Does xunit.runner.visualstudio not work for Visual Studio

Question

I've done a nuget install like this:

Install-Package xunit.runner.visualstudio -Version 2.2.0

On my test project.

I have a test similar to this:

public class When_Doing_Stuff_I_Want_To_Test
{

    [Fact]
    public void Can_Do_Stuff()
    {
        var result = DoStuff();

        result.ShouldNotBeNull();
        result.Success.ShouldBeTrue();
    }
}

Although that I have done numerous VS restarts, laptop reboots, left a day in between, VS 2017 is still not able to discover my tests:

What can I do to fix this and see my tests?

Addendum

I'm working under 4.6.1, so not yet Core.

Questions regarding the same topic that did not help:

• why-is-the-xunit-runner-not-finding-my-tests
• this response
• and this similar one
• xunit.runner.visualstudio not working on Visual Studio 2013 Update 4

So there's a lot going round, none of it helped ...

Update

I can't get NUnit to work either, won't show up in test explorer as well.

Update 2

I wiped my project and recreated the projects like so:

Then I copied my original code and added all necessary references, no difference.

Answer 1

After trawling the internet, it appears that targeting NETStandard.Library can't be used for test projects...

These were the links I got information from:

• Unit Tests not discovered in Visual Studio 2017
• Visual Studio 2017 RC does not detect nunit tests
• running xunit tests included in a .NET Standard 1.6 library

What can be done is have the project you want to test use NETStandard.Library and have your test project target Microsoft.NETCore.App. Your test project can then reference the project to test and the tests will run.

The .csproj for your test project will look something like this (versions might change):

<PropertyGroup>    
  <TargetFramework>netcoreapp1.1</TargetFramework>
</PropertyGroup>

<ItemGroup>
  <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.0.0" />
  <PackageReference Include="xunit" Version="2.2.0" />
  <PackageReference Include="xunit.runner.visualstudio" Version="2.2.0" />
</ItemGroup>

The project to test would be this:

<PropertyGroup>
  <TargetFramework>netstandard1.4</TargetFramework>
</PropertyGroup>

Lately I've had to run dotnet restore on the solution to get the tests to run, so you may need to do the same. Turns out .NET Core SDK 1.0.1 was being targeted instead of 1.0.4 (I didn't have the x86 version installed).