Download to read offline
Uploaded byInhacking
SE2016 iOS Alexander Voronov "Test driven development in real world"
The document discusses Test Driven Development (TDD) and its application in real-world scenarios, emphasizing the importance of writing tests first and incorporating automated testing practices. It covers various testing styles (classical and mockist), introduces strategies for implementing TDD in both new and legacy projects, and highlights the benefits of continuous integration and deployment. Key concepts include the feedback loop, test doubles, and the boy scout rule for maintaining code quality.
More Related Content
Similar to SE2016 iOS Alexander Voronov "Test driven development in real world"
SE2016 iOS Alexander Voronov "Test driven development in real world"
- 1. @aleks_voronov TDD in RealWorld ALEXANDER VORONOV @aleks_voronov
- 2.
- 3.
- 4.
- 5. @aleks_voronov OH YOU THINKIT'S FASTER?
- 6.
- 7.
- 8.
- 9.
- 10.
- 11.
- 12.
- 13.
- 14.
- 15.
- 16.
- 17.
- 18.
- 19. @aleks_voronov TDD AS APRACTICE DEVELOPMENT PRACTICE
- 20. @aleks_voronov TESTS FIRST RED ‣GREEN ‣ REFACTOR
- 21. @aleks_voronov THINK FIRST THINK ‣RED ‣ GREEN ‣ REFACTOR
- 22.
- 23. @aleks_voronov SOUNDS LIKE WE ACHIEVE SAMEWITH UNIT TESTS...
- 24.
- 25. @aleks_voronov ONLY NECESSARY CODE BESTCODE IS NO CODE
- 26. @aleks_voronov RED STAGE SCHOOL TRUETEST ALWAYS REMEMBERS WHERE IT COMES FROM
- 27.
- 28. @aleks_voronov CLEANER INTERFACES ‣ TESTSARE FIRST TO USE CODE
- 29. @aleks_voronov CLEANER INTERFACES ‣ TESTSARE FIRST TO USE CODE ‣ PLAY IN PURE SANDBOX ENVIRONMENT
- 30. @aleks_voronov CLEANER INTERFACES ‣ TESTSARE FIRST TO USE CODE ‣ PLAY IN PURE SANDBOX ENVIRONMENT ‣ UNBIASED DESIGNING
- 31. @aleks_voronov CLEANER INTERFACES ‣ TESTSARE FIRST TO USE CODE ‣ PLAY IN PURE SANDBOX ENVIRONMENT ‣ UNBIASED DESIGNING ‣ POORLY DESIGNED CODE WITH TESTS IS STILL BETTER THAN POORLY DESIGNED CODE WITHOUT TESTS
- 32.
- 33. @aleks_voronov WHAT IF INEED CODE FIRST?
- 34.
- 35.
- 36. @aleks_voronov SPIKE SOLUTION ‣ ISOLATE ‣SHORTEN FEEDBACK LOOP: REPL, PLAYGROUND, FIDDLE
- 37. @aleks_voronov SPIKE SOLUTION ‣ ISOLATE ‣SHORTEN FEEDBACK LOOP: REPL, PLAYGROUND, FIDDLE ‣ SETUP SANDBOX: LIBRARIES, STUBBED RESPONSES
- 38.
- 39.
- 40.
- 41.
- 42.
- 43.
- 44.
- 45.
- 46.
- 47.
- 48. @aleks_voronov TEST DOUBLES ‣ DUMMIES ‣FAKES ‣ STUBS
- 49. @aleks_voronov TEST DOUBLES ‣ DUMMIES ‣FAKES ‣ STUBS ‣ SPIES
- 50. @aleks_voronov TEST DOUBLES ‣ DUMMIES ‣FAKES ‣ STUBS ‣ SPIES ‣ MOCKS
- 51.
- 52.
- 53.
- 54. @aleks_voronov CLASSICAL TESTING ‣ ABOUTSTATE ‣ CAN BREAK ENCAPSULATION
- 55. @aleks_voronov CLASSICAL TESTING ‣ ABOUTSTATE ‣ CAN BREAK ENCAPSULATION ‣ USE STUBS
- 56.
