Side by side
Proptest vs QuickCheck
Both stand on property-based testing tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Web
Proptest provides property-based testing, failure shrinking and state-machine support for Rust at no cost. Its maintenance model and experimental or partial support for some targets are worth weighing before adoption.
Visit Proptest Free plan Linux
QuickCheck provides property-testing tools for Haskell, including generators, shrinking and stateful tests. Review its dependency list and reported compiler compatibility before adding it to a project.
Visit QuickCheckThe facts
| Proptest | QuickCheck | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Web | Linux |
| Lowest paid plan | Not published | Free or on request |
| Plans published | None | 1 |
| Maker | Not published | Not published |
| Website | proptest-rs.github.io | hackage.haskell.org |
| On property-based testing tools | #19 of 28 | #15 of 28 |
Proptest: what it does well
- Automatically minimizes failing test cases.
- Persists failures for replay in later runs.
- Supports state-machine testing.
- Includes optional subprocess forking and timeouts.
- Available under Apache-2.0 and MIT licenses.
What to know first
- Maintained mainly through passive volunteer maintenance.
- Partial no_std support requires a nightly compiler.
- WebAssembly support is highly experimental.
- WebAssembly lacks i128 and u128 numeric strategies.
QuickCheck: what it does well
- Specifications and generators use Haskell combinators
- Supports shrinking failing cases
- Supports stateful and monadic property testing
- Licensed under BSD-3-Clause
What to know first
- Requires Haskell project dependencies
- Companion package adds dependencies
- Reported GHC testing is below version 9.15
Alternatives to Proptest Alternatives to QuickCheck The whole list