New Testing Framework Support:
All previous releases of FsUnit provided support for only NUnit; however, the goal for FsUnit has always been to provide support for other major testing frameworks as well. This release largely accomplishes this goal by adding support for MbUnit version 3.3.454.0 and xUnit.NET version 1.8.0.1549. While the majority of functions provided for NUnit are also provided for these two testing frameworks, there are a couple of features that are not available. Each of these missing features can easily be worked around and the FsUnit unit tests provide examples of this.
NuGet Packages:
The easiest way to get started with FsUnit is to install one of the following NuGet packages.
- FsUnit for NUnit can be installed via the original NuGet package ID of FsUnit.
- FsUnit for xUnit.NET can be installed via the FsUnit.xUnit package ID.
- FsUnit for MbUnit can be installed via the FsUnit.MbUnit package ID.
Additional Assertion:
In addition to support for MbUnit and xUnit.NET, the equalWithin function has been added. Thanks to erdoll for requesting this enhancement and for providing much of the code for the NUnit implementation. The equalWithin function allows an equality assertion with a specified tolerance. Examples are provided below:
NUnit Example:
module Test.``equalWithin assertions`` open NUnit.Framework open FsUnit [<Test>] let ``should equal within tolerance when less than``() = 10.09 |> should (equalWithin 0.1) 10.11 [<Test>] let ``should not equal within tolerance``() = 10.1 |> should not ((equalWithin 0.001) 10.11)xUnit.NET Example:
module Test.``equalWithin assertions`` open Xunit open FsUnit.Xunit [<Fact>] let ``should equal within tolerance when less than``() = 10.09 |> should (equalWithin 0.1) 10.11 [<Fact>] let ``should not equal within tolerance``() = 10.1 |> should not ((equalWithin 0.001) 10.11)MbUnit Example:
module Test.``equalWithin assertions`` open MbUnit.Framework open FsUnit.MbUnit [<Test>] let ``should equal within tolerance when less than``() = 10.09 |> should (equalWithin 0.1) 10.11 [<Test>] let ``should not equal within tolerance``() = 10.1 |> should not ((equalWithin 0.001) 10.11)Now on GitHub:
Last but not least, an FsUnit GitHub site is now available at https://github.com/dmohl/FsUnit. FsUnit has had several contributors with submissions ranging from inception and NUnit implementation by Ray Vernagus, to major and minor enhancements, to examples and documentation. I hope that this move to GitHub will spur additional collaboration. The GitHub site will now act as the primary place for development and collaboration, while the CodePlex site will house major releases. We would love to have additional features and contributors, so jump on over and submit a pull request.
On to the Next One...
We are already working on the next release of FsUnit. Rodrigo Vidal has submitted a few new NUnit assertions--which will be ported to the MbUnit and xUnit.NET implementations where possible. Additionally, there have been discussions of pulling in Phillip Trelford's F# friendly Mocking library.
Where would you like to see FsUnit go? We'd love to hear from you!
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