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Unit Testing in Swift

Avatar for DAloG DAloG
March 19, 2016
Programming
370
2

Unit Testing in Swift

Avatar for DAloG

DAloG

March 19, 2016

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Transcript

  1. DO YOU WANT TO TALK ABOUT UNIT TESTIG IN SWIFT?

    #itsat @daloog ¯\_(ϑ)_/¯ Alexey Demedetskiy Sigma Software

  2. THANK YOU APPLE!

  3. 99% OF IOS APPS ARE SHIPPED WITH UNIT TESTING!

  4. WORKOUT TIME!!

  5. None

  6. (˽°□°)˽Ɨ ˍʓˍ

  7. ARE UNIT TESTS WORTH IT? HTTP://STACKOVERFLOW.COM/QUESTIONS/237000/IS- THERE-HARD-EVIDENCE-OF-THE-ROI-OF-UNIT-TESTING

  8. TIME += 30% HTTP://COLLABORATION.CSC.NCSU.EDU/LAURIE/PAPERS/ TDDPAPERV8.PDF

  9. DEFECTS -= 60% HTTP://RESEARCH.MICROSOFT.COM/EN-US/GROUPS/ESE/ NAGAPPAN_TDD.PDF

  10. TESTS ARE GREAT!

  11. !(ಠፅಠ!)

  12. WHY WE ARE NOT RUBY?

  13. None

  14. 1) MARKET HUSTLE

  15. 2) APPLE FRAMEWORKS

  16. 3) LACK OF EXPERTISE

  17. 4) OUTSOURCE

  18. ⌛ ➡

  19. UNIT TESTS ARE WRITTEN BY DEVELOPERS.

  20. None

  21. TESTS ARE DEVELOPERS RESPONSIBILITY

  22. DON’T SELL THEM WRITE THEM

  23. WHY DO WE NEED TO WRITE TESTS?

  24. 1) REFACTORING

  25. 2) CONFIDENCE

  26. 3) CATCHING ERRORS

  27. 4) REGRESSION

  28. ➡❌➡⌨➡✅

  29. HOW TO WRITE TESTS?

  30. None

  31. UNIT AS SMALLEST LOGIC CONTAINER

  32. FUNCTION

  33. INPUT ➡ OUTPUT

  34. None
  35. None

  36. PURE FUNCTIONS

  37. METHOD

  38. MUTATION OF STATE

  39. None

  40. VOID ➡ VOID

  41. INPUT ➡ OUTPUT

  42. DOMAIN == CODOMAIN

  43. ALL MY CODE IS FUNCTIONAL, WHERE EVERY FUNCTION TAKES ONE

    ARGUMENT: ALL MY PROGRAM'S STATE.

  44. OBJECT

  45. None

  46. DEPENDENCIES

  47. TRANSITIVE DEPENDENCIES

  48. None

  49. INITIAL STATE

  50. ORDER OF OPERATIONS

  51. UNIT AS SMALLEST LOGIC CONTAINER

  52. None

  53. TESTS

  54. GWT

  55. GIVEN WHEN THEN

  56. None

  57. AAA

  58. ARRANGE ACT ASSERT

  59. None

  60. SRV

  61. SETUP RECORD VERIFY

  62. FUNCTIONS - GWT

  63. METHODS - AAA

  64. OBJECTS - SRV

  65. VALUE TESTS

  66. BEHAVIOR TESTS

  67. INTEGRATION TESTS

  68. CLIENT TESTS

  69. PYRAMID OF TESTS HTTP://TODDLITTLEWEB.COM/WORDPRESS/2014/06/23/ THE-TESTING-DIAMOND-AND-THE-PYRAMID-2/

  70. None
  71. None

  72. TEST COVERAGE HTTP://MARTINFOWLER.COM/BLIKI/ TESTCOVERAGE.HTML

  73. None
  74. None

  75. TESTS

  76. None

  77. SIDE EFFECTS

  78. RETURN VALUE

  79. FUNCTION CALL

  80. STATE CHANGE

  81. SIDE EFFECTS

  82. None

  83. SWIFT

  84. DEPENDENCIES

  85. STRUCT

  86. INTERNAL

  87. None

  88. PROTOCOL

  89. EXTERNAL

  90. XCTEST

  91. QUICK / NIMBLE HTTPS://GITHUB.COM/QUICK/QUICK

  92. RECORDER HTTPS://GIST.GITHUB.COM/ALEXEYDEMEDETSKIY/ 7A148559C81472A314F7

  93. None

  94. SWIFT

  95. None
  96. None

  97. HTTPS://GITHUB.COM/XNEKOIX/FUNTIONALMVP

  98. HTTP://WWW.AMAZON.COM/WORKING-EFFECTIVELY- LEGACY-MICHAEL-FEATHERS/DP/0131177052

  99. HTTP://WWW.AMAZON.COM/EXTREME-PROGRAMMING- EXPLAINED-EMBRACE-EDITION/DP/0321278658

  100. QUESTIONS: @DALOOG [email protected] NOBIDON