aspnetcore/src/Http/Headers/test/Microsoft.Net.Http.Headers.Tests.csproj

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>$(DefaultNetCoreTargetFramework)</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <Reference Include="Microsoft.Net.Http.Headers" />
  </ItemGroup>

</Project>