xUnit.net

@xunit.net

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xUnit.net is a free, open source, community-focused unit testing tool for .NET. Source is available at https://github.com/xunit/. Currently maintained by https://mastodon.social/@bradwilson.

A poll about Visual Studio usage with xUnit.net.

0% voted for VS 2019
0% voted for VS 2022 (older than 17.8)
7% voted for VS 2022 (17.8 or newer)
93% voted for VS 2026

Poll results:
"Yes, we still use MTP v1" 0%
"No, we only use MTP v2" 52%
"No, we don't use MTP" 31%
"I'm not sure what we use" 17%

The Visual Studio 2026 "New Project" UI, showing the two new options: "Test runner for 'dotnet test' and Test Explorer", and "Command line experience for 'dotnet run'".

A list of files changed in xunit/xunit. You can see the list in commit hash ba0a606d73ece9dbb2755bb8d41b4a9f37dda70c.

Screenshot of api.xunit.net showing the home page for the v3 2.0.3 API, with a list of commonly used types.

The dialog box from Tools > Options, under Environment > Preview Features, showing the check box titled "Use testing platform server mode" being checked. To disable Microsoft.Testing.Platform support, uncheck this box and restart Visual Studio.

The xUnit.net home page in light mode