Hypothesis: Simpler Powerful Test Cases
summary
Property-based testing using Hypothesis for Python with works with pytest and unittest and a simple pip install workflow. Write properties (given, assume) and Hypothesis generates up to ~2000 cases, finds surprising failures (double-negation breaks on None and certain floats), finds minimal counterexamples by shrinking to the simplest failing input, and caches failures for replay. It supplies strategies for ints, floats, text, dates, lists, recursive structures, building objects and stateful tests so complex scenarios are generated and reproduced.
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chapters (9)
- 0:00Introduction and background
- 2:02Introduction to hypothesis
- 4:52Basic testing strategies
- 8:25Data generation features
- 12:14Working with complex types
- 14:26Advanced data generation
- 18:11Caching and stateful testing
- 20:48Live code demonstration
- 24:07Questions and answers
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