Test-driven development with PHPUnit

Transcript

1. Test-driven 
 Development
 with PHPUnit Oliver Klee, 2018-06 @oliklee typo3-coding@oliverklee.de

2. This is Oliver Klee (me!) Workshop teacher •unit testing •extension

   development •software quality •saying „no“, consent culture TYPO3 extension
 developer (wanna-be)
 singer @oliklee oliverklee oliverklee.de

3. unterstand TDD become test-infected have fun Workshop goals

4. Workshop Rules

5. Stand up
 for your tests

6. Workshop roadmap 1. Terms & concepts 2. Testing patterns 3.

   Naming things 4. Code katas

7. Workshop roadmap 1. Terms & concepts 2. Testing patterns 3.

   Naming things 4. Code katas

8. Unit
 Tests?

9. Manual testing is cumbersome

10. Automated
 testing
 is fast

11. Unit tests for the
 TYPO3 Core

12. > 4400 tests

13. < 14 seconds

14. Verify that your code does what you expect

15. Make sure that
 your changes won‘t
 break anything

16. Keep others
 from breaking your code

17. Don’t break anything
 even in complex
 projects

18. Create a safety net for refactoring or for
 TYPO3 updates

19. Improve the structure of your code

20. Green feels good!

21. https://github.com/oliverklee/tdd-reader
 /Exercises/tdd-exercises-en.md

22. Let’s get
 some terms
 straight

23. The two programming modes clean hacky

24. Testsuite Testcase Test Assertion Test Test Testcase

25. The life cycle of a test new FooTest(); setUp(); /**

    @test */ lifeIsGood(); tearDown();

26. 4 test phases set up setUp()
 code in the test

    method exercise method call verify assert…() tear down tearDown()

27. Code test-first write
 test write
 code refactor

28. Workshop roadmap 1. Terms & concepts 2. Testing patterns 3.

    Naming things 4. Code katas

29. Workshop roadmap 1. Terms & concepts 2. Testing patterns 3.

    Naming things 4. Code katas
30. None

31. https://github.com/oliverklee/tdd-reader
 /Exercises/tdd-exercises-en.md

32. Test levels http://filipdefar.com/2015/06/tested-be-thy-name.html

33. Unit tests are small and fast

34. Integration tests test how components work together in TYPO3:
 „functional

    tests“

35. Systemtests test the big picture

36. Test types

37. Blackbox tests test the public API

38. Whitebox tests inner workings test the

39. Functional
 tests

40. Acceptance tests Selenium Codeception

41. Anti-
 zombie tests-

42. Regression tests

43. Smoke tests

44. Smoke tests

45. Story tests for Behavior-driven development (BDD) Behat Codeception

46. Workshop roadmap 1. Terms & concepts 2. Testing patterns 3.

    Naming things 4. Code katas

47. Workshop roadmap 1. Terms & concepts 2. Testing patterns 3.

    Naming things 4. Code katas

48. Naming
 Tests

49. Use meaningful test names classCanBeInstantiated setTitleSetsTitle setSizeWithZeroThrowsException hasTitleForEmptyTitleReturnsFalse Name the

    behavior. Name the preconditions. Name the method. Don’t use
 “works” or
 “works correctly”. measureFrubbleWorksCorrectly
50. None

51. Workshop roadmap 1. Terms & concepts 2. Testing patterns 3.

    Naming things 4. Code katas

52. Workshop roadmap 1. Terms & concepts 2. Testing patterns 3.

    Naming things 4. Code katas
53. None