Hedgehog for .NET

December 2, 2025 ยท View on GitHub

Hedgehog for .NET

NuGet Build

Hedgehog explores a wide range of inputs and shrinks failures to minimal, valid examples. It works with any .NET test framework and can be used from F#, C#, or other .NET languages.

Features

  • Shrinking that preserves invariants by construction.
  • gen and property expressions for concise generators and properties.
  • Range combinators for controlled numeric and collection generation.
  • Composable generators for structured and recursive data types.
  • Deterministic runs via explicit seed control.
  • Shrink trees available for debugging.
  • and additional helpers for complex data generation.

Docs: https://hedgehogqa.github.io/fsharp-hedgehog/