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
- Drop unneeded nextInt(/*no param*/)
- Drop unneeded defensive checks
- 🏷️ Add readonly annotations to array arbitraries
- docs: add `@traversable/schema` to ecosystem
- `examples` doesn't play well with `fc.context()`
- Make `fc.anything({ withBigInt: true, withTypedArray: true })` generate bigint typed arrays
- Test runs indefinitely for the `dictionary` arbitrary if `minKeys` constraint is too high
- Can't create 100%-defined Options
- Add timing related details on RunDetails
- Add `.filterMap(...)` on arbitraries
- Docs
- TypeScript not yet supported