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
- Replace our custom Stream by native ones
- Create size-aware arbitraries for int
- Print `verbose: 2` execution summary during the run
- arrays of streams aren't very random
- Accept readonly versions of the contraints passed to the arbitraries
- Allow record to produce readonly properties when provided readonly
- Support multiple PRNG when generating values from the Workers
- Connect `filter` to rejection mechanisms like `fc.pre` does
- Better typings for record
- Better waitFor on scheduler
- Docs
- TypeScript not yet supported