Directory.Build.targets

<Project>
  <Import Project="..\Directory.Build.targets" />
  <Import Project="..\packages\xunit.runner.msbuild.2.4.2\**\xunit.runner.msbuild.props"
      Condition="$(IsTestProject) and '$(MSBuildRuntimeType)' != 'Core' and '$(TargetFrameworkIdentifier)' == '.NETFramework'" />

  <Target Name="Test" DependsOnTargets="_TestWithVSTest;_TestWithDotnetTest;_TestWithRunner" />

  <!-- Building with `dotnet msbuild`: Use VSTest target. -->
  <Target
    Name="_TestWithVSTest"
    Condition="$(IsTestProject) and '$(MSBuildRuntimeType)' == 'Core'">

    <MSBuild Projects="$(MSBuildProjectFullPath)" Targets="VSTest" Properties="VSTestNoBuild=true" />
  </Target>

  <!-- Building with `msbuild` and in outer build or building .NET Core: Use `dotnet test`. -->
  <Target
    Name="_TestWithDotnetTest"
    Condition="$(IsTestProject) and '$(MSBuildRuntimeType)' != 'Core' and '$(TargetFrameworkIdentifier)' != '.NETFramework'">

    <Exec Command='dotnet test --no-restore --no-build --verbosity minimal --configuration $(Configuration) "$(MSBuildProjectFullPath)"'/>
  </Target>

  <!-- Building with `msbuild`, in inner build, and building .NET Framework: Use xUnit MSBuild runner. -->
  <Target
    Name="_TestWithRunner"
    Condition="$(IsTestProject) and '$(MSBuildRuntimeType)' != 'Core' and '$(TargetFrameworkIdentifier)' == '.NETFramework'">

    <ItemGroup Condition=" '@(TestAssembly)' == '' ">
      <TestAssembly Include="$(TargetPath)" />
    </ItemGroup>
    <xunit Assemblies="@(TestAssembly)" />
  </Target>
</Project>