3 Testing and Test Driven Development (TDD)

Poll time. How does your development process look like?

1. I don’t test my code at all.

2. I implement some code and then I test it.

3. I create a test and then implement the code.

Why do we test our code? This chapter is not only about ensuring that your code works as expected, but also about a good process to achieve this.

Where should you start building a system? With stories you want to be able to tell about the finished system.

—Kent Beck

• 3.1 Testing
• 3.2 Test Driven Development (TDD)

References

• Beck, K. (2002) Test Driven Development: By Example. Addison-Wesley Professional.