TDD on Legacy Code

on YouTube ↗52m

" summary

Shows how to make untestable legacy Java code testable using the TripServiceKata exercise by Sandro Mancuso. Demonstrates applying seam techniques to introduce test seams, then refactoring the design to obtain clean, testable code; covers practical principles and techniques for bringing legacy code under test.

AI-written summary · about

" chapters (17)

1. 0:00TDD on legacy code
2. 3:17Trips Service Kata rules
3. 6:53Analyzing legacy code
4. 8:19First unit test
5. 13:04Behavior with tests
6. 16:18Isolate deps with test subclasses
7. 20:01Cover first code branch
8. 21:54Wishful thinking tests
9. 25:11From failing to green test
10. 28:08Test unknown users
11. 31:40Stub external deps
12. 33:24Refactor for readability
13. 36:55Next steps for coverage
14. 38:26Code responsibility
15. 44:02Repository interfaces
16. 49:51Complex collaborators tests
17. 51:24Q&A

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