02:07 - Testing

07:28 - Adding Tests Later; When is the test useful?

14:35 - Testing the Happy Path

16:48 - Writing Tests First

18:53 - Sharing Code

27:34 - Testing Error Messages

29:04 - External vs Mocking/Stubbing

34:11 - Exploratory Tests and Characterization Tests

39:07 - Refactoring

47:22 - Mocking and Stubbing (Cont’d)

 

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