FsCheck 2.5.0

There is a newer version of this package available.
See the version list below for details.

dotnet add package FsCheck --version 2.5.0

NuGet\Install-Package FsCheck -Version 2.5.0

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="FsCheck" Version="2.5.0" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

paket add FsCheck --version 2.5.0

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: FsCheck, 2.5.0"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

// Install FsCheck as a Cake Addin
#addin nuget:?package=FsCheck&version=2.5.0

// Install FsCheck as a Cake Tool
#tool nuget:?package=FsCheck&version=2.5.0

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

FsCheck is a tool for testing .NET programs automatically. The programmer provides
a specification of the program, in the form of properties which functions, methods
or objects should satisfy, and FsCheck then tests that the properties hold in a
large number of randomly generated cases.

While writing the properties, you are actually writing a testable specification of your program.

Specifications are expressed in F#, C# or VB, using combinators defined
in the FsCheck library. FsCheck provides combinators to define properties,
observe the distribution of test data, and define test data generators.
When a property fails, FsCheck automatically displays a minimal counter example.

Product	Compatible and additional computed target framework versions.
.NET Framework	net45 is compatible. net451 was computed. net452 was computed. net46 was computed. net461 was computed. net462 was computed. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

- FSharp.Core (>= 3.1.2.5)

NuGet packages (25)

Showing the top 5 NuGet packages that depend on FsCheck:

Package	Downloads
FsCheck.Xunit FsCheck.Xunit integrates FsCheck with xUnit.NET by adding a PropertyAttribute that runs FsCheck tests, similar to xUnit.NET's FactAttribute. All the options normally available in vanilla FsCheck via configuration can be controlled via the PropertyAttribute.	4.2M
FsCheck.NUnit FsCheck.NUnit integrates FsCheck with NUnit by adding a PropertyAttribute that runs FsCheck tests, similar to NUnit TestAttribute. All the options normally available in vanilla FsCheck via configuration can be controlled via the PropertyAttribute.	1.3M
Expecto.FsCheck Property testing for Expecto, powered by FsCheck	661.9K
AutoFixture.Idioms.FsCheck Ubiquitous use of AutoFixture for unit testing has given rise to a number of idiomatic unit tests - unit tests that tend to follow common templates. The AutoFixture Idioms.FsCheck library encapsulates these idioms into reusable classes and methods.	231.9K
MBrace.Tests A collection of abstract NUnit-based test suites for evaluating MBrace runtime implementations.	96.8K

GitHub repositories (18)

Showing the top 5 popular GitHub repositories that depend on FsCheck:

Repository	Stars
dotnet/runtime .NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.	15.4K
akkadotnet/akka.net Canonical actor model implementation for .NET with local + distributed actors in C# and F#.	4.7K
commandlineparser/commandline The best C# command line parser that brings standardized *nix getopt style, for .NET. Includes F# support	4.6K
AutoFixture/AutoFixture AutoFixture is an open source library for .NET designed to minimize the 'Arrange' phase of your unit tests in order to maximize maintainability. Its primary goal is to allow developers to focus on what is being tested rather than how to setup the test scenario, by making it easier to create object graphs containing test data.	3.4K
microsoft/onefuzz A self-hosted Fuzzing-As-A-Service platform	2.8K