- 57.
- 58. @aleks_voronov MOCKIST TESTING ‣ ABOUTBEHAVIOUR ‣ TELL, DON'T ASK
- 59. @aleks_voronov MOCKIST TESTING ‣ ABOUTBEHAVIOUR ‣ TELL, DON'T ASK ‣ USE MOCKS
- 60.
- 61.
- 62. @aleks_voronov TESTS ARE FIRST WHOLEAVE FEEDBACK $ %
- 63.
- 64.
- 65.
- 66. @aleks_voronov INTRODUCING TDD TO YOURTEAM ‣ JUST START WRITING TESTS
- 67. @aleks_voronov INTRODUCING TDD TO YOURTEAM ‣ JUST START WRITING TESTS ‣ TEST SIMPLEST THINGS
- 68. @aleks_voronov INTRODUCING TDD TO YOURTEAM ‣ JUST START WRITING TESTS ‣ TEST SIMPLEST THINGS ‣ GET USED WITH TOOLS
- 69. @aleks_voronov INTRODUCING TDD TO YOURTEAM ‣ JUST START WRITING TESTS ‣ TEST SIMPLEST THINGS ‣ GET USED WITH TOOLS ‣ LET OTHERS SEE WHAT YOU DO
- 70. @aleks_voronov INTRODUCING TDD TO YOURTEAM ‣ JUST START WRITING TESTS ‣ TEST SIMPLEST THINGS ‣ GET USED WITH TOOLS ‣ LET OTHERS SEE WHAT YOU DO ‣ INTRODUCE BOY SCOUT RULE
- 71. @aleks_voronov INTRODUCING TDD TO YOURTEAM ‣ JUST START WRITING TESTS ‣ TEST SIMPLEST THINGS ‣ GET USED WITH TOOLS ‣ LET OTHERS SEE WHAT YOU DO ‣ INTRODUCE BOY SCOUT RULE ‣ PAIR PROGRAMMING
- 72.
- 73.
- 74. @aleks_voronov INTRODUCING TDD TO LEGACYPROJECT ‣ REMEMBER BOY SCOUT RULE?
- 75. @aleks_voronov INTRODUCING TDD TO LEGACYPROJECT ‣ REMEMBER BOY SCOUT RULE? ‣ START WITH CRITICAL FEATURES
- 76. @aleks_voronov INTRODUCING TDD TO LEGACYPROJECT ‣ REMEMBER BOY SCOUT RULE? ‣ START WITH CRITICAL FEATURES ‣ FIND LOWEST POINT YOU CAN TEST
- 77. @aleks_voronov INTRODUCING TDD TO LEGACYPROJECT ‣ REMEMBER BOY SCOUT RULE? ‣ START WITH CRITICAL FEATURES ‣ FIND LOWEST POINT YOU CAN TEST ‣ ADD TESTS, THEN REFACTOR
- 78. @aleks_voronov INTRODUCING TDD TO LEGACYPROJECT ‣ REMEMBER BOY SCOUT RULE? ‣ START WITH CRITICAL FEATURES ‣ FIND LOWEST POINT YOU CAN TEST ‣ ADD TESTS, THEN REFACTOR ‣ STEP BY STEP
- 79. @aleks_voronov INTRODUCING TDD TO LEGACYPROJECT ‣ REMEMBER BOY SCOUT RULE? ‣ START WITH CRITICAL FEATURES ‣ FIND LOWEST POINT YOU CAN TEST ‣ ADD TESTS, THEN REFACTOR ‣ STEP BY STEP ‣ YES, IT TAKES TIME
- 80.
- 81.
- 82.
- 83.
- 84.
- 85.
- 86. @aleks_voronov MAKE IT FUNAND CLEAR
- 87.
- 88. @aleks_voronov MAKE IT FUNAND CLEAR
- 89.
- 90. @aleks_voronov MAKE IT FUNAND CLEAR
- 91.
- 92.