Test faster, fix more

on YouTube ↗32m

" summary

Introduces property based testing with Hypothesis for Python, generating thousands of inputs (lists, datetimes, floats, strings, Swagger-driven APIs) and using shrinking to produce minimal failing examples. Demonstrates a real bug where identity vs equality on short strings lets a bank match a buyer to themself and shows the fix (use != not is). Mentions stateful testing (rule-based state machines), local failure storage, and using property tests to compare implementations and catch subtle timezone and negative-ID bugs.

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" chapters (13)

1. 0:00Introduction
2. 1:10Who am I
3. 2:24Outline
4. 3:57What is propertybased testing
5. 6:44Quick cheat sheet
6. 8:59Hypothesis
7. 11:36Minimal Usage
8. 14:03Examples
9. 15:04Strategies
10. 17:17Stateful testing
11. 18:49Demo
12. 22:14Testing
13. 27:57Conclusion

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