Version	Downloads	Last updated
3.0.0-rc3	100,496	3/3/2024
3.0.0-rc2	1,451	2/25/2024
3.0.0-rc1	52,472	7/23/2023
3.0.0-beta2	77,669	1/8/2022
3.0.0-beta1	12,684	9/5/2021
3.0.0-alpha5	47,386	12/28/2020
3.0.0-alpha4	342,185	10/6/2018
3.0.0-alpha3	111,983	12/30/2017
3.0.0-alpha2	8,841	10/19/2017
3.0.0-alpha1	4,759	9/26/2017
2.16.6	857,985	7/1/2023
2.16.5	950,336	6/1/2022
2.16.4	606,674	1/8/2022
2.16.3	300,857	9/4/2021
2.16.2	8,852	8/30/2021
2.16.0	57,547	8/13/2021
2.15.3	265,815	5/8/2021
2.15.2	98,390	4/15/2021
2.15.1	146,128	2/27/2021
2.15.0	29,888	2/23/2021
2.14.6	55,215	2/21/2021
2.14.5	5,236	2/18/2021
2.14.4	34,752	1/31/2021
2.14.3	585,500	6/9/2020
2.14.2	185,094	3/11/2020
2.14.0	930,722	4/17/2019
2.13.0	320,700	11/11/2018
2.12.1	33,694	10/18/2018
2.12.0	12,350	10/6/2018
2.11.0	327,538	6/15/2018
2.10.10	72,578	5/15/2018
2.10.9	485,645	4/10/2018
2.10.8	80,248	3/3/2018
2.10.7	23,186	1/29/2018
2.10.6	26,198	12/30/2017
2.10.5	18,627	12/28/2017
2.10.4	94,683	11/8/2017
2.10.3	13,159	9/26/2017
2.10.2	12,478	9/25/2017
2.10.1	4,588	9/23/2017
2.10.0	17,188	9/7/2017
2.9.2	11,683	8/28/2017
2.9.1	4,174	8/27/2017
2.9.0	188,657	5/18/2017
2.9.0-rc3	6,376	5/7/2017
2.9.0-rc2	2,387	5/6/2017
2.9.0-rc1	2,380	5/6/2017
2.8.2	11,363	5/6/2017
2.8.1	4,199	5/1/2017
2.8.0	21,620	3/15/2017
2.7.2	11,716	3/5/2017
2.7.1	18,058	2/13/2017
2.7.0	13,970	1/15/2017
2.6.3	7,313	1/13/2017
2.6.2	105,159	10/7/2016
2.6.1	61,713	9/25/2016
2.6.0	43,313	8/3/2016
2.5.0	83,746	6/7/2016
2.4.0	18,494	4/20/2016
2.3.0	6,450	4/11/2016
2.2.5	6,911	3/28/2016
2.2.4	27,473	12/17/2015
2.2.3	6,494	11/26/2015
2.2.2	6,771	11/14/2015
2.2.1	4,933	11/5/2015
2.2.0	20,885	11/1/2015
2.1.0	12,925	9/30/2015
2.0.7	15,717	8/20/2015
2.0.6	5,491	8/14/2015
2.0.5	21,937	7/31/2015
2.0.4	10,242	7/20/2015
2.0.3	31,609	7/10/2015
2.0.2	3,865	7/7/2015
2.0.1	26,340	5/23/2015
2.0.1-rc1	2,364	5/23/2015
2.0.0-alpha	2,701	4/27/2015
1.0.4	23,424	12/9/2014
1.0.3	5,790	11/18/2014
1.0.2	4,720	10/27/2014
1.0.1	5,223	10/18/2014
1.0.0	12,357	8/3/2014
0.9.4	50,149	5/24/2014
0.9.3	3,414	5/9/2014
0.9.2	71,183	11/7/2013
0.9.1	6,091	7/2/2013
0.9.0.1	3,289	6/21/2013
0.9.0	3,424	6/18/2013
0.8.3	4,711	8/26/2012
0.8.2	3,453	7/4/2012
0.8.1	3,824	6/25/2012
0.7.1	7,725	5/29/2011

Add Gen.growingElements.
Add default generator and shrinker for IPAddress and MailAddress.
Gen.eval now uses the given size directly to generate an element of that size, instead of randomly choosing a size up to the given size. This means that on average
test case sizes are bigger.
Gen.frequency now throws a clearer exeption if no element can be generated.
Renamed Gen.suchThat and Gen.suchThatOption to Gen.where or Gen.filter and Gen.tryWhere or Gen.tryFilter. (The functions/methods with the old names are still there, they are just marked Obsolete and will be removed in a future version.)
Renamed DontSize to DoNotSize, DontShrink to DoNotShrink, DontSizeInt16 to DoNotSizeInt16 etc. (The types with the old names are still there, they are just marked Obsolete and will be removed in a future version.)
StateMachine: operation shrinker shrinks operations too, not just the list of operations.