Einführung Test-driven Development

1. Test-Driven Development Python Barcamp – April 2013 Timo Stollenwerk

2. Testing ???

3. Do not break things! Timo Stollenwerk

4. What do we get? ● Code that works ● Proof that is works ● Lower defect rate ● Cheaper bug fixing

5. Test-Driven Development

9. What do we get? ● Shorter development cycles ● Fast development process ● Satisfaction ● Fun!

10. No code without a failing test

11. Make test pass (quickly)

12. Test

13. Fix

14. Refactor

15. What do we get? ● Clean Code that works ● Agile code

16. Testing Pyramid

17. Unit Testing

18. Integration Tests ● Schema ● Factory Type Info ● Factory ● Adding ● View

19. Functional Testing

20. Functional Tests ● „Second line of test defense.“ (Martin Fowler) ● Testable specification ● Failure in a functional test > missing unit test

21. Book Recommendations

22. Test-Driven Development contact@timostollenwerk.net twitter: @timostollenwerk irc: tisto Timo Stollenwerk

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