nw-pbt-go

Property-based testing in Go validates invariants by generating randomized inputs and asserting expected behaviors hold true. You can use the rapid and gopter libraries to define per-test generators and compose properties with clear assertions.

Unit property-based testing in Go validates pure functions using generated inputs, while stateful testing uses generated commands to validate state transitions. Both patterns are supported by rapid and gopter to improve test coverage and reliability.

You define custom input generators for Go data structures by using rapid or gopter to specify how to generate values for your types. These generators are then composed with properties to run randomized tests that verify invariants.

Yes, property-based testing integrates into standard Go projects to complement example unit tests. It works with typical Go data structures by defining generators that produce randomized inputs for validating invariants across unit and stateful scenarios.

Both rapid and gopter are supported frameworks for property-based testing in Go. You can integrate either library into your project to define generators and compose properties, choosing based on your preferred API style for unit and stateful testing.

You should use property-based testing in Go when you need to validate invariants across a wide range of randomized inputs, complementing standard example unit tests. It improves coverage and reliability by generating edge cases automatically.