fast-check
https://github.com/dubzzz/fast-check
TypeScript
Property based testing framework for JavaScript (like QuickCheck) written in TypeScript
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- Issues
- Request: type-safe mutually recursive arbitraries
- ⬆️ Update dependency typescript to v6.0.0-dev.20260319
- 🪝 Support for `beforeEach`/`afterEach` in `@fast-check/jest`
- Make it possible to generate objects from other realms
- WIP rework skill deeply
- `float()`, `double()`, `float32Array()`, and `float64Array()` never produce non-canonical NaNs
- Add support for abort signal on assert
- simpleFraction arbitrary
- Support depth on array and anything derived from them
- chainUntil
- Docs
- TypeScript not yet supported