will help you focus on writing code that meets the requirements and specifications.

2. Write minimum code to pass the test

Once you have written the test, write the minimum code necessary to make it pass. Keep the code simple and straightforward, ensuring it meets the test requirements.

3. Refactor the code

After you have made the test pass, take some time to refactor the code. Refactoring makes the code easier to understand and maintain over time. It is essential to maintain the code quality and prevent the accumulation of technical debt.

4. Run the tests

After refactoring, run the tests to ensure that they still pass with the new changes you made. If they don’t pass, revert to the previous version and try again.

5. Repeat the process

Repeat this process until all the requirements and specifications of the project have been met. By using TDD, you can keep the codebase simple, easy to maintain, and error-free. 

TDD can feel like another step in an already long process. But in the long run, it’s worth it. Seeing code produced with minimal debugging and testing time is a feeling like no other. And if that’s not enough, you get to impress your coworkers or even clients with your newfound TDD skills. Who knows, you may even inspire others in your team to hop on board.

In conclusion, TDD may seem time-consuming, but the benefits of better code quality, improved clarity, and reduced debugging make it a valuable practice. With TDD, developers can write smaller chunks of code that are easier to test and maintain. Even if you’re outsourcing platform development, you can still make sure your devs are leveraging TDD. By writing tests first and then coding, developers can save time and avoid creating complex code. Refactoring is the final stage that aims to make the code base cleaner and more maintainable. And of course, the cherry on top is the satisfaction that comes with creating code that works the first time around. Give TDD a shot, and you’ll be amazed at the results it can bring to your codebase.