Sensible Testing

on YouTube ↗37m

" summary

Argues for testing shaped by concrete practices not coverage quotas, recommending consistent distance, a test pyramid with more fast unit tests, and idempotent, distinct specs. Critiques VCR for hiding service behavior and shows building a fake service (Shamrock) as an alternative, using dependency injection and a lightweight Rack thread. Mentions using rspec’s random ordering to find order-dependent failures, cites DHH’s 1:2–1:3 code:test ratio warning, and a real case where one bug breaks 124 tests.

AI-written summary · about

" chapters (7)

1. 0:00The state of testing
2. 2:23Coverage and its limits
3. 5:52Introducing the CUPID acronym
4. 9:30Core principles of testing
5. 17:30Practical code improvements
6. 26:41Common testing pitfalls
7. 33:52Reflective testing culture

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