FSharp.Hedgehog vs QuickTheories
FSharp.Hedgehog
github.comQuickTheories
github.comSide by side
| Figure | FSharp.Hedgehog | QuickTheories |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 0 | 1 |
| Spec score · Property-Based Testing Tools | 7.5 (#13) | 7.7 (#10) |
| Generators | It includes generators for primitive values and composable operations for building generators for complex types. | Its generator DSL can create common Java types, constrain generated values, and combine or convert generators for custom types. |
| License | The repository license is Apache License 2.0. | The repository identifies its license as Apache-2.0. |
| Purpose | Hedgehog is a property-based testing system for .NET that automatically generates inputs to help find edge cases. | QuickTheories is a property based testing library for Java 8, described as a Java version of QuickCheck. |
| Test frameworks | The repository says Hedgehog works with any .NET test framework. | QuickTheories can run with JUnit, TestNG, or another test framework. |
Plans
In their own words
FSharp.Hedgehog
FSharp.Hedgehog has no write-up on Specifiction yet; its figures are above.
QuickTheories
QuickTheories is a free, open-source property-based testing library for Java 8. It checks general properties and invariants by generating random valid inputs, then automatically searches for smaller or simpler values that still fail a property. The library reports the seed for a falsified property, and tests can use fixed seeds for deterministic runs. Its generator DSL creates common Java types, constrains values, and combines or converts generators for custom types. QuickTheories works with JUnit, TestNG, and other test frameworks; `checkAssert` supports assertion libraries such as AssertJ and Hamcrest. The `forAll` API handles theories over one to four generated values. System properties configure seeds, example counts, and shrink attempts, while named profiles can reuse settings. An experimental coverage feature targets new code paths, but may reduce performance by about 10% and interfere with JaCoCo or other coverage systems. The project uses the Apache-2.0 license.