Andrzej Krzywda is a software developer who has been using Test Driven Development (TDD) since 2001. TDD involves writing tests before production code to help visualize goals and requirements. The tests help achieve project goals and requirements by ensuring the code works as intended. TDD uses both acceptance tests to verify functionality meets requirements, and unit tests to ensure code quality.

1. TDD with Rails
AndrzejKrzywda.com
RuPy 2008
Poznan, Poland

2. Who am I?

3. Andrzej Krzywda
• Developing software since 2000
• Java/.NET/PHP/Python/Rails

4. Now mostly Rails

5. First Rails app in
November 2004

6. I started doing TDD in 2001

7. Also involved in a
project called Resolver
One, written in
IronPython

8. Started a Rails company
in 2007

9. Test Driven Development

10. The goals in a software
project

11. Requirements are goals

12. What helps in achieving
goals?

13. Goal visualization