Programowanie wspierane przez testy po londyńsku

Transcript

1. JAKUB ZALAS PO LONDYŃSKU PROGRAMOWANIE WSPIERANE PRZEZ TESTY PHP EDITION
2. Jakub Zalas @jakub_zalas @jakub_zalas @jakzal
3. - Behaviour - Veri fi cation - The chain premise - Collaboration tests - Test doubles - Contract tests - Mocking hell PLAN
11. https://blog.thecodewhisperer.com/permalink/integrated-tests-are-a-scam Beware the Integrated Tests Scam J. B. Rainsberger / @jbrains
22. VS
27. VS
32. DATA CALCULATIONS ACTIONS Grokking Simplicity Eric Normand 2021
35. “TEST A CHAIN BY TESTING EACH LINK” MICHAEL "GEEPAW" HILL https://www.geepawhill.org/2018/01/16/underplayed-the-chain-premise-in-depth/
41. WE GET TO CHOOSE WHEN AND WHERE WE BREAK THE DEPENDENCY CHAIN FOR TESTING
44. COLLABORATION TESTS
45. INDIRECT INPUT INDIRECT OUTPUT
52. xUnit Test Patterns Refactoring Test Code Gerard Meszaros 2007
53. WE HAVE DETECTED UNUSUALLY HIGH SPENDING ON YOUR CARD IN THESE CATEGORIES: • YOU SPENT £101.19 ON FOOD • YOU SPENT £27.70 ON ENTERTAINMENT https://github.com/testdouble/contributing-tests/wiki/Unusual-Spending-Kata
54. SPY & STUB HAND-CRAFTED
56. A REAL OBJECT, BUT A DUMMY WOULD WORK AS WELL.
58. A SPY
59. A SPY
63. A STUB
64. A STUB
67. MOCK OBJECT HAND-CRAFTED
68. A MOCK OBJECT
69. A MOCK OBJECT
71. A MOCK OBJECT
72. STUB & MOCK OBJECT WITH A MOCKING FRAMEWORK
73. A STUB
74. A MOCK OBJECT
76. A MOCK OBJECT
77. CONTRACT TESTS aka "Role tests"
84. UnusualSpendingNotificationUseCaseTest
85. UnusualSpendingNotificationUseCaseTest
86. UnusualSpendingQueryTest UnusualSpendingQueryTest UnusualSpendingNotificationUseCaseTest
119. THANK YOU Verify behaviour Mock roles, not objects Listen to your tests Leverage test doubles as a TDD tool @jakub_zalas @jakub_zalas @jakzal