1. TDD in PHP: A Brief Example

2. About Me Jeremy Kendall PHP Developer since 2001 Organizer Memphis PHP Contributor to FRAPI project (getfrapi.com) [email_address] @JeremyKendall http://jeremykendall.net

3. TDD in PHP: A Brief Example Test Driven Development, you say?

4. Frankly, my dear . . .

7. ” Test Driven Development (TDD) is a software development process that relies on the repetition of a very short development cycle . . .”

9. Run all tests, watch new test fail

10. Write just enough code to make the test pass

11. Run all tests, watch new test pass

12. Lather, rinse, repeat . . .

13. Refactor

15. Confidence

16. Faster time to resolution

17. Documentation

19. False sense of confidence

20. Without management and team buy-in, TDD is DOA

23. Demonstrate refactoring with confidence

24. Demonstrate TDD impact on design decisions

26. Tutor class (consumes calculator)

29. Integer overflow

31. Tutor_Calculator_IntegerCalculator

33. Uses calculator class to test responses

34. Favors composition over inheritance

35. Tutor_MathTutor

37. PHPUnit will be configured with phpunit.xml

39. Tells PHPUnit where to look for our tests

41. Registers a simple autoloader

42. LET'S GET IT ON!

44. PHPUnit - http://www.phpunit.de/

45. Xdebug - http://www.xdebug.org/

46. The code example in this presentation was adapted for PHP from Przemysław Bielicki's TDD video tutorial at Agile Software Development. - http://bit.ly/byDZOA