FsCheck Alternatives

FsCheck reviews and mentions

• One... Two... Testing
  7 projects | dev.to | 13 Sep 2025

  On the left corner, weighing in at v3.x, hailing from the OG PBT library, Haskell's QuickCheck, of which it's a direct port, we have FsCheck - F# premier PBT library, well established, battle-tested, community-driven, just solid.

• Property-based tests and clean architecture are perfect fit
  1 project | dev.to | 11 Oct 2022

  As you can see from the imports statement we're relying on FsCheck to generate some random values for us.

• When writing unit tests, what exactly am I looking for?
  1 project | /r/learnprogramming | 6 Jul 2022

  C# - FsCheck

• Is there a tool that could be used to generate fake unit test cases automatically for code coverage? (read description before downvoting)
  2 projects | /r/dotnet | 19 May 2022

  https://fscheck.github.io/FsCheck/ can hopefully generate random inputs automatically or with low effort for many methods to get your code coverage up. You don’t even need to write real tests right now, just call the methods with the random inputs and check they don’t fail.

• Does anyone know of a good place to learn and practice some F# preferably F# 6 to be able to use Task.
  1 project | /r/fsharp | 10 Dec 2021

  Try using F# for tests. It has some great libraries like FsCheck (https://fscheck.github.io/FsCheck/).

• Typesafe F# configuration binding
  4 projects | dev.to | 28 Nov 2021

  At Symbolica we're building a symbolic execution service that explores every reachable state of a user's program and verifies assertions at each of these states to check that the program is correct. By default it will check for common undefined behaviours, such as out-of-bounds memory reads or divide by zero, but it can also be used with custom, application specific, assertions too just like the kind you'd write in a unit test. Seen from this perspective it's kind of like FsCheck (or Haskell's QuickCheck or Python's Hypothesis), but much more exhaustive and without the randomness.

• Does anybody know a simple algorithm for generating unit tests given a function's code?
  7 projects | /r/compsci | 26 Jul 2021

  Maybe something like QuickCheck, a quick search gave me this library for .NET https://github.com/fscheck/FsCheck

• When do you consider your unit tests be "enough"?
  4 projects | /r/dotnet | 16 Jun 2021

  Because of the above I've generally been using tools like Stryker.NET and FsCheck to augment my testing suite. I'm still doing unit testing to find the more obvious "I haven't had my coffee, let's make sure I'm doing what I think I'm doing" bugs. I'm just using things like mutation testing, property testing, fuzzing, etc. to find the deeper issues in my code. There's a ton of libraries out there, including one that I've built for myself to help with testing but FsCheck and Stryker are just beautiful. And if you're interested in fuzzing, SharpFuzz is a great option. But that one isn't quite as easy of an on ramp compared to the other two that I mentioned.

• What are you working on? (2021-06)
  4 projects | /r/fsharp | 1 Jun 2021

  Looks cool. Is there a reason why you didn't use FsCheck or Hedgehog? They're built to generate random data for testing, and can return the seed if a test fails so you can rerun the test with the exact same data once you figure out what the problem is - which is useful if the failure condition is rare.

• Mutation Testing
  5 projects | /r/programming | 13 Apr 2021

  Haskell has QuickCheck and Hedgehog, and dotnet has both as well. F# is favored, but there's C# interop.

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