Testing First - Getting The How
summary
Shows a pragmatic path to testing-first by building a .NET Web API with xUnit, an in-memory repository and WebApplicationFactory tests that exercise inputs and outputs rather than internals, uses microspikes and a small “making app” to iterate fast, implements POST/PUT/DELETE endpoints and adds a 409 conflict for duplicate posts, refactors storage from list to dictionary without breaking tests, and warns that tools like SonarCloud 100% coverage can mask problems (one real case passes after 80% of code removed).
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chapters (21)
- 0:00Introduction
- 1:36Testing misconceptions
- 3:04Ignoring functional tests
- 8:20Confirmation bias in testing
- 11:08Start with the problem
- 13:37Collaborate with testers
- 16:04Technical testing strategies
- 17:55Micros spikes for ideas
- 20:23Simplify testing with apps
- 22:51Avoid over-mocking
- 24:41Test APIs outside-in
- 27:13Live demo setup
- 31:53First test for to-do app
- 36:48Build to-do API test-by-test
- 45:51Add duplicate validation
- 48:18Refactor safely with tests
- 50:30Benefits of testing-first
- 52:38Avoid over-abstraction
- 55:11Balance DRY in tests
- 58:21Real-world testing-first
- 1:00:10Testing-first journey
